RibThreads

[tolap74]

There is an error in the parameter:
"M3": rib_diameter=10. => rib_diameter=1.0

I tested it with the M2.5 using its parameters and it works:
"M2.5": RibParameters(name="M2.5", normative=2.5, core_diameter=2.02, core_bore=2.1, entrance_depth=0.5, outer_diameter=2.9, rib_engagement=0.15, rib_diameter=0.75)

However, I've noticed that with 5 Ribs, the screw holds better.
Is it possible to specify the number of Ribs as a parameter ?

[Rahix]

The M3 parameter is not a mistake, this is intentional: 81fa0e8

I think for M2.5, it will also be better to choose this kind of "flat" ribs approach to keep them well printable.

Is it possible to specify the number of Ribs as a parameter?

Right now it isn't but it should be possible to add that. However, using more than 3 ribs seems mostly sensible for very large diameters, I would assume?

[tolap74]

For me, it's actually the opposite, because the thread area is small (e.g., M2.5 0.45mm pitch).
So, to increase this area, you need more ribs.

I'm going to run some tests with rib_diameter=10 for M2.5 with 3 and 5 ribs.