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CaptainObvious

Hammer nut for 20x20 extrusion.

by CaptainObvious Feb 9, 2014
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Thank you for a very handy item :)

Hello my friend. I'm new here and I'm learning. What is the length of the M3 screws you used in your project? Are the M5 bolts and nuts also suitable for aluminum 2020?
Congratulations on the project. Greetings from Brazil.

The length of the screws depend on what you are screwing, this nut is for M5 screws only.
Obrigado. =)

Obrigado meu amigo. Abraços ;) ;)

Hello my friend. I'm new here and I'm learning. What is the length of the M3 screws you used in your project? Are the M5 bolts and nuts also suitable for aluminum 2020?
Congratulations on the project. Greetings from Brazil.

When I printed mine there were no threads :(

No, there are no threads on the model, a M3 thread is too small to be printed directly.
The idea is that the screw makes the threads as it's screwed in for the first time. Either that or use a tap to cut the threads.

They don't grip the screw tightly enough, so tightening the screw just raises the nut out of the t-slot. I printed at 0.2mm layer height, 100% infill, w/ pla

Excellent. Thanks :)

This is great! I used it to refit my z-stop without taking half the frame apart. Thanks!

fyi you can run a 9/64 drill bit backwards to adapt this to M4 with no other modifications. Thanks for this design, very helpful.

Thanks for the tip, I haven't tried an M4 with this although on that case I'd suggest to keep any loads on the light side.

True enough about the weight. I use it for cable management, mounting power switches and such.

How did you create this?

I ask because the geometry doesn't seem to be very friendly within Openscad (I cannot export its geometry). If you have an updated version and would care to share again that would be wonderful.

As always, thanks for uploading to begin with!

I modeled it in 3Ds Max, it's not a CAD object. If you tell me what is it that you want to modify I can do it for you... I just have to find the original file.

No worries man; I think there is a polygon or two that are messing up openscad. I'll get it figured out and if it works nicely I can pastebin the openscad script for you to have! Thanks