Building the OpenKnit Machine
![OpenKnit_machineFront.jpg](/proxy/?url=https://content.instructables.com/FI2/D7XW/I2XTQWFE/FI2D7XWI2XTQWFE.jpg&filename=OpenKnit_machineFront.jpg)
The OpenKnit machine is an open-source, low cost, digital fabrication tool developed by Gerard Rubio. The machine affords the user the opportunity to create his own clothing from digital files. Designing, producing and wearing clothes can now happen in the very same place, allowing the user to make decisions regarding creativity and responsibility.
This instructable shows you how to build the OpenKnit machine step-by-step. The machine is work-in-progress: anyone is allowed and encouraged to reproduce it and help to improve it.
This instructable has been developed for the OpenKnit machine workshop organized by Gerard Rubio, Waag Society and TU/E within the CRISP Smart Textile Services project. We would like to thank the people at WeMake maker space for reviewing and adjusting this instructable. All additional comments and suggestions on both the design of the machine and the Instructable are very welcome!
Also see this video:
Print Your Own Beanie (Wally120 OpenKnit machine release) from Gerard Rubio on Vimeo.
About Building This Machine
![000a building machine.jpg](/proxy/?url=https://content.instructables.com/FX5/LHX7/I2XTRE0Q/FX5LHX7I2XTRE0Q.jpg&filename=000a building machine.jpg)
![000b connecting machine.jpg](/proxy/?url=https://content.instructables.com/F21/DUW3/I2XTRE0R/F21DUW3I2XTRE0R.jpg&filename=000b connecting machine.jpg)
The process from start to scarf can be divided in three steps:
- building the machine
- connecting the machine
- using the machine
This instructable shows you all the steps to build the structural part of the machine.
Downloads
Shopping List
![000e bill of materials.jpg](/proxy/?url=https://content.instructables.com/FBA/8IMQ/I2XTRE26/FBA8IMQI2XTRE26.jpg&filename=000e bill of materials.jpg)
Bill of materials (updates) available at: https://github.com/g3rard/OpenKnit/tree/master/Wa...
805x604 mm acrylic sheet: https://github.com/g3rard/OpenKnit/tree/master/Wa...
3D printed parts: https://github.com/g3rard/OpenKnit/tree/master/Wa...
- Two 800x3 mm aluminum strips
- Two 800x2 mm aluminum strips
- Two 30x30x162 mm aluminum bars
- Two 30x30x300 mm aluminum bars
- Two 20x20x800 mm aluminum bars
- Two 30x30x800 mm aluminum bars
- Two 15x15x800 mm aluminum T-profile
- One Arduino Leonardo
- One micro interruptor
- One rotary encoder
- One axial bearing
- One stepper motor
- One timing pulley
- Six threaded rods, sizes: 2x16 2x17 and 2x22 mm
- 120 Knitmaster empisal silver knitting machine needles
- Four servo motors
- Four servo motor driver
- One timing belt
- 16 v-groove bearings
- One block of paraffine
- One bag Molex c-grid plastic holders: 4-pin, 3-pin and 2-pin
- One bag Molex c-grid female pins
- Phone cable on a reel (5 meter minimum)
- 120 paperclips 32 mm type N.2
- One piano hinge 510 mm
- Two wooden strips: flat on one side, a hole every 60 mm
- One rass rod 1.5 mm
- A bag of pin headers, male and female
- One terminal block
- One switching power supply
- One cross-shaped bead
Bolts and nuts, in generous amounts
- M3 tapered 7 mm
- M3 tapered 10 mm
- M3 tapered 12 mm
- M3 tapered 16 mm
- M3 tapered 20 mm
- M3 tapered 30 mm
- M3 flat head 8 mm
- M3 flat head 10 mm
- M3 flat head 12 mm
- M3 flat head 16 mm
- M3 flat head 20 mm
- M3 flat head 30 mm
- M3 regular nuts
- M3 nylock
- M3 washers
- M8 nuts and bolts (only a few)
- M8 washers (only a few)
List of Tools
![000f tools.jpg](/proxy/?url=https://content.instructables.com/FIV/S9ED/I2XTRE50/FIVS9EDI2XTRE50.jpg&filename=000f tools.jpg)
- flat screwdriver medium size
- phillips screwdriver medium size
- allen key M3
- pliers
- tweezers
- wrench M6 and M8
- small flat file
- small circular file
- hammer
- small zip ties
- grease lubricant
- spray or liquid lubricant
Thread the Aluminum Profiles
![00a aluminium bar.jpg](/proxy/?url=https://content.instructables.com/FIN/BKJH/I2XTRE7N/FINBKJHI2XTRE7N.jpg&filename=00a aluminium bar.jpg)
![0a aluminium profiles.jpg](/proxy/?url=https://content.instructables.com/FXE/O5WB/I2XTRE7Q/FXEO5WBI2XTRE7Q.jpg&filename=0a aluminium profiles.jpg)
![0c tool out of the bar.jpg](/proxy/?url=https://content.instructables.com/F74/I74Y/I2XTRE7R/F74I74YI2XTRE7R.jpg&filename=0c tool out of the bar.jpg)
![0e threaded bar.jpg](/proxy/?url=https://content.instructables.com/F9Q/8MUV/I2XTRE7Z/F9Q8MUVI2XTRE7Z.jpg&filename=0e threaded bar.jpg)
![0f threaded short bar.jpg](/proxy/?url=https://content.instructables.com/FNC/CRM5/I2XTRE80/FNCCRM5I2XTRE80.jpg&filename=0f threaded short bar.jpg)
![0g hole in short bar.jpg](/proxy/?url=https://content.instructables.com/FHQ/SLRP/I2XTRE82/FHQSLRPI2XTRE82.jpg&filename=0g hole in short bar.jpg)
You'll need to thread:
- two 20x20x800 mm bars: 6 mm tool on both sides.
- two 30x30x800 mm bars: 8 mm tool on both sides.
- two 30x30x162 mm bars: 8 mm tool on ONE side, plus one 8 mm hole on the top (see image).
Prepare the Aluminum Strips and T-bars
![1c bar and strips.jpg](/proxy/?url=https://content.instructables.com/FIU/B4IW/I2XTREI6/FIUB4IWI2XTREI6.jpg&filename=1c bar and strips.jpg)
![1c2 t shaped bar.jpg](/proxy/?url=https://content.instructables.com/F88/E4B3/I2XTREI8/F88E4B3I2XTREI8.jpg&filename=1c2 t shaped bar.jpg)
Make holes, and sink them with a countersink tool so the bolts will not stick out.
Flat strips
Make a hole at 50, 225, 400, 575, 750 mm.
(this doesn’t have to be very precise)
T-shaped bar:
Make holes at 14, 142, 271, 392, 410, 529, 657, 787 mm.
Place profile next to the acrylic to mark the exact place where the holes are going to be, this MUST be precise.
Assemble the Structural Bars
![1c bar and strips.jpg](/proxy/?url=https://content.instructables.com/FPO/034S/I2XTRERD/FPO034SI2XTRERD.jpg&filename=1c bar and strips.jpg)
![1d screw holders in bar.jpg](/proxy/?url=https://content.instructables.com/FR8/GMG2/I2XTREWX/FR8GMG2I2XTREWX.jpg&filename=1d screw holders in bar.jpg)
![1g bar and strip.jpg](/proxy/?url=https://content.instructables.com/FM1/I51O/I2XTREX0/FM1I51OI2XTREX0.jpg&filename=1g bar and strip.jpg)
You need:
- 20 x 20 profiles
- 20 mm aluminum strips
- 3D printed squares (8x8 mm): '2020 nuts'
- threaded nuts
- M3 x 7 bolts
Prepare the 2020 nuts:
You need the 3D printed squares (8x8 mm) and threaded nuts, five per strip. Place the nuts into the 3D printed parts.
