Post

3D printed sliding nut rails prototype - not bad, but definitely needs some kind of solution for mounting to the sides other than friction fit, and either channels for the nuts or a little nut holder tool to go with it. VERY fiddly to get fully assembled, but I think could be sturdy when full.

Depthbuffer

@depthbuffer.bsky.social

Trouble is I'm not sure how to add an end mount without dealing with bridging/supports. The big plus of this at the moment is both parts are printed flat on the bed lengthwise, with perimeters making the screw holes quite strong, and just a 45 degree overhang for the joining groove, no supports.

23/9/26, 9:43 am0 reposts1 like

Depthbuffer

@depthbuffer.bsky.social

This other design I downloaded a while ago has the long face going front to back, not vertically along the module case. Advantage: can print it deep and add captive nuts for mounting to the ends securely, disadvantages: the two halves flex and the sliding nuts fall in

Depthbuffer

@depthbuffer.bsky.social

I somehow need the best of both worlds. I like my idea of channels open to the outside of the case to add nuts arbitrarily, and I like that there is no way for the nuts to fall inside the assembly, but I need to somehow add mounting points and I don't really know how.

Depthbuffer

@depthbuffer.bsky.social

There is physical space in the case for hardware, but currently the back face of the rail you're looking at here is that piece's first layer. Being flat on the bed is how the holes come out so clean but if course you can't print "below the bed". Little L-brackets maybe?