Aluminum 3DPrintMi - 3DPrinter Assembly Guide
by gyronictonic in Workshop > 3D Printing
9382 Views, 85 Favorites, 0 Comments
Aluminum 3DPrintMi - 3DPrinter Assembly Guide

Aluminum 3DPrintMi is an open source, Reprap 3D Printer and the next iteration of the original 3DPrintMi. As part of the Reprap movement, it has the ability to self replicate by printing a portion of itself and assembled together with fasteners.
For more information, please visit the links listed below:
Summary
After building the original 3DPrintMi, I continued to make improvements in an effort to reduce cost and further increase the ease of assembly. The Aluminum 3DPrintMi retains a few sub-components from the original design but with a few changes. The frame was redesigned using aluminum extrusion 2020s, significantly reducing assembly time, part count, and overall cost per unit. To improve the user experience in operating the 3DPrintMi, an induction probe was added into the final design, streamlining the bed leveling process. After printing 1000+ hours with the Aluminum 3DPrintMI and listening to other 3DPrintMi users, I have determined that it's current state is ready for release and, as usual, open source and free for the public. Enjoy the build!
Getting Started
This guide will provide you the step-by-step instructions on how to assemble the printer's frame, assuming that the user has already pre-assembled the electronics before hand. I highly recommend you review the pictorial guide to get a good sense of what to expect. The pictures are self explanatory and the written instructions are there to aid the assembly.
Getting Started - Review Bill of Material and Collect Your Tools

Bill of Material
- Download and review the Bill of Materials
- To acquire the printed parts files, download here.
Before you start buying the materials, you will need to complete the BOM by selecting the desired selections based on your preferable budget, setup and convenience in sourcing the parts. The options are highlighted in orange and the parts will auto-update the price and source link so take your time selecting your material.
Sourcing the printed parts may be a bit tricky since you will have to search around for someone or someplace with a 3D Printer. Look around if there's a local Hackerspace nearby, most likely they have 3D Printers that you can use or pay someone to print them for you. If you can't find anyone, PM me and I can work something out.
Tools
- Digital Caliper
- Wire cutter (to cut zip ties)
- Needle nose pliers
- Slip joint pliers
- 2.5mm/3/32" Hex screw or a thin Phillip screwdriver (depends what kind of M3 screws you use)
- Reaming tool (to enlarge holes if part quality is low)
Know You Printed Parts


























These are the parts that make up the printer. They are ready to be downloaded and printed on any 3d printer that has a build area of at least 152mm x 152mm (6" x 6"). Refer to the BOM to see the number of printed parts needed.
The Printed parts are listed as follows:
- Y End Motor_AL
- Y End Idler_AL
- Y Carriage_A_Ver.2
- Y Carriage_B_Ver.2
- X End Motor
- X End Idler
- X Carriage
- Extruder mount
- 2020 Corner Brace
- Z Motor Housing_A
- Z Motor Housing_B
- Bottom Z Rod Brace
- Z Coupling
- Top Z Rod Stabilizer_A
- Top Z Rod Stabilizer_B
- Top Z Rod Brace
- Endstop mount
- Knob
- Y Carriage Extender_A
- Y Carriage Extender_B
- Spool Roller_A
- Spool Roller_B
- Filament Feed Guide
- Induction Probe
- Blower Fan Duct
- Blower Fan Holder
Sub-assembly - 2020 Corner Brace



Total: 14
Parts
- 13 - 2020 Corner Brace
- 26 - M3 x 10mm
- 26 - M3 T-Nut
Notes
- Do not tighten, leave it loosely fit
- Some T-Nuts will need to be taken off the corner braces and installed into the frame
Downloads
Sub-assembly - Endstop Mount




Total: 2
Parts
- 2 - Endstop Mount
- 2 - M3 Hex nut
Notes
- Use slip joint pliers to insert M3 Hex nuts
Downloads
Sub-assembly - Knob


