Parametric Spool Holder for Replicator

by clothbot, published

Parametric Spool Holder for Replicator by clothbot Oct 7, 2012


This spool holder uses a section of 5/8" copper pipe cut to length, capped with an insert to lock the spool in place.

The default STL is sized to fit the smaller spools that Voxel Factory (a relatively local to me, Montreal-based source for plastic) uses. The smaller of the spools they use has a 30mm inner hole diameter.

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  1. Print off the three parts in ABS or PLA. I sliced them with two (2) shells and 25% fill at 0.25mm layer thickness.

  2. Insert three M3 nuts into the captive nut holes in the sides of the spool holder and spool cap, and into the end of the insert.

  3. Insert two M3 set screws (e.g McMaster-Carr part 91390A097) into each of the spool holder and spool cap captive nuts.

  4. Insert one long M3 bolt (I had lots of 16mm bolts to choose from) into the outer end of the insert and spin the M3 nut on until it is just entering the top of the spreading part. Don't tighten it down until it's inserted in the copper pipe.

  5. Cut a section of 5/8" copper pipe long enough to span the depth of the spool's inner hole.

  6. Mount one end of the copper pipe in the spool holder part flush with the inner surface and tighten the set screw. The copper pipe should not come in contact with the back of the Replicator when clipped in place.

  7. Slide the spool cap onto the other end of the copper pipe and tighten the set screw.

  8. Before adding the insert piece, check that the assembly fits all the way through the core of the spool with a small amount of the cap visible above the surface. It should be resting comfortably on the plastic with a little lateral movement.

  9. Insert the insert into the copper pipe. It should be in full contact with the spool cap part plastic; if not, reposition the spool cap so no copper is visible between them.

  10. Tighten the insert bolt until the spreader firmly anchors itself inside the copper pipe. You don't want this popping off in mid-print!