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A Few Bits for Emmett's Minimalistic Mk8 replacement

by aubenc, published

A Few Bits for Emmett's Minimalistic Mk8 replacement by aubenc Oct 15, 2012

Description

I wrote this little headache-style OpenSCAD because I didn't have the right springs but a few ones from these:

reprapworld.com/?products_details&products_id=228&cPath=1591_1618

(9 coils of 1mm wire diameter for a total lenght of 25mm with an 10mm OD and 8mm, ID)

Bearings were also an issue, the only ones I had where some scavenged from old milling cutting tools (5x9.5x3.2 or something like).

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Instructions

Unfortunatelly, there's quite some work after printing, check out the PDF for the details.

2x Flat Head Machine Screws are required for each spring I used M3x10mm, a little bit longer should be also ok.

For the bearing I also used another M3x10mm and due to the dimensions of those bearings I found, I also used 2x M3 washers (not to eliminate but to decrease the gap up to a minimum.

You shouldn't need the tubes/bushings/shells/whatever if you use the right bearings.

Do not force anything* or you'll end up breaking it, use the OpenSCAD (full of parameters) if something doesn't fit.

(*) The only place where force MUST carefully be done is to mount the springs.

The STL available for download are arranged in sets for 1 or 2 extruders (there's no left and right here).

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