Slim Anti-Tangle Spool Holder

Fits two #MasterSpool into one IKEA 365+ (10.6l)

3D printer parts and enhancements


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Why I did this:

  • overfill their #MasterSpool refills to 850g (they still deliver the best refills I know, though).
  • A freshly refilled spool thus is in constant danger of filament jumping over the edges.
  • Both Mark Rehorst and Graham Watson have already designed spool holders, that could prevent it. (I had to invert Mark's concave roller concept, though - as my spools are overfilled.)
  • IKEA now has cheap, airtight containers (365+ 10.6l / 11 qt, No. 103.930.64, the Lid is No. 303.930.63).
  • The IKEA container can accommodate two #MasterSpools or regular 750g ones (e.g. the Häfner SD200K).
  • Squeezing those two spool, held by individual Anti-Tangle Spool-Holders into one of those 365+ Dryboxes required a new design.


Mark Rehorst

Graham Watson

A. Ozen / Sp4wN

...and of course RichRap:

Materials and methods

For dual spool holders you'll need...

1x IKEA 365+ container (103.930.64) with lid (303.930.63)
1x Baseplate, e.g. thin plywood - 258 x 150 mm² with chamfered corners
1x M8 threaded rod - they come in meters where I live
4x M8 nut and preferably some threadlocker ("Loctite")
2x M8 washer
16x 625ZZ ball bearing
...and a 9mm drill in case you want to use the same two E3Dv5 Bowden couplings I used.

Printed parts:
8x "Roller" (try out how the bearing fits into the bore)
8x "Spacer" (try out how firmly they clip into the arms)
4x "Arm 1"
4x "Arm 2"
2x "Full Base" OR 4x "Bearing Block"



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