Slide the nuts into the profile bar
See picture. Align the nuts with the holes in the aluminum strip.
Close the top of the bar
Using the M3 bolts.
Repeat on the bottom
Slide in five 2020 nuts, close the assembly with an aluminum strip.
Repeat this procedure with the other 2020 profile bar
Bend the Paperclips
![2a paperclips.jpg](/proxy/?url=https://content.instructables.com/FI0/VGIN/I2XTRFAQ/FI0VGINI2XTRFAQ.jpg&filename=2a paperclips.jpg)
Bend the paperclips as indicated in the image. The 'hook' on the right is the end result. You'll need 60 of them, have fun bending!
Prepare the Wooden Strips
![2b filing wood.jpg](/proxy/?url=https://content.instructables.com/FC1/LJ09/I2XTRFHO/FC1LJ09I2XTRFHO.jpg&filename=2b filing wood.jpg)
![2e clips around wooden bar.jpg](/proxy/?url=https://content.instructables.com/F47/BPM0/I2XTRFHS/F47BPM0I2XTRFHS.jpg&filename=2e clips around wooden bar.jpg)
![3a clips on wood.jpg](/proxy/?url=https://content.instructables.com/FGU/QYW5/I2XTRFHU/FGUQYW5I2XTRFHU.jpg&filename=3a clips on wood.jpg)
![3e clips on wood.jpg](/proxy/?url=https://content.instructables.com/F4V/G0AN/I2XTRFHV/F4VG0ANI2XTRFHV.jpg&filename=3e clips on wood.jpg)
The wooden strips will be part of the comb. For this part you need:
- Two half -rounded wooden strips, a hole every 60 mm and lines every 15 mm
- 60 paperclips
- Long flat hinge
- M3 bolts and nuts, 12 mm
Preparation
File small slide at the indicated lines.
Place the clips inside the slids. 30 per bar.
Take a look at the pictures how to position the 'hooks'.
Assemble the Comb
![3f pianoscharnier.jpg](/proxy/?url=https://content.instructables.com/FLL/IJV8/I2XTRFSG/FLLIJV8I2XTRFSG.jpg&filename=3f pianoscharnier.jpg)
![3g scharnier bevestigen.jpg](/proxy/?url=https://content.instructables.com/F7M/WGHO/I2XTRFSH/F7MWGHOI2XTRFSH.jpg&filename=3g scharnier bevestigen.jpg)
![3y comb finished!.jpg](/proxy/?url=https://content.instructables.com/FXF/B4BA/I2XTRFSI/FXFB4BAI2XTRFSI.jpg&filename=3y comb finished!.jpg)
Attach the hinge to the flat sides of the wooden pieces as indicated in the images. When the hinge opens, the hooks cross each other.
Prepare the Acrylic Parts
![Wally parts numbered.jpg](/proxy/?url=https://content.instructables.com/FTZ/9AOQ/I2XTRG1U/FTZ9AOQI2XTRG1U.jpg&filename=Wally parts numbered.jpg)
![Wally parts configuration.jpg](/proxy/?url=https://content.instructables.com/FYT/3NEL/I2XTRG25/FYT3NELI2XTRG25.jpg&filename=Wally parts configuration.jpg)
Place the acrylic parts in front of you on a table as indicated.
Make four piles of three layers each: see following step.
Prepare Layer (A)2
![Holes to sink.png](/proxy/?url=https://content.instructables.com/FJP/780G/I2XTRH1Y/FJP780GI2XTRH1Y.png&filename=Holes to sink.png)
Start with pile A. Take layer A1 off
In layer A2, sink three holes, indicated in RED. Then later, the bolts will not stick out.
Assemble the Acrylic Layers - 1
![4d nut in hole.jpg](/proxy/?url=https://content.instructables.com/FQB/RQXI/I2XTRHE7/FQBRQXII2XTRHE7.jpg&filename=4d nut in hole.jpg)
![4e nuts in holes.jpg](/proxy/?url=https://content.instructables.com/FAR/XR7Q/I2XTRHEK/FARXR7QI2XTRHEK.jpg&filename=4e nuts in holes.jpg)
![Schermafbeelding 2014-11-26 om 11.58.33.png](/proxy/?url=https://content.instructables.com/F0C/Q04L/I2XTRHEX/F0CQ04LI2XTRHEX.png&filename=Schermafbeelding 2014-11-26 om 11.58.33.png)
![Schermafbeelding 2014-11-26 om 12.02.34.png](/proxy/?url=https://content.instructables.com/FOS/42EN/I2XTRHEZ/FOS42ENI2XTRHEZ.png&filename=Schermafbeelding 2014-11-26 om 12.02.34.png)
![Schermafbeelding 2014-11-26 om 12.02.22.png](/proxy/?url=https://content.instructables.com/FQY/XXKR/I2XTRHF1/FQYXXKRI2XTRHF1.png&filename=Schermafbeelding 2014-11-26 om 12.02.22.png)
Place nuts into the 4 pockets in A2.
Place 120 needles in the openings.
Repeat for pile B, C and D.
Assemble the Acrylic Layers - 2
![4h screw and nut.jpg](/proxy/?url=https://content.instructables.com/FBW/BHXJ/I2XTRHTH/FBWBHXJI2XTRHTH.jpg&filename=4h screw and nut.jpg)
![4i screw fixed.jpg](/proxy/?url=https://content.instructables.com/FPA/2UTP/I2XTRHTI/FPA2UTPI2XTRHTI.jpg&filename=4i screw fixed.jpg)
Place layers (A, B, C, D )1 back on top, get 8 rounded bolts M3 x 12.
Screw the layers together.
Attach the T-shaped Bar
![5c screw rail.jpg](/proxy/?url=https://content.instructables.com/FV8/Q3ZR/I2XTRI1V/FV8Q3ZRI2XTRI1V.jpg&filename=5c screw rail.jpg)
![4j rail fixed.jpg](/proxy/?url=https://content.instructables.com/FID/MROE/I2XTRI1X/FIDMROEI2XTRI1X.jpg&filename=4j rail fixed.jpg)
Attach the T-shape profile to the bottoms of A 1-3 and B1-3.
First loosely, if it al fits thighten all bolts.
Align '2020nuts' With Holes in Acrylic
![Schermafbeelding 2014-11-26 om 12.19.33.png](/proxy/?url=https://content.instructables.com/F3S/ZAJW/I2XTRILP/F3SZAJWI2XTRILP.png&filename=Schermafbeelding 2014-11-26 om 12.19.33.png)
(in the NON threaded 2020 profiles).
Fix the Acrylic on Top of the Structural Bar
![6d screw on structural bar.jpg](/proxy/?url=https://content.instructables.com/FVC/A3OF/I2XTRJ52/FVCA3OFI2XTRJ52.jpg&filename=6d screw on structural bar.jpg)
Sink holes, and place bolts & nuts through acrylic into the nuts.
Use 8 x M3x14 countersink bolts.
Also fix piles B, C and D to the T shape and structural bar.
