T-Nut, for 2020 profile, printable, drop in

by ttsalo, published

T-Nut, for 2020 profile, printable, drop in by ttsalo Apr 17, 2013
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A "hammer-style" printable T-nut for Misumi 2020 alu profile (commonly used in MendelMax), can be inserted into the groove from the side instead of having to slide it from the end.


Print, drill out the hole to 2.5 mm, insert into the profile, screw in a M3 machine screw. The T-nut should automatically turn 90 degrees and stop. Machine screws probably won't work with ABS (too soft), but I used polycarbonate at 300 C and holding the spool arms and more seems to be no problem at all with regular M3 screws.

Print with a brim, otherwise these will easily get knocked off by the print head.

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Can you provide the stl for the spool holder. This is exactly what I am looking for.

The spool holder is this one: http://www.thingiverse.com/thing:73412

Imporved high clearance MendelMax Spool holder for Trinity/Proto/Reprap spools (and many others)
by xochal

needs a little drilling for M3 screws. or a hot screw.

Yes. I drill out holes for M3 screws with a 2.5mm drill bit, seems to work well.