Rotational Casting Machine (RotoCast) by Miaviator 3d model
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Rotational Casting Machine (RotoCast) by Miaviator

Rotational Casting Machine (RotoCast) by Miaviator

by Thingiverse
Last crawled date: 3 years, 1 month ago
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.
Components:
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
Hardware
2" and 3" Screws
623 Bearings or GT2 Bearings
GT2 Belt
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.

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