Placing the 'encoder Rack'
![9a teeth along bar.jpg](/proxy/?url=https://content.instructables.com/F24/GR0B/I2XTRJR7/F24GR0BI2XTRJR7.jpg&filename=9a teeth along bar.jpg)
![9bteeth along bar.jpg](/proxy/?url=https://content.instructables.com/FF7/FH4B/I2XTRJRJ/FF7FH4BI2XTRJRJ.jpg&filename=9bteeth along bar.jpg)
![9d press the teeth in.jpg](/proxy/?url=https://content.instructables.com/FDV/YJ7Q/I2XTRJRX/FDVYJ7QI2XTRJRX.jpg&filename=9d press the teeth in.jpg)
First place the ‘encoder_rack’ pieces along the bar.
Leave 50 mm on each side.
Press the piece into the bar.
Assemble the “top_plate_bearings” Part
![7 bearing holder plus bearings.jpg](/proxy/?url=https://content.instructables.com/FF3/OC26/I2XTRK82/FF3OC26I2XTRK82.jpg&filename=7 bearing holder plus bearings.jpg)
![7b fixing bearings.jpg](/proxy/?url=https://content.instructables.com/FRF/76E7/I2XTRK8T/FRF76E7I2XTRK8T.jpg&filename=7b fixing bearings.jpg)
![7c in 4 corners.jpg](/proxy/?url=https://content.instructables.com/F2I/2I87/I2XTRK8V/F2I2I87I2XTRK8V.jpg&filename=7c in 4 corners.jpg)
![7e all corners a bearing.jpg](/proxy/?url=https://content.instructables.com/F0X/HIWH/I2XTRK98/F0XHIWHI2XTRK98.jpg&filename=7e all corners a bearing.jpg)
Take the “top_plate_bearings” part + 4 bearings and attach them as indicated.
Prepare the Top of the Carriage Part
![8a nut in hole.jpg](/proxy/?url=https://content.instructables.com/FMY/DF7N/I2XTRKX7/FMYDF7NI2XTRKX7.jpg&filename=8a nut in hole.jpg)
![8b catch the nut.jpg](/proxy/?url=https://content.instructables.com/F41/VUC1/I2XTRKXM/F41VUC1I2XTRKXM.jpg&filename=8b catch the nut.jpg)
![8d nut is seeded.jpg](/proxy/?url=https://content.instructables.com/FG0/GBA8/I2XTRKXO/FG0GBA8I2XTRKXO.jpg&filename=8d nut is seeded.jpg)
Take the “top_plate” part.
Place a nut into the hole.
Catch the nut with the screw.
Pull the nut down, take screw out.
Now the nut is 'seeded'.
Place the Rotary Encoder
![8e place potentiometer.jpg](/proxy/?url=https://content.instructables.com/FGU/130T/I2XTRLMM/FGU130TI2XTRLMM.jpg&filename=8e place potentiometer.jpg)
![8f potentiometer in place.jpg](/proxy/?url=https://content.instructables.com/FCG/OLMA/I2XTRLMN/FCGOLMAI2XTRLMN.jpg&filename=8f potentiometer in place.jpg)
Place the rotary encoder with the pins straight, cut the legs.
Slide it in, careful with the pins.
Assemble “top_plate_bearings” Part With “top_plate” Part
![8g the green monster.jpg](/proxy/?url=https://content.instructables.com/FZ2/0AZG/I2XTRLX9/FZ20AZGI2XTRLX9.jpg&filename=8g the green monster.jpg)
![8h top of the carriage.jpg](/proxy/?url=https://content.instructables.com/FJ9/5LZ1/I2XTRLXB/FJ95LZ1I2XTRLXB.jpg&filename=8h top of the carriage.jpg)
![8i take five long screws.jpg](/proxy/?url=https://content.instructables.com/FNE/0REV/I2XTRLXC/FNE0REVI2XTRLXC.jpg&filename=8i take five long screws.jpg)
![8j screw them all in.jpg](/proxy/?url=https://content.instructables.com/FT5/MCFE/I2XTRLXH/FT5MCFEI2XTRLXH.jpg&filename=8j screw them all in.jpg)
Take five long M3x12 countersink bolts.
Attach the two parts firmly.
Add the Gear
![8j screw them all in.jpg](/proxy/?url=https://content.instructables.com/F9O/XFT0/I2XTRMD3/F9OXFT0I2XTRMD3.jpg&filename=8j screw them all in.jpg)
![8k gear on potmeter.jpg](/proxy/?url=https://content.instructables.com/FET/GWS4/I2XTRMD4/FETGWS4I2XTRMD4.jpg&filename=8k gear on potmeter.jpg)
Once the screws are all attached, place the “encoder_pinion” on the rotary encoder.
Prepare a Servomotor
![10a motor and stuff.jpg](/proxy/?url=https://content.instructables.com/FB2/KDTE/I2XTRNNF/FB2KDTEI2XTRNNF.jpg&filename=10a motor and stuff.jpg)
![Schermafbeelding 2014-11-26 om 12.47.46.png](/proxy/?url=https://content.instructables.com/FUJ/9DJ6/I2XTRNP0/FUJ9DJ6I2XTRNP0.png&filename=Schermafbeelding 2014-11-26 om 12.47.46.png)
![10b motor in structure.jpg](/proxy/?url=https://content.instructables.com/FVH/FW9K/I2XTRNP1/FVHFW9KI2XTRNP1.jpg&filename=10b motor in structure.jpg)
![10c place tiny screw.jpg](/proxy/?url=https://content.instructables.com/FON/1RFG/I2XTRNPE/FON1RFGI2XTRNPE.jpg&filename=10c place tiny screw.jpg)
![Schermafbeelding 2014-11-26 om 12.49.07.png](/proxy/?url=https://content.instructables.com/FI7/SFWN/I2XTRNPF/FI7SFWNI2XTRNPF.png&filename=Schermafbeelding 2014-11-26 om 12.49.07.png)
Use the “top_plate_servo_mount”, place the servo in - be careful not to loose the tiny servo bolt that comes with the motor.
Make sure the arm does the movement indicated in green.
Attach the tiny screw.
Put M3 x 16 bolts through holder and motor to fixate them.
Place the Servo on the Top Plate
![10d it all goes on top.jpg](/proxy/?url=https://content.instructables.com/FXW/BNAX/I2XTROJ1/FXWBNAXI2XTROJ1.jpg&filename=10d it all goes on top.jpg)
![10f more screwing to do.jpg](/proxy/?url=https://content.instructables.com/FXW/EKZ5/I2XTROJ2/FXWEKZ5I2XTROJ2.jpg&filename=10f more screwing to do.jpg)
Attach the servo on top with 3 bolts.
Prepare the Main Carriage
![Schermafbeelding 2014-11-26 om 12.54.16.png](/proxy/?url=https://content.instructables.com/FSZ/4XVH/I2XTRP57/FSZ4XVHI2XTRP57.png&filename=Schermafbeelding 2014-11-26 om 12.54.16.png)
These are the parts you need.
Each hole corresponds to a letter.
