by jridley, published

Y-Undercarriage by jridley Sep 8, 2012
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Y-Undercarriage by jridley is licensed under the Creative Commons - Attribution license.

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This is identical to thing # 28764 except that it uses my new zip tie retained LM8UU holders.

I have not actually printed one of these yet but I have used the new holder in other objects so there should be no problem.

The included STL is for SAE 6-32 hardware. The SCAD files can be modified for other hardware sizes.


Instructions (same as previous thing)

Use a drill to clear the bridge layer in the belt clamp nut traps.

Position over your print bed and drill appropriate holes in the bed to match the four mounting holes. I use 5/8" sheet metal screws to go into 1/2" plywood. Secure temporarily using two of these holes, then drill CLEARANCE holes into the bed for the four belt clamp screws - this gives room for the belt clamp screws to go past the "bottom" of the print and slightly into the bed when you clamp the belt.

Now remove the sled from the bed again, place nuts in the belt clamp nut traps and replace and fasten the assembly to the bed.

The belt on one side is fastened by the simple cap with teeth.

On the other side, it goes through the channel, the tightener (with screw, captive nut and ram) goes on top of that with the teeth facing up, then the plain cap goes on top of that.

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