OpenBeam Exposed Bearing Flange

by halley, published

OpenBeam Exposed Bearing Flange by halley Feb 21, 2013
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I wanted to make an adjustable filament spool caddy, since my first two spools don't match spans. I made a simple flange for holding a common 608zz radial skate bearing in line with an OpenBeam or other t-slot extrusion. This through-bolt design uses inexpensive hardware, and should be easily printed four-at-a-time on any filament printer.



(1) Print up to four of this part.
(2) Attach the parts to OpenBeam extrusion framework as shown in the photos, flanges to the outside.
(3) I recommend a 5/16" or M8 bolt, a matching nut, and three washers with similar inner diameter.
(4) Bolt, washer, bearing, washer, this plastic part, washer, nut. The smoother side of a washer should face toward a bearing or nut.
(5) Rest your filament spool on top of the washers.
(6) Attach rubber sticky feet or Sugru pads to avoid sliding on the table top.

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I like your design - and I've built one like it. The only real complaint I have is that as the spools get empty, they get light, and they end up getting pulled off of the caddy.

I've resorted to some rubber bands and a rod though the middle hole that really doesn't make it look very nice.

Maybe a lead pipe with flanges would not need any rubber bands?