Attach the N-mount Part
![Schermafbeelding 2014-11-26 om 12.55.20.png](/proxy/?url=https://content.instructables.com/FVA/5FQ7/I2XTRPYA/FVA5FQ7I2XTRPYA.png&filename=Schermafbeelding 2014-11-26 om 12.55.20.png)
![Schermafbeelding 2014-11-26 om 12.55.30.png](/proxy/?url=https://content.instructables.com/FEU/YVQJ/I2XTRPYB/FEUYVQJI2XTRPYB.png&filename=Schermafbeelding 2014-11-26 om 12.55.30.png)
![Schermafbeelding 2014-11-26 om 12.55.40.png](/proxy/?url=https://content.instructables.com/FGP/KIIK/I2XTRPYO/FGPKIIKI2XTRPYO.png&filename=Schermafbeelding 2014-11-26 om 12.55.40.png)
![Schermafbeelding 2014-11-26 om 12.55.50.png](/proxy/?url=https://content.instructables.com/FGD/Y5ZP/I2XTRPZ2/FGDY5ZPI2XTRPZ2.png&filename=Schermafbeelding 2014-11-26 om 12.55.50.png)
Place M8 nut into the “N_mount”.
Position it with the “carriage” part and a bearing.
Attach the long end with a bolt.
Add Another Bearing
![Schermafbeelding 2014-11-26 om 12.55.58.png](/proxy/?url=https://content.instructables.com/FN2/MTV8/I2XTRQDA/FN2MTV8I2XTRQDA.png&filename=Schermafbeelding 2014-11-26 om 12.55.58.png)
![Schermafbeelding 2014-11-26 om 12.56.08.png](/proxy/?url=https://content.instructables.com/F6C/KQ5E/I2XTRQDB/F6CKQ5EI2XTRQDB.png&filename=Schermafbeelding 2014-11-26 om 12.56.08.png)
![Schermafbeelding 2014-11-26 om 12.56.17.png](/proxy/?url=https://content.instructables.com/FT6/ZQMH/I2XTRQDO/FT6ZQMHI2XTRQDO.png&filename=Schermafbeelding 2014-11-26 om 12.56.17.png)
Use M3x16 30mm countersink bolt and nylock nut to attach the bearing.
Place “servo_mount_carriage” Parts
![Schermafbeelding 2014-11-26 om 12.56.32.png](/proxy/?url=https://content.instructables.com/F05/W2UD/I2XTRRDA/F05W2UDI2XTRRDA.png&filename=Schermafbeelding 2014-11-26 om 12.56.32.png)
You'll need 2 x M3x30 countersink bolts to place the servo mount carriage parts.
Prepare the Servo Motor
![Schermafbeelding 2014-11-26 om 16.20.23.png](/proxy/?url=https://content.instructables.com/F7Y/MO0P/I2XTS7MP/F7YMO0PI2XTS7MP.png&filename=Schermafbeelding 2014-11-26 om 16.20.23.png)
![Schermafbeelding 2014-11-26 om 16.20.34.png](/proxy/?url=https://content.instructables.com/FHG/B1FU/I2XTS7Q2/FHGB1FUI2XTS7Q2.png&filename=Schermafbeelding 2014-11-26 om 16.20.34.png)
Position the ‘wings’ of the servo motor like this and fix with the tiny screw from the package. File its holes on both sides of the black plastic, they need to be a bit wider. Make sure the arm moves as indicated in green.
Make the 'servo Beam Mount'
![Schermafbeelding 2014-11-26 om 16.33.19.png](/proxy/?url=https://content.instructables.com/FU2/BI6F/I2XTSBHN/FU2BI6FI2XTSBHN.png&filename=Schermafbeelding 2014-11-26 om 16.33.19.png)
![11l pin.jpg](/proxy/?url=https://content.instructables.com/F7D/W3HM/I2XTSBJF/F7DW3HMI2XTSBJF.jpg&filename=11l pin.jpg)
![11m bend the pin.jpg](/proxy/?url=https://content.instructables.com/FSL/VT80/I2XTSBJI/FSLVT80I2XTSBJI.jpg&filename=11m bend the pin.jpg)
![11o pin in holder.jpg](/proxy/?url=https://content.instructables.com/FMT/AL8W/I2XTSBK7/FMTAL8WI2XTSBK7.jpg&filename=11o pin in holder.jpg)
![11p get servo.jpg](/proxy/?url=https://content.instructables.com/FJ8/AX5N/I2XTSBKY/FJ8AX5NI2XTSBKY.jpg&filename=11p get servo.jpg)
![11q servo in holder.jpg](/proxy/?url=https://content.instructables.com/FQC/TG62/I2XTSBL2/FQCTG62I2XTSBL2.jpg&filename=11q servo in holder.jpg)
![11q tiewrap.jpg](/proxy/?url=https://content.instructables.com/FWP/GSOO/I2XTSBLQ/FWPGSOOI2XTSBLQ.jpg&filename=11q tiewrap.jpg)
Take the 3D printed 'servo beam mount' part.
Bend the pin.
Slide the pin into the part.
Position it over the servo motor wings.
Tie the pieces together.
Attach the Motor to the Carriage
![Schermafbeelding 2014-11-26 om 16.39.58.png](/proxy/?url=https://content.instructables.com/F66/VR82/I2XTSC81/F66VR82I2XTSC81.png&filename=Schermafbeelding 2014-11-26 om 16.39.58.png)
Using long M3 bolts and nuts.
Assemble the Slider Part
![12a get acrylic.jpg](/proxy/?url=https://content.instructables.com/FUM/MNUA/I2XTSE9W/FUMMNUAI2XTSE9W.jpg&filename=12a get acrylic.jpg)
![12b a through pin in slid.jpg](/proxy/?url=https://content.instructables.com/FJ8/6KWL/I2XTSEAM/FJ86KWLI2XTSEAM.jpg&filename=12b a through pin in slid.jpg)
![12c through slid.jpg](/proxy/?url=https://content.instructables.com/FTT/09VS/I2XTSEDG/FTT09VSI2XTSEDG.jpg&filename=12c through slid.jpg)
![12e done with acrylic.jpg](/proxy/?url=https://content.instructables.com/F5J/NU78/I2XTSEED/F5JNU78I2XTSEED.jpg&filename=12e done with acrylic.jpg)
![12f bar goes on top.jpg](/proxy/?url=https://content.instructables.com/FD9/MYSZ/I2XTSEF0/FD9MYSZI2XTSEF0.jpg&filename=12f bar goes on top.jpg)
![12g with cross screws.jpg](/proxy/?url=https://content.instructables.com/F6K/GS59/I2XTSEGC/F6KGS59I2XTSEGC.jpg&filename=12g with cross screws.jpg)
Take the white acrylic 'slider' square.
Position it on the pin.
Place it in the slid as indicated in the image. Now it should be able to slide.
Attach the 3D printed 'slider guide' on top with M3 cross bolts.
Prepare the SLED Mechanism
![Schermafbeelding 2014-11-26 om 16.45.32.png](/proxy/?url=https://content.instructables.com/FRT/MT3T/I2XTSFUK/FRTMT3TI2XTSFUK.png&filename=Schermafbeelding 2014-11-26 om 16.45.32.png)
![Schermafbeelding 2014-11-26 om 16.45.41.png](/proxy/?url=https://content.instructables.com/FX2/VNW7/I2XTSFWM/FX2VNW7I2XTSFWM.png&filename=Schermafbeelding 2014-11-26 om 16.45.41.png)
![Schermafbeelding 2014-11-26 om 16.45.49.png](/proxy/?url=https://content.instructables.com/FBI/9NXH/I2XTSFX9/FBI9NXHI2XTSFX9.png&filename=Schermafbeelding 2014-11-26 om 16.45.49.png)
![Schermafbeelding 2014-11-26 om 16.46.48.png](/proxy/?url=https://content.instructables.com/FLM/5XU1/I2XTSFXA/FLM5XU1I2XTSFXA.png&filename=Schermafbeelding 2014-11-26 om 16.46.48.png)
Use two M3 x 12 bolts.
