This is a legacy device, I've uploaded all of the files used prior to moving to steel construction.
We moved this to V2 using a garage door opener and larger pulleys and a dryer belt.
V2 in action: https://youtu.be/LCR4AYFYvTU
- We then moved to V3 using a Rigid X5 cordless drill
We are currently making V4 using Steel Tubing and a variable speed motor.
I needed to make a hollow cast. I have a lot of 2X4's, PVC Pipe and 3D Printers.
Using GT2 Belts and 3D printed pulleys can have some slippage which is why there are two belts. I use a 3M spray adhesive to make the belts have more stick.
2 X 4's
QTY 4 - 25.5" Inner Axis
QTY 4 - 30.5 Outer Axis
QTY 2 - 32 Frame Bottom L/R
QTY 4 - 14.25 Frame Bottom L/R
QTY 2 - 24" Frame Upright
QTY 2 - 38" Frame front/back support
QTY 1 - 35" Frame Center
QTY 4 - 17.151300" - 24.557331" - Mitred at 54.5 degrees, for supports. This was just drawn that way, you could change sizes to use a 45 degree cut or build more of a frame to avoid angled cuts.
3D Printed Parts
QTY 2 - Rotational Pulley
QTY 2 - Stationary Pulley
QTY 4 - Corner Pulley
QTY 2 - End Cap
QTY 2 - Short End Cap
QTY 4 - Bushing
QTY 9-16 - Spacer
2" and 3" Screws
623 Bearings or GT2 Bearings
Self tap screws to screw the plastic parts onto the pipe
1 Stick or some scraps of 3/4" Schedule 40 PVC pipe
2 PVC Elbows
Staple gun (I stapled the GT2 belt to join it)
Assembly should be self explanatory.
Limit perimeters to 2 and ensure you have thin walls or gap fill turned up.
I hollowed out the pulleys to save on print time and material. Everything was printed in PLA with 25-50% infill at .24/ 3 top/ 3 bottom/2 outlines.