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josefprusa / PrusaMendel

My own RepRap Mendel redesign
prusa-mendel
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Weak Z Coupling #29

Closed pawl closed 12 years ago

pawl commented 12 years ago

I see a lot of people (including myself) having trouble with the Z Coupling in this repository cracking due to stress.

Maybe we should consider a design like Nopheads?: http://www.thingiverse.com/thing:9622

It looks like Nophead's design is the one PrusaJr prefers: http://www.flickr.com/photos/prusajr/6045851714/in/photostream/lightbox/

brad commented 12 years ago

Agreed, nophead's couplings work incredibly well. I went through several of the default couplings and they all broke. I never worry about my couplings breaking now.

pawl commented 12 years ago

I wish I gave them a try before I opted for drastic measures.

Aluminum Z Coupling (from Ebay): http://4.bp.blogspot.com/-p_TQJDYvM00/TqpZ1Kh7hiI/AAAAAAAAABQ/rTbXFCHLVAs/s1600/IMAG0232.jpg

pawl commented 12 years ago

This was replaced in Iteration 2. Fixed