Ultimaker feeder upgrade
by Antiklesys, published
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I think the stress relieve hole right above the bearing is far too big... the wall thickness at this point is 0.19mm, and virtually every slicer is omitting that section, rendering the bearing holder far less solid. I would reduce this whole to something very small, to leave some wall to be printed.
can you send me the source files to adjust it a bit? perhaps the bearing i got was non-compliant. i also don't want to take it out of the machine now to measure, will do it after i print out a replacement :)
There is some support in the design that should prevent the bearing from stop spinning when the screws are tightened. In my print the bearing was fitting perfectly, what are the inner dimensions of your bearing and the outer dimensions of the cylinder that supports the bearing in the printed part?
Also I printed it with Netfabb in Ultra quality, this is due the layers have to be thin enough to print out the small height differences designed in there so that you don't have the bearing stuck problem you just described :)
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Edit: Uploaded a video of the piece mounted on the Ultimaker: youtu.be/OAo04N6xTbs
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