Brass Bushing for Prusa Mendel by Spacexula

Brass Bushing for Prusa Mendel

Spacexula

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Published on February 1, 2011

Description

Non PLA bushings for Prusa Mendel

Instructions

Buy these brass bushings
mcmaster.com/#6391k163

or

If you want to be really adventurous
One of these two PTFE tubes (have not tried, but PTFE is inbound :)

mcmaster.com/#5033k34
mcmaster.com/#52335k38

Drill out to 8.2mm for good fit on 5/16 drill rod

coat in 2 part epoxy

insert in holder

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BenJackson on March 18, 2011 said:

These are way too small for the bushings I have (same mcmaster p/n). After editing the git Prusa pla-bushings.scad to make some I find I get almost exactly r=6mm after some test prints. Peeking in the .HEEKS source (I don't have heekscad installed) I see what looks like a 6mm radius in the source to these, so I'm not sure why the dramatic difference. Perhaps the uploaded STL does not match the .HEEKS?

Spacexula on March 18, 2011 said:

Nope these are 7/16 od for the stl and heeks. Don't know what's up with yours

Anonymous on February 13, 2011 said:

Can you publish this part for the Prusa mendel metric method, and also the Brass Bushing measurements?

Thanks Ahead.

Linkreincarnate on February 5, 2011 said:

These do not fit the SAE version. You need something to fit a 3/8ths rod

Spacexula on February 5, 2011 said:

These fit SAE mendel. what are you talking about Link?

Anonymous on February 5, 2011 said:

What do you mean? I am using them on 5/16 rod right now, they fit the SAE version.

SAE version uses 5/16 rod because it's close to 8mm.

DarkerMark on February 2, 2011 said:

I actually use brass bushings myself, you can just clip them into the old bushings with or without glue. Mine work fine on the X axis, but somtimes bindes on the the y axis, so I had to exchange the y axis to drilled out ptfe.