M4 (4mm x 60mm) Screws

Normally don't. Really there is no way that these are better or even close to a metal screws. But sometimes it's good to have options. I was at home on a weekend and really wanted to make a project come to life so there you go I created these M4 screws.

They worked better than I expected so I am sharing the model. 

Files:

• m4_screw_trial_60mm_v2.f3d: If you want to play with the length, partial  etc be my guest.
• m4_screw_60mm_v2_full_length.stl (The fully threaded version.)
• m4_screw_60mm_v2_partial.stl (Partially threaded version.)
• m4screw_v2_prusaslicer.3mf (This is my prusaslicer settings for petg.
• m4_screws_v3x12.bgcode (12 partially threaded m4x60mm screws with PETG.)

The most important part of the slicing I guess were:

• The profile is 0.15mm STRUCTURAL and then some modifications as follows:
• enabling ironing, ironing type: all top surfaces
• decreasing the speed, to (in ironing) flow rate: %10
• spaces between ironing passes: 0.1mm
• fill density %90

Only two things I would change: 1) The print orientation (if you have time print 90 degrees so it can ben much stronger mechanically.)

The Z seam is quite visibly spiraling on the thread I would change that.


The reason why I printed partially is because, the more thread you create the more problem you might face, and I only needed that part threaded so I didn't waste time, and increase the risk of failing.