To place the 'sled mount' on the carriage.
Take 'sled', 'sled arms' and a servo motor, plus a bended paperclip.
Make sure the arm of the servo can move as indicated with the green arrow in the picture.
Attach the Motor
![13e position motor.jpg](/proxy/?url=https://content.instructables.com/FFF/N14L/I2XTSIB0/FFFN14LI2XTSIB0.jpg&filename=13e position motor.jpg)
![13f motor and long screw.jpg](/proxy/?url=https://content.instructables.com/FIF/WAPG/I2XTSIBJ/FIFWAPGI2XTSIBJ.jpg&filename=13f motor and long screw.jpg)
Screw the motor to the sled mechanism using an M3 x 16 bolt.
Slide the long M3x35 bolt through the hole.
Add Arms
![13g other moving things on screw.jpg](/proxy/?url=https://content.instructables.com/FIX/YQ7Y/I2XTSJUR/FIXYQ7YI2XTSJUR.jpg&filename=13g other moving things on screw.jpg)
![13h holder.jpg](/proxy/?url=https://content.instructables.com/F9G/BD0L/I2XTSJUT/F9GBD0LI2XTSJUT.jpg&filename=13h holder.jpg)
Now slide two of the arms over the 35mm bolt towards the motor. Finish it with a nut with nylon, allowing the arms to turn freely.
Almost Done With the Carriage...
![13 i for green thing.jpg](/proxy/?url=https://content.instructables.com/FHM/VOU2/I2XTSMR9/FHMVOU2I2XTSMR9.jpg&filename=13 i for green thing.jpg)
![13j green thing and pin.jpg](/proxy/?url=https://content.instructables.com/FKG/FGN5/I2XTSMTV/FKGFGN5I2XTSMTV.jpg&filename=13j green thing and pin.jpg)
![13k gefriemel.jpg](/proxy/?url=https://content.instructables.com/FBG/85YA/I2XTSMTW/FBG85YAI2XTSMTW.jpg&filename=13k gefriemel.jpg)
![11z full carriage assembly.jpg](/proxy/?url=https://content.instructables.com/FYC/CPNM/I2XTSMW0/FYCCPNMI2XTSMW0.jpg&filename=11z full carriage assembly.jpg)
At the top side of the arms, attach the bright green part, using a nut with nylon again. The sled should move freely.
Pull the paper clip though the wing of the motor and the bright green part and bend it to fix it, as shown in the picture.
Now you have finished your first carriage piece! There is two of them, so one more to go...
Make the 'legs' of the Machine
![20b place nut.JPG](/proxy/?url=https://content.instructables.com/FMP/G3TM/I2XTSSTH/FMPG3TMI2XTSSTH.jpg&filename=20b place nut.JPG)
![20c put leg.JPG](/proxy/?url=https://content.instructables.com/FSX/3XD7/I2XTSSVM/FSX3XD7I2XTSSVM.jpg&filename=20c put leg.JPG)
![20d under acrylic.JPG](/proxy/?url=https://content.instructables.com/FLF/ZI1E/I2XTSSYD/FLFZI1EI2XTSSYD.jpg&filename=20d under acrylic.JPG)
![21a slide in space invaders.JPG](/proxy/?url=https://content.instructables.com/F5X/9C9X/I2XTSSYZ/F5X9C9XI2XTSSYZ.jpg&filename=21a slide in space invaders.JPG)
Take the four leg parts, place the nut with the help of the bolt.
Place them underneath the acrylic assembly.
Slide in the 'space invader'.
Place the 3030 Profiles
![21b 3030 profile.JPG](/proxy/?url=https://content.instructables.com/FBX/LZV9/I2XTSTR8/FBXLZV9I2XTSTR8.jpg&filename=21b 3030 profile.JPG)
![21c slide in legs.JPG](/proxy/?url=https://content.instructables.com/FWT/C2K6/I2XTSTSM/FWTC2K6I2XTSTSM.jpg&filename=21c slide in legs.JPG)
![21e slowly.JPG](/proxy/?url=https://content.instructables.com/F16/52QX/I2XTSTTG/F1652QXI2XTSTTG.jpg&filename=21e slowly.JPG)
![21f keep straight.JPG](/proxy/?url=https://content.instructables.com/FWS/RN8M/I2XTSTTH/FWSRN8MI2XTSTTH.jpg&filename=21f keep straight.JPG)
Take the 30 x 30 x 800 mm aluminum bars. Carefully slide the '3030' in, holding the 'leg' parts straight.
Do it really slowly slowly while holding the other 'leg' parts straight.
Place the Short Aluminum Profiles
![22a screws and profiles.JPG](/proxy/?url=https://content.instructables.com/F0K/KKXZ/I2XTSVC9/F0KKKXZI2XTSVC9.jpg&filename=22a screws and profiles.JPG)
![22b short profiles in place.JPG](/proxy/?url=https://content.instructables.com/FG4/4PGT/I2XTSVD5/FG44PGTI2XTSVD5.jpg&filename=22b short profiles in place.JPG)
![22c don't tighten all the way.JPG](/proxy/?url=https://content.instructables.com/FDO/GONO/I2XTSVDL/FDOGONOI2XTSVDL.jpg&filename=22c don't tighten all the way.JPG)
![23a clamps.JPG](/proxy/?url=https://content.instructables.com/F66/G3DA/I2XTSVDN/F66G3DAI2XTSVDN.jpg&filename=23a clamps.JPG)
![22b on the table.JPG](/proxy/?url=https://content.instructables.com/FOA/ND73/I2XTSVEV/FOAND73I2XTSVEV.jpg&filename=22b on the table.JPG)
You need the 320 mm long profiles, 4 M8 washers and M8 x 50 bolts.
Place the profiles carefully on the side of the machine, don't tighten them all the way.
Then get the clamps. It is recommended to have 2 people for this task: clamping the machine on the table.
Place the Vertical Short Bars
![22c whort profiles.JPG](/proxy/?url=https://content.instructables.com/FUT/DB9O/I2XTSZDJ/FUTDB9OI2XTSZDJ.jpg&filename=22c whort profiles.JPG)
![22d profiles at machine.JPG](/proxy/?url=https://content.instructables.com/FC2/F0GV/I2XTSZDK/FC2F0GVI2XTSZDK.jpg&filename=22d profiles at machine.JPG)
You'll need the 164 mm short aluminum bars, 2 M8 x 50 bolts and M8 washers.
Place the bar as indicated in the picture. Put it so the holes on the side are at the top on the outside.
Prepare the Yarn Carrier
![Schermafbeelding 2014-11-26 om 17.28.26.png](/proxy/?url=https://content.instructables.com/FQC/4UZB/I2XTT156/FQC4UZBI2XTT156.png&filename=Schermafbeelding 2014-11-26 om 17.28.26.png)
![22e narrow the zip ties.JPG](/proxy/?url=https://content.instructables.com/FHW/US6H/I2XTT157/FHWUS6HI2XTT157.jpg&filename=22e narrow the zip ties.JPG)
![IMG_6328.JPG](/proxy/?url=https://content.instructables.com/F4V/R1RI/I2XTT159/F4VR1RII2XTT159.jpg&filename=IMG_6328.JPG)
![IMG_6330.JPG](/proxy/?url=https://content.instructables.com/FEC/2S0W/I2XTT15E/FEC2S0WI2XTT15E.jpg&filename=IMG_6330.JPG)
![IMG_6333.JPG](/proxy/?url=https://content.instructables.com/FEQ/5MAC/I2XTT15I/FEQ5MACI2XTT15I.jpg&filename=IMG_6333.JPG)
You need the yarn carrier part, 4 M3 nylon nuts, 4 M3x12 countersink bolts and 4 bearings, a cross shaped bead and a tie wrap.
