Lm8uu X Carriage with Fan Mount for Prusa Mendel

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Published on October 13, 2011

Description

Slight change to Greg's excellent x-carriage.

1, I broke at least 2 x-carriages while trying to insert the bearings (I didn't warm up the holders first) So i change the holder design a bit to let the bearings slide in easily, then i added 2 build-in ziptie channels to the holder themselves.

2. Added a belt_socket_offset variable to allow changes to belt-socket alignment. 0 gives Greg's default which fits Prusa's new (felt branch) x-ends nicely. You may want to increase it to something like 10 (guesstimate only) if you are using the original prusa x-ends.

Instructions

The included STL fits felt branch x-ends. if you need something different, download the scad files and put them into the same directory as configuration.scad.
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This carriage is completely useless with a Budaschnozzle. Just for the record.

Will this carriage fit on my Reprap Air 2?

I am having some trouble with my current one...

Do we really need the Zippity do da ties ? over tightening the ties can cause warping.

thus misalignment

there's very little friction /force on the bearings.. else why use them?

and the weight of the extruder should hold them in place

and with just a tiny bit of trimming my LM8uu's snapped in just fine.

good und tight fit..

prusajr's file done in natural pla ;)

Nice work!

I integrated zip tie slots into greg's LM8UU holders too, but never posted anywhere. Mine have a channel on the back so the zip tie can sit flush as well as the side slots. Gives many more options for mounting extruder!

Shortening the clips is a good idea, is that parametric too? Perhaps we can f
ind some value where they still clip in and hold firmly, but aren't so prone to breaking?

i actually removed everything that clips onto the bearing.. so the bearing is held entirely by the zipties. And yes, the file is parametric.