In CAD, knurls are similar to threads in every aspect: the precise 3D representation need intensive computation and they appear in a simpler form in the drawings. Cosmetic threads are a solution. Cosmetic knurls could be a solution too.
There are several standards: DIN 82 and ISO 13444 in the metric world.
The most used are the axial and crossed 30° types. The depth can vary a lot but this should be left for the drawing.
In niche industries like horology, not only cylinders and planar surfaces are knurled: toroidal (convex and concave) and conical surfaces can be knurled as well. Knurling rollers are sold in a wide variety of shapes.
In CAD, knurls are similar to threads in every aspect: the precise 3D representation need intensive computation and they appear in a simpler form in the drawings. Cosmetic threads are a solution. Cosmetic knurls could be a solution too.
There are several standards: DIN 82 and ISO 13444 in the metric world.
The most used are the axial and crossed 30° types. The depth can vary a lot but this should be left for the drawing.
In niche industries like horology, not only cylinders and planar surfaces are knurled: toroidal (convex and concave) and conical surfaces can be knurled as well. Knurling rollers are sold in a wide variety of shapes.