Narrow the tie if yours is too thick.
Tighten the nut without blocking the bearing.
Smooth the cross shaped beads so the thread can move through easily.
Snap the cross in, and use the zip tie carefully.
Bring the Yarn Carrier in Position
![24a horizontal bar.JPG](/proxy/?url=https://content.instructables.com/FPX/4G6P/I34DY6SI/FPX4G6PI34DY6SI.jpg&filename=24a horizontal bar.JPG)
![24b slide over bar.JPG](/proxy/?url=https://content.instructables.com/FJ8/0A4P/I34DY6SK/FJ80A4PI34DY6SK.jpg&filename=24b slide over bar.JPG)
![24c attach but not screw .JPG](/proxy/?url=https://content.instructables.com/FLB/IA1J/I34DY6SM/FLBIA1JI34DY6SM.jpg&filename=24c attach but not screw .JPG)
You'll need the 30x30 structural bar 'sandwich', the yarn carrier, two M6 wide washers, and two M6x50 bolts.
Slide the yarn carrier over the length of the bar. Attach the bar horizontally between the vertical short aluminum profiles. Put the bolts all the way in but do not tighten them yet.
Place the 'L_2020-3030' Parts
![25a toads.JPG](/proxy/?url=https://content.instructables.com/FC8/02XI/I34DY8A6/FC802XII34DY8A6.jpg&filename=25a toads.JPG)
![25b slide them in.JPG](/proxy/?url=https://content.instructables.com/FGR/6Z2V/I34DY8AI/FGR6Z2VI34DY8AI.jpg&filename=25b slide them in.JPG)
![25c untill the corners on both sides.JPG](/proxy/?url=https://content.instructables.com/FFB/IOI8/I34DY8AJ/FFBIOI8I34DY8AJ.jpg&filename=25c untill the corners on both sides.JPG)
Take the two parts called L_2020-3030. Slide them carefully down into both the vertical profiles.
Bring the Encoder Rack Into Position
![26a encoder rack profile.JPG](/proxy/?url=https://content.instructables.com/FHN/FH4K/I34DY8ZN/FHNFH4KI34DY8ZN.jpg&filename=26a encoder rack profile.JPG)
![26b slide it down.JPG](/proxy/?url=https://content.instructables.com/F6T/Z3MZ/I34DY902/F6TZ3MZI34DY902.jpg&filename=26b slide it down.JPG)
![26c screw it.JPG](/proxy/?url=https://content.instructables.com/F2O/7U3P/I34DY90G/F2O7U3PI34DY90G.jpg&filename=26c screw it.JPG)
You'll need the 20x20x800 mm bar with the encoder rack inside, two of the 'L_2020-3030' parts, two M6 wide washers and two M6x50 bolts.
Place the orange part inside between the profile and the rail and slide it into the 3030 profile 164 mm from both sides simultaneously.
Put the bolts through but do not tighten yet.
Place the Carriages
![Schermafbeelding 2014-12-01 om 09.44.43.png](/proxy/?url=https://content.instructables.com/FVX/MT1P/I34DYC9I/FVXMT1PI34DYC9I.png&filename=Schermafbeelding 2014-12-01 om 09.44.43.png)
![27b carriage and bearing.JPG](/proxy/?url=https://content.instructables.com/F2C/FJSR/I34DYC9J/F2CFJSRI34DYC9J.jpg&filename=27b carriage and bearing.JPG)
![27c place carriage.JPG](/proxy/?url=https://content.instructables.com/FOG/4KAI/I34DYC9W/FOG4KAII34DYC9W.jpg&filename=27c place carriage.JPG)
![27d make it slide.JPG](/proxy/?url=https://content.instructables.com/FLO/7DW9/I34DYCAA/FLO7DW9I34DYCAA.jpg&filename=27d make it slide.JPG)
![27e put bolt.JPG](/proxy/?url=https://content.instructables.com/FSM/42JB/I34DYCAD/FSM42JBI34DYCAD.jpg&filename=27e put bolt.JPG)
![27f make it go all the way.JPG](/proxy/?url=https://content.instructables.com/F2M/1EUI/I34DYCAQ/F2M1EUII34DYCAQ.jpg&filename=27f make it go all the way.JPG)
![27g repeat on other side.JPG](/proxy/?url=https://content.instructables.com/FTN/O8ZA/I34DYCB5/FTNO8ZAI34DYCB5.jpg&filename=27g repeat on other side.JPG)
Take the carriage and prepare the bolt with the bearing for later.
Insert the carriage into the rail carefully and put it in place. Carefully insert the M3x20 bolt as indicated in the third image. The bolt should go all the way in.
Place the Top Carriage
![28b insert top carriage.JPG](/proxy/?url=https://content.instructables.com/FCC/KTG9/I34DYEQI/FCCKTG9I34DYEQI.jpg&filename=28b insert top carriage.JPG)
![28c make it fit.JPG](/proxy/?url=https://content.instructables.com/FLM/24MD/I34DYEQN/FLM24MDI34DYEQN.jpg&filename=28c make it fit.JPG)
![28d and slide.JPG](/proxy/?url=https://content.instructables.com/FD4/D1HL/I34DYEQQ/FD4D1HLI34DYEQQ.jpg&filename=28d and slide.JPG)
You'll need the six threaded rods, 22 x M8 nuts, 18 x M8 washers, and the top carriage.
Insert the top carriage assembly, the bearings of the top carriage fit on the bottom of the rail.
Place Nuts for the Rods
![29a insert nut.JPG](/proxy/?url=https://content.instructables.com/F1K/GUZV/I34DYG7X/F1KGUZVI34DYG7X.jpg&filename=29a insert nut.JPG)
![29b now they are locked.JPG](/proxy/?url=https://content.instructables.com/FHK/XIIF/I34DYG7Y/FHKXIIFI34DYG7Y.jpg&filename=29b now they are locked.JPG)
Insert the nuts in the carriage holes, lifting the carriage a little bit. Place one nut in both sides of each carriage.
Place the Rods
![30a threaded rod.JPG](/proxy/?url=https://content.instructables.com/FIH/LB7B/I34DYJDY/FIHLB7BI34DYJDY.jpg&filename=30a threaded rod.JPG)
![30b.JPG](/proxy/?url=https://content.instructables.com/FVY/1PF5/I34DYJDZ/FVY1PF5I34DYJDZ.jpg&filename=30b.JPG)
![30c.JPG](/proxy/?url=https://content.instructables.com/FXZ/FX97/I34DYJE0/FXZFX97I34DYJE0.jpg&filename=30c.JPG)
![30d third rod.JPG](/proxy/?url=https://content.instructables.com/FAF/LS2G/I34DYJG4/FAFLS2GI34DYJG4.jpg&filename=30d third rod.JPG)
![30e tighten here.png](/proxy/?url=https://content.instructables.com/FO5/DFY4/I34DYJG5/FO5DFY4I34DYJG5.png&filename=30e tighten here.png)
Start on the left. Then put the middle one (165mm), and finally the right one (155mm). Tighten the three rods in the bottom trapped nuts.
