8020 Drop In Twist Lock Nut

thingiverse

These few features are designed to make it easier to create widgets to be used in standard 8020 extruded aluminum slots. My specific setup was a 4040 profile which had a 10mm t-slot, so it fits best with that. Everything is customizable, down to the radius of parts, lengths, channel depth and all that. The file RightTwistDiskNut.stl is meant to be used if you have something physical you can simply glue to one of these nuts, and be done with it. The file RightTwistChannelNut.stl is designed to be used if you are trying to create a derivative part that integrates the locking nut into the design directly. This part is centered at the origin (0,0,0), with a little bit sticking up, so that if you lay a model atop it at the origin, they should union up nicely without any gap. I print them at .2mm layer height with support for the overhangs, and 100% infill. You could probably get away with less infill, but really, the part is small enough that it wouldn't make much difference. Although these are good for light duty, I would not place much load on them for fear of delamination. If you want to go for more strength, you could split it in half vertically, print two halves flat against the build plate, then glue them together and see how that goes. I use a public domain license because nothing else makes sense unless I'm trying to sell it. Print Settings Printer Brand: Type A Machines Printer: Type A Machines 2015 Series 1 Rafts: Doesn't Matter Supports: Yes Resolution: .2mm Infill: 100% How I Designed This Using OpenScad. Took measurements of the typical 8020 channel, with a 10mm channel gap. The thing was designed to be mashed up in two different ways. The first is to take the channel lock .stl, and combine it with whatever part you need to attach to it. The other is to take the disk lock, and glue whatever you want to the flat of that. So, mesh by design or mesh by glue.