The pattern is called knurled.

-Brian
Knurl, knurling...

There are some Rhino knurl links.

MoI Cylinder, Helix, sweep desired profile, say rounded triangle, array, boolean...
- B

Make a "Flat" one then use the Flow function for "project" on any target volume's surface! ;)

Will work of course also with start "surfaces","volumes" ! ;)

Hi andrzejgdula, generally something like that is better to do as a texture map or shader inside of a rendering program rather than modeled as actual geometry.

If you did want to model it then probably building a flat pattern with some sweeps and then using Flow like Pilou shows above would be the easiest way. There is some more information on Flow here:
https://moi3d.com/4.0/docs/moi_command_reference8.htm#flow

- Michael

Here is a machinist type reference, likely with much more information than desired :-)

http://www.reed-machinery.com/wp-content/uploads/2019/04/knurls-and-knurling-tech-data-master.pdf

I think that if a person is going to boolean away the "grooves", that their size must match up with the circumference, to avoid a discontinuity...

- Brian

It looks like some of the tools move the metal, rather than machine it away...(probably not a desired CAD method.)

No more time to play today.

Something I was working on in the Node Editor a while back.

Hi,
try this.
Create star shape in custom mode and extrude.
Add a twist then mirror object and boolean union.
Cheers
Barry

Hi all.



https://yadi.sk/d/XmSJGQKFSs1nhw