Place Nuts on Top of the Rods
![31a place nut on top.JPG](/proxy/?url=https://content.instructables.com/FDE/VK2Q/I34DYKEM/FDEVK2QI34DYKEM.jpg&filename=31a place nut on top.JPG)
![31c not all the way.JPG](/proxy/?url=https://content.instructables.com/FUJ/80AL/I34DYKEO/FUJ80ALI34DYKEO.jpg&filename=31c not all the way.JPG)
Do not tighten them all the way yet.
Insert the 'teeth'
![50a place teeth.JPG](/proxy/?url=https://content.instructables.com/FDM/2LUE/I34DYLOU/FDM2LUEI34DYLOU.jpg&filename=50a place teeth.JPG)
![50b from the bottom up.JPG](/proxy/?url=https://content.instructables.com/FM5/72A7/I34DYLOV/FM572A7I34DYLOV.jpg&filename=50b from the bottom up.JPG)
![50c snap in place.JPG](/proxy/?url=https://content.instructables.com/FIE/QXGC/I34DYLOW/FIEQXGCI34DYLOW.jpg&filename=50c snap in place.JPG)
![50d bolts and nuts.JPG](/proxy/?url=https://content.instructables.com/FYT/W5JZ/I34DYLOX/FYTW5JZI34DYLOX.jpg&filename=50d bolts and nuts.JPG)
![50e insert them all.JPG](/proxy/?url=https://content.instructables.com/FMS/6PAA/I34DYLOY/FMS6PAAI34DYLOY.jpg&filename=50e insert them all.JPG)
![50f screw them after.JPG](/proxy/?url=https://content.instructables.com/FUY/9CRP/I34DYLP0/FUY9CRPI34DYLP0.jpg&filename=50f screw them after.JPG)
Insert each set of “teeth” from the bottom. You can snap them in place.
Then you'll need 18 x M3x8 bolts and 18 M3 nuts. First insert all the bolts, then fix them with the nuts.
Prepare the Bearing for the Motor
![51a.JPG](/proxy/?url=https://content.instructables.com/FV7/ZGGM/I34DYOUX/FV7ZGGMI34DYOUX.jpg&filename=51a.JPG)
![51b mount it.JPG](/proxy/?url=https://content.instructables.com/F7T/VNS1/I34DYOXG/F7TVNS1I34DYOXG.jpg&filename=51b mount it.JPG)
![51b slide it in.JPG](/proxy/?url=https://content.instructables.com/F81/1BRN/I34DYOYB/F811BRNI34DYOYB.jpg&filename=51b slide it in.JPG)
Take “bearing608_mount” and fit a 608 bearing in. Take “3030nut” and place a nut inside. Put all the parts together as indicated in the image, then slide it into the vertical (short) profile).
Assemble the Stepper Motor Holder
![52a stuff you need.JPG](/proxy/?url=https://content.instructables.com/FW5/6KHT/I34DYQOJ/FW56KHTI34DYQOJ.jpg&filename=52a stuff you need.JPG)
![52b stepper mount on top.JPG](/proxy/?url=https://content.instructables.com/FDW/YJDC/I34DYQOK/FDWYJDCI34DYQOK.jpg&filename=52b stepper mount on top.JPG)
![52c close up pulley.JPG](/proxy/?url=https://content.instructables.com/F74/2F6L/I34DYQPF/F742F6LI34DYQPF.jpg&filename=52c close up pulley.JPG)
![52d.JPG](/proxy/?url=https://content.instructables.com/FJM/D3N3/I34DYQR5/FJMD3N3I34DYQR5.jpg&filename=52d.JPG)
![52e.JPG](/proxy/?url=https://content.instructables.com/F9K/GLPH/I34DYQS3/F9KGLPHI34DYQS3.jpg&filename=52e.JPG)
Take “stepper_mount” and the stepper motor. Tight the stepper mount on top of the motor. Take the pulley and 2 M3 x 8 bolts. Insert the bolts as indicated in the third image. Take two “3030nut” and place the nuts in. You'll need this for the next step.
Place the Stepper Motor
![53a .JPG](/proxy/?url=https://content.instructables.com/FI7/1FTR/I34DYU71/FI71FTRI34DYU71.jpg&filename=53a .JPG)
![53b .JPG](/proxy/?url=https://content.instructables.com/FI1/VQTP/I34DYU74/FI1VQTPI34DYU74.jpg&filename=53b .JPG)
First insert the nuts in the profile and then catch them with the bolt.
Attach the Back Side of the Motor.
![54a.JPG](/proxy/?url=https://content.instructables.com/FB4/UW1M/I34DYW5L/FB4UW1MI34DYW5L.jpg&filename=54a.JPG)
![54c.JPG](/proxy/?url=https://content.instructables.com/F78/KDXA/I34DYW5M/F78KDXAI34DYW5M.jpg&filename=54c.JPG)
Take “stepper_mount_back” and two “3030nut” parts, with nuts inserted. Repeat the process on the other side.
Attach the Arduino
![55a.JPG](/proxy/?url=https://content.instructables.com/F3Q/2DHN/I34DYX2Q/F3Q2DHNI34DYX2Q.jpg&filename=55a.JPG)
![55b.png](/proxy/?url=https://content.instructables.com/FEG/OY9M/I34DYX4I/FEGOY9MI34DYX4I.png&filename=55b.png)
![55c.png](/proxy/?url=https://content.instructables.com/FZJ/SY6E/I34DYX5E/FZJSY6EI34DYX5E.png&filename=55c.png)
Use the part 'Arduino_mount', and two “3030nut” in which you insert nuts.
On the horizontal bar that is attached to the table, attach the Arduino mount. Place the Arduino with a couple of bolts.
Build the Arduino Shield
![56a shield empty.JPG](/proxy/?url=https://content.instructables.com/FRY/OBBC/I34DYZJQ/FRYOBBCI34DYZJQ.jpg&filename=56a shield empty.JPG)
![56b shield and components.JPG](/proxy/?url=https://content.instructables.com/F06/YELY/I34DYZKM/F06YELYI34DYZKM.jpg&filename=56b shield and components.JPG)
![56c shield soldered.JPG](/proxy/?url=https://content.instructables.com/FE0/N9BP/I34DYZLI/FE0N9BPI34DYZLI.jpg&filename=56c shield soldered.JPG)
Solder all the parts as indicated.
Place the Arduino Shield
![57a.png](/proxy/?url=https://content.instructables.com/FEH/737M/I34DZ2FW/FEH737MI34DZ2FW.png&filename=57a.png)
Plug it on top of the Arduino. Connect the 4 cables from the power supply: GND, 5V, 12V, and GND.
Connect the Arduino Shield
![58a.png](/proxy/?url=https://content.instructables.com/FW9/G440/I34DZ46P/FW9G440I34DZ46P.png&filename=58a.png)
Connect the rest of the cables as in the image: 4 servomotors, 1 encoder, 1 endstop and 1 stepper.
Prepare the Tensor - Side 1
![59a.JPG](/proxy/?url=https://content.instructables.com/FJJ/TD6C/I34DZ4ZU/FJJTD6CI34DZ4ZU.jpg&filename=59a.JPG)
Bend a wire like in the picture and fix it with the two “tensor_head” parts on one side of the tensor. You need two M3x16 bolts and nuts.
