Rubber Band Gun
![IMG_20190101_190522.jpg](/proxy/?url=https://content.instructables.com/FNQ/YWXK/JQCO9YPX/FNQYWXKJQCO9YPX.jpg&filename=IMG_20190101_190522.jpg)
![RUBBER BAND Gun](/proxy/?url=https://content.instructables.com/FMD/MAQH/JQCOD32U/FMDMAQHJQCOD32U.jpg&filename=RUBBER BAND Gun)
I came across "Slivki Show" on youtube, where the host shared "10 awesome gadgets to buy from Aliexpress"
I was really amazed by few for these gadgets, one of them was a rubber band gun. I did not know of such gadget existed and wanted to have it... Ordering from Aliexpress would mean to wait for few weeks and I did not want to wait. The construction looked simple, so I did an extensive research for few hours and decided to make one..
In this instructable, I will share how I made one using scrap wood, Jig saw and sandpaper
Please vote for me
What Do We Need ?
![IMG_20190101_190922.jpg](/proxy/?url=https://content.instructables.com/F8N/Q9IB/JQCO9Z0U/F8NQ9IBJQCO9Z0U.jpg&filename=IMG_20190101_190922.jpg)
Materials and Tools
- 5 mm plywood
- 10 mm plywood
- Spring from old pen
- Tooth picks
- PVA glue / Fevicol
- G Clamps
- Sandpaper
- Nail filer ( borrowed from my wife's drawer)
- Jig Saw
- Screws
Design
![IMG_20190101_190708.jpg](/proxy/?url=https://content.instructables.com/FLR/ZI5D/JQCO9Z30/FLRZI5DJQCO9Z30.jpg&filename=IMG_20190101_190708.jpg)
![IMG_20190101_190741.jpg](/proxy/?url=https://content.instructables.com/F1A/X44R/JQCO9Z2G/F1AX44RJQCO9Z2G.jpg&filename=IMG_20190101_190741.jpg)
![IMG_20190101_190809.jpg](/proxy/?url=https://content.instructables.com/FW1/Z7ZM/JQCO9Z1U/FW1Z7ZMJQCO9Z1U.jpg&filename=IMG_20190101_190809.jpg)
![IMG_20190101_190841.jpg](/proxy/?url=https://content.instructables.com/FU7/V2AU/JQCO9Z1C/FU7V2AUJQCO9Z1C.jpg&filename=IMG_20190101_190841.jpg)
- My Design is inspired by RBGUNS.com... at least the overall logic
- I am not using any software here so sharing my hand drawings
- Key changes
- Shape
- Dimensions
- Trigger is spring based not rubber band
- Screws for tweaking / maintenance
- In short changed the everything design
- Why did I make my own design
- I did not want to cut multiple plywood and stick them, as I am not skilled enough
- I had just enough 5 mm and 10 mm plywood
- Mechanism
- The rubber bands are held in place using the teeth on the body
- when the trigger is pressed, it pushed the rubber band outwards to skip the tooth and move to the next one
- To avoid too many skips, the trigger must also have teeth
- When the last tooth is skipped the rubber band shots off
The Body
![IMG_20190101_190946.jpg](/proxy/?url=https://content.instructables.com/FYK/E1PS/JQCO9Z0E/FYKE1PSJQCO9Z0E.jpg&filename=IMG_20190101_190946.jpg)
![IMG_20190101_191010.jpg](/proxy/?url=https://content.instructables.com/F9B/TQ1X/JQCO9YZZ/F9BTQ1XJQCO9YZZ.jpg&filename=IMG_20190101_191010.jpg)
![IMG_20190101_135724.jpg](/proxy/?url=https://content.instructables.com/FYU/8TIN/JQCO9YZK/FYU8TINJQCO9YZK.jpg&filename=IMG_20190101_135724.jpg)
![IMG_20190101_191132.jpg](/proxy/?url=https://content.instructables.com/F21/I3S1/JQCO9YU6/F21I3S1JQCO9YU6.jpg&filename=IMG_20190101_191132.jpg)
![IMG_20190101_191159.jpg](/proxy/?url=https://content.instructables.com/FTD/2CEI/JQCO9YYU/FTD2CEIJQCO9YYU.jpg&filename=IMG_20190101_191159.jpg)
- Draw the template from previous step on a A4 sheet
- paste them on the wooden planks using glue-stick
- Cut the left , right side and the middle parts of the body as shown
- Glue the middle and right side and leave to dry for 2 hours
- Screw the left side as shown, this will help us to tweak and maintain
- Sand the edges down with a 80 grit sandpaper and then 180
Trigger
![IMG_20190101_174106.jpg](/proxy/?url=https://content.instructables.com/F5Q/2L3B/JQCO9YTJ/F5Q2L3BJQCO9YTJ.jpg&filename=IMG_20190101_174106.jpg)
![IMG_20190101_191240.jpg](/proxy/?url=https://content.instructables.com/FZH/GVZ2/JQCO9YTV/FZHGVZ2JQCO9YTV.jpg&filename=IMG_20190101_191240.jpg)
![IMG_20190101_192027.jpg](/proxy/?url=https://content.instructables.com/FUU/G302/JQCO9Z86/FUUG302JQCO9Z86.jpg&filename=IMG_20190101_192027.jpg)
![IMG_20190101_191439.jpg](/proxy/?url=https://content.instructables.com/F6O/52K8/JQCO9YSR/F6O52K8JQCO9YSR.jpg&filename=IMG_20190101_191439.jpg)
![IMG_20190101_191504.jpg](/proxy/?url=https://content.instructables.com/FPZ/Y0IY/JQCO9YSM/FPZY0IYJQCO9YSM.jpg&filename=IMG_20190101_191504.jpg)
![IMG_20190101_191548.jpg](/proxy/?url=https://content.instructables.com/FBF/O3WP/JQCO9YSH/FBFO3WPJQCO9YSH.jpg&filename=IMG_20190101_191548.jpg)
- Since I didn't use any software, I had to construct the body first and then make the trigger
- Trigger needs to move back and forward without wobbling and with enough space to trigger rubber band skip teeth
- Mark the min and max teeth space as shown in the picture
- Cut the teeth in the trigger, which is offset by half of the distance between teeth
- Drill a hole from the body in to the trigger as shown
- Add a small spring to push the trigger front
- Secure using a toothpick, this avoids wobbling too
Test and Lessons
![IMG_20190101_190605.jpg](/proxy/?url=https://content.instructables.com/FVJ/FQRJ/JQCO9YSE/FVJFQRJJQCO9YSE.jpg&filename=IMG_20190101_190605.jpg)
The tests went well, I have added a video in the first step
I have shared a video
Lessons
- The trigger needs to push rubber band further by 5mm
- If you cut the teeth incorrectly you can use match sticks or popsicle sticks to correct them
- Sand the teeth on the body by 45 degree or more
- Rubber bands have to be with good elasticity, old rubber bands do not work well
- Teeths does not have to be taping, they could be just grooves, which will reduce a lot of effort
I liked making this project, please share if you have a better design that I could try out with more than 10 rubber bands