Total: 8
Parts
- 8 - Knob
- 8 - M3 Hex Nut
Notes
- Use slip joint pliers to insert M3 Hex nuts
Downloads
Sub-assembly - X Carriage





Parts
- 1 - X Carriage
- 1 - Extruder Mount
- 6 - M3 Hex Nut
- 4 - M3 x 25mm
- 3 - LM8UU (Optional to install now, can wait until later on)
Notes
-
Use slip joint pliers to insert M3 Hex nuts
Downloads
Sub-assembly - Z Motor Housing














Total: 2
Parts
- 2 - Z Motor Housing A & B
- 12 - Square Nuts
- 2 - Bottom Z Rod Brace
- 8 - M3 x 18mm
- 16 - M3 x 10mm
- 2 - Nema17 Motor
- 2 - Vinyl tubing
- 8 - M3 Hex Nut
- 8 - M3 Washer
Notes
- Use slip joint pliers to insert M3 Hex nuts
- Skip the Nema17 Motor installation until the frame assembly
Downloads
Sub-assembly - X End Motor






Parts
- 1 - X End Motor
- 2 - LM8UU
- 1 - GT2 16 teeth
- 1 - Nema17 Motor
- 4 - M3 x 10mm
- 2 - Zip Ties
Notes
- Do not press fit the M8 Hex Nut yet, it will go on the threaded Z rod
- Use Zip Ties to secure LM8UU Bearings
Downloads
Sub-assembly - X End Idler






Parts
- 1 - Y End Motor
- 2 - LM8UU
- 2 - F608ZZ Flanged Ball Bearing
- 1 - M8 x 35mm Cap Screw
- 1 - M8 Hex Nut
- 2 - Zip Ties
Notes
- Do not press fit the M8 Hex Nut yet, it will go on the threaded Z rod
- Use Zip Ties to secure LM8UU Bearings
Downloads
Sub-assembly - Y End Idler







Parts
- 1 - Y End Idler
- 4 - M3 x 10mm
- 2 - M3 x 18mm
- 4 - Square Nuts
- 2 - F608ZZ Flanged Ball Bearing
- 1 - M8 x 35mm Cap Screw
- 2 - M8 Washer
- 1 - M8 Hex Nut
- 2 - M3 Hex Nut
Downloads
Sub-assembly - Y End Motor






Parts
- 1 - Y End Motor
- 7 - M3 x 10mm
- 2 - M3 x 18mm
- 1 - Nema17 Motor
- 1 - GT2 16 teeth pulley
- 4 - Square Nuts
- 2 - M3 Hex Nut
Downloads
Sub-assembly - Z Coupling




Total: 2
Parts
- 2 - Z Coupling
- 8 - M3 Hex Nut
- 8 - M3 x 18mm
- 8 - M3 Washer
Notes
Install 8mm lead screw during frame assembly
Downloads
Sub-assembly - Top Z Stabilizer








Total: 2
Parts
- 2 - Top Z Stabilizer (A & B)
- 2 - Top Z Rod Brace
- 4 - M3 Washer
- 3 - M3 x 10mm
- 4 - Square Nuts
- 4 - M3 x 18mm
- 4 - M3 Hex Nut
Downloads
Sub-assembly - Spool Holder






Total: 2
Parts
- 2- Spool Holder (A & B)
- 4 - M3 x 10mm
- 4 - Square Nuts
- 8 - F608ZZ Flanged Ball Bearing
- 4 - M8 x 35mm Cap Screw
- 4 - M8 Hex Nut
- 4 - M8 Washer
Downloads
Sub-assembly - Filament Guide Holder


Parts
- 1 - Filament Guide Holder
- 1 - M3 x 10mm
- 1 - Square Nuts
Downloads
Subassembly - Y Carriage
