Prepare the Tensor - Side 2
![60a parts.JPG](/proxy/?url=https://content.instructables.com/F5Y/LIL2/I34DZ92O/F5YLIL2I34DZ92O.jpg&filename=60a parts.JPG)
![60b assembly.JPG](/proxy/?url=https://content.instructables.com/F8J/51QM/I34DZ92Q/F8J51QMI34DZ92Q.jpg&filename=60b assembly.JPG)
![60c more parts.png](/proxy/?url=https://content.instructables.com/FFR/GATB/I34DZ93G/FFRGATBI34DZ93G.png&filename=60c more parts.png)
![60d wax holder added.png](/proxy/?url=https://content.instructables.com/FCY/2MNW/I34DZ93H/FCY2MNWI34DZ93H.png&filename=60d wax holder added.png)
On the other side of the tensor, use 2 x M3x12 bolts and M3 nuts, the 'tensor_table_Top' and the 'tensor_table_wax'. Put them together as shown in the images.
Then add the 'wax_holder' with M3x12 bolts and nuts.
Prepare the Paraffin Block
![61a what you need.png](/proxy/?url=https://content.instructables.com/FLS/BMEO/I34DZBC6/FLSBMEOI34DZBC6.png&filename=61a what you need.png)
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You'll need a block of paraffin (or wax), the assembly you just made and a tie-wrap.
Pull the tie-wrap around the paraffin block.
Take the piece called “tensor_table_bottom” and place it at the end of the tensor.
Clamp the Paraffin Block
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Put the table in between the two flat pieces. Clamp the assembly to the table close to the knitting machine.
Thread the Machine - Part 1
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Well done, we can finally start threading!
Place the yarn on the floor, the first step is to pull it up through the paraffin donut. Then it goes through the carrier. Use a wire to pull the thread through the cross shaped bead.
Then, pass the yarn carrier in between the threaded rods. (image 4) and place the yarn carrier in the rail. Unscrew the top 2 bolts if needed (image 5). It should look like image 6.
Pass the thread through the two needle beds. Pull it carefully downwards. Attach it somewhere, for example at the clamps that hold the machine to the table.
Thread the Machine - Part 2
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Pull the wire up through the eye of the top part of the tensor.
Cut a piece of wire of 200 mm. Bend it to make an 'eye', use an M8 rod to help you get it in the right shape.
Unscrew the nut of the left threaded rod and place the bended wire. Put the nut back in place and tighten it.
Pull the thread of yarn up, and bend the tip of the wire into an 'eye' as shown in the picture.
Pass the thread through the eye. The threading is done, and you have finished the building part of making the Open Knit Machine!!!
Wiring the Motors
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The motors have to be connected to the Arduino board. Wire them up as shown in the schedule and the images.
For this and following steps: it is wise to bundle the wires together in tubes.
Downloads
Connecting the Power Supply
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The images show how to connect the cables coming from power supply to the Arduino.
For powering the machine we are using a regular computer power supply, cheap and easy to find. In order to turn it on we have to cut and connect the green and a black cable together from the 20 pin Molex connector.
Then grab any 4 pin Molex connector with red, black, black and yellow cables (5V, ground, ground, 12V) and cut them and connect them to the shield like in the image.
Downloads
Organizing the Wires
![67.jpg](/proxy/?url=https://content.instructables.com/FW2/U9LF/I3THGXO2/FW2U9LFI3THGXO2.jpg&filename=67.jpg)
Make sure the wires will not be in the way when the carriage is moving
Calibrating the Servo Motors
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First you need to calibrate the servos.
If you haven’t worked with Arduino yet, install the drivers from the Arduino website. [ http://arduino.cc/en/Guide/ArduinoLeonardoMicro?from=Guide.ArduinoLeonardo ]
Paste the following code in an Arduino sketch:
//call the Servo library
#include
//In this first block of code you are giving each servo a name.
//It is recommended to refer to their position, like front (F), back(B), //bottom(B) or top (T). The front – top motor is then called servoFT.
Servo servoFB;
Servo servoFT;
Servo servoBB;
Servo servoBT;
//Here we create variables (integers) and assign them a number,
//all the numbers that follows will change for each machine and servo.
//Two variables per servo, that means two positions: in and out.
//”in” means the arm's servo moves into working position and
//”out” means the arm is not in working position.
//the number refers to the angle position of the arm.
int servoFB_in = 119;
int servoFB_out = 92;
int servoFT_in = 54;
int servoFT_out = 160;
int servoBB_in = 67;
int servoBB_out = 100;
int servoBT_in = 88;
int servoBT_out = 150;
void setup()
{
//here we indicate in which pin is connected each servo.
servoFB.attach(7); //this means that servoFB is connected to pin 7
servoFT.attach(8);
servoBB.attach(9);
servoBT.attach(10);
}
void loop()
{
//we use the variables created before so we don't have to be using numbers here
//this way we just work on the above part of the code making it easier.
servoFB.write(servoFB_in);
servoFT.write(servoFT_in);
servoBB.write(servoBB_in);
servoBT.write(servoBT_in);
//we use a delay of 3 seconds to see what the motor does,
//the delay allow us to see what the motor does before it starts moving again
delay (3000);
servoFB.write(servoFB_out);
servoFT.write(servoFT_out);
servoBB.write(servoBB_out);
servoBT.write(servoBT_out);
//a delay of 1 second allows us to know if we are in working position or not
delay (1000);
}
Running the Code for Knitting
![69a servoBOTTOM_in.png](/proxy/?url=https://content.instructables.com/FFP/IT98/I3THH0X2/FFPIT98I3THH0X2.png&filename=69a servoBOTTOM_in.png)
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In the Arduino software, under Tools > Board, select board: Leonardo.
And select the usb port in Tools > Port
First check for errors. Sometimes the Leonardo board gives troubles uploading and gives errors, but anyway it works. Just try to go ahead (in Arduino 1.5.8 this problem is solved).
When you have uploaded the code, it's running but the motors won't move. They will move only when you switch on the power supply.
With the power supply switched on, check if the arms are going up and down to the proper position. Check the images for the right positions. Test and if they are not ok then type another angle and upload again.
Check the images for the position “servoXB_in”, “servoXB_out”, “servoXT_in” and “servoXT_out”
X stands for Front (F) or Back (B), same position in the front and the back needle bed for both bottom and top servos.
Preparing for Knitting
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Use a fine wax coated yarn on a cone for machine knitting. Usually the the lighter the colour of the yarn, the smoother it is.
Pass the yarn through every other needle in the front needle bed first. Then do the same in the back needle bed untill you get something like in the picture. Here is where you decide the width of the garment, by picking the desired amount of needles.
Place the comb like in the picture, make sure that every hook/paper clip is grabing the thread in the spaces between two needles. The hook doesn't have to grab the thread that is not in between needles.
Knitting
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Download the file from GitHub:
https://github.com/g3rard/OpenKnit/tree/master/Wal...
Once we have the comb in place the machine is ready to knit automatically. To let the machine now the width we have to uncomment the following line to print the encoder value on the Serial Monitor:
//Serial.println(encoderValue);
Then we introduce the value in both conditionals in the front bed (needleBed = 1) and the back needle bed (needleBed = 2)
The variable numberRows indicates the length of the garment. A row is equal to the movement of the carriage back and forth from homing position once
The machine is now ready to knit by itself.
In case the carriage gets stuck it could be the wire tension is not good. Tension of the thread is crucial. A lot depends on the material of the tensor. A real piano string works well and can be bought at a piano shop or hardware store, in this case a carbon fiber stick was used.