Wind-Up E3D Buggy

The String just kept ripping off. If you get it to work, please post a make!

I made a tiny wind-up car.

What you need:

• Filament (should be obvious)
• a piece of thin nylon string (about 30cm long)
• a piece of rubber band (30mm x 5mm x 2mm)    
• superglue (the best glue in exsistance)
• sandpaper (20 grit is fine)
• baking soda (to make the superglue harden faster)

What to print:

• axle.3mf (while you only need two you want to print at least four as these break if you just look at them the wrong way)
• wheel.3mf (four are needed, of course)
• rubber_band_holder.3mf (couldn't think of anything to write here)
• rubber_band_protector.3mf (print as detailed as possible)

How to build:

1. Get the rubber band holder and feed the piece rubber ban through like shown in the picture
2. secure the rubber band using superglue
3. cut off the excess
4. sand it down until it's just under 9mm high
5. glue the nylon string in the notch of the rubber band protector with superglue
6. sprinkle some baking soda over it
7. put the rubber band protector under the rubber band
8. make a few knots
9. import the file buggy.3mf into your slicer and add a filament change at the last layer the hole is still open (You can find good tutorials for cura and prusaslicer online)
10. start the print
11. when the printer stops, feed the string through the small hole, put superglue on the four legs of the rubber band holder and drop it in
12. continue the print
13. put the wheels on the axles (you might have to sand the axles down a little)
14. wait for the print to finish
15. trim the string a little
16. glue the string to the side of the notch of the axle
17. press both axles into place

How to use:

1. wind up the string
2. put it on the ground
3. look at it driving away from you

Sorry for my bad english. I'm still learning.