Parts
- 1 - Y Carriage A
- 1 - Y Carriage B
- 2 - Y Carriage Extender A
- 2 - Y Carriage Extender B
- 8 - Sub-assembled Knob
- 4 - LM8UU
- 6 - M6 Thin Hex Nut
- 2 - M6 x 110mm Cap Screw
- 4 - M6 Washer
- 12 - M3 Hex Nut
- 12 - M3 Washer
- 8 - M3 x 18mm
- 4 - M3 x 25mm
- 1 - 200 x 200mm HeatBed
- 1 - 200 x 200mm Glass
- 1 - 200 x 200mm 28 gauge galvanized steel sheet
Notes
- Use 28 gauge galvanized steel sheet for Induction Probe setup
- Drill out hole with 1/4" drill bit If using 1/4" Cap Screw instead of M6
Sub-assembly - Blower Fan






Parts
- 1- Blower Fan Holder
- 1- Blower Fan Duct
- 1 - Blower Fan
- 2 - M3 x 25mm
- 2 - M3 Hex Nut
- 1 - M3 x 10mm
Downloads
Sub-assembly - Induction Sensor





Parts
- 1 - Induction sensor (SN04-N probe)
- 1 - Induction Sensor Holder
- 2 - M3 Hex Nut
- 2 - M3 x 18mm
Downloads
Assembly - Framing Y & Z Axis






Parts
- 3 - Aluminum Extrusion 2020
- 4 - Sub-assembled Corner Brace
Assembly - Framing the Y Axis








- 9 - Square Nuts
- 1 - Sub-assembled Corner Brace
Notes
Use Square Nuts on the Z Motor Mount
Assembly - Z Motor Mount












Parts
- 2 - Sub-assembled Z Motor Mount
- 1 - Sub-assembled Corner Brace
- 1 - Aluminum Extrusion 2020
Notes
Remove Nema17 Motors from the Z Motor Mount in order to tighten screws
Assembly - Y Ends






Parts
- 1 - Sub-assembled Y Idler
- 1 - Sub-assembled Y Motor
Assembly - Top Z Stabilizers











Parts
- 2 - Sub-assembled Corner Brace
- 2 - Sub-assembled Top Z Brace
Assembly - X Gantry












Parts
- 1 - Sub-assembled X Carriage
- 1 - Sub-assembled X Idler
- 1 - Sub-assembled X Motor
- 4 - 8mm Smooth Rods
- 2 - Z Coupling
- 2 - M8 lead screw
- 8 - Zip Ties (Large Size)
Assembly - Y Carriage/Build Plate









Parts
- 2 - 8mm smooth rod
- 1 - Sub-assembled Y Carriage (No HBP & Glass)
Assembly - Belt Drive


Parts
- 8 - Zip ties (small size)
Assembly - X & Y Endstop




Parts
- 2 - End-stop
Notes
One end-stop for each axis (X & Y)
Assembly - MBE Extruder












http://www.thingiverse.com/thing:1236065
Downloads
Assembly - Direct Drive Vert-Xtruder











Files for the Direct Drive Vert-Xtruder available on my thingiverse page
http://www.thingiverse.com/thing:137806
The Hotend used is the E3D V6
Assembly - Spool Holders & Filament Guide





Parts
- 2 - Sub-assembled Spool Holder (A & B)
- 1 - Filament Guide Holder
- 1 - PTFE Filament Tube
Notes
Install PTFE Filament Tube and cut to length
Induction Probe Setup
Setting up the induction probe for auto-leveling will take some time. I create a step-by-step tutorial on my blog couple months back along with a list of other sources that helped me get it going. The induction probe can be replaced with a simple mechanical switch for the Z stop but once you use the auto-leveling feature, you never want to go back. Follow the blog and should have it up and running in no time.
Assembly Complete

Congratulations! You have completed assembling your very own Aluminum 3DPrintMi.
All you have to do now is hook up any available 3D Printing electronic board and there are numerous tutorials online that you can follow. Good luck and happy printing!