threading¶

Screw-thread generators — ISO, ACME, trapezoidal, buttress, and square threads for both rods and nuts, with multi-start and left-handed options.

iso_threaded_rod(d=20, l=30, pitch=2.5, fa=6, fs=1).shape()interactive · drag to orbit

rendered & measured

watertight

Every thread form builds the rod (core + helical thread) as one manifold polyhedron — an angular sweep of the thread profile stacked over every turn — so the result is always watertight. Nuts are a hex/square block with a matching threaded hole cut by a tap.

variants · click to load

6,172triangles

8,055.3mm³ volume

20×20×30bbox mm

>>> iso_threaded_rod(d=20, l=30, pitch=2.5, fa=6, fs=1).shape()

25 tests