Vectric Customer

I have been scratching my head trying to figure out how to model this in Vcarve. In the attached picture are images of the part I want to create. The part has a 5/8 x 4 tpi acme thread inside the cylinder. I am hoping someone can send me in the right direction to get this one done.

VCarve doesn't have the modeling capabilities for this. SolidWorks might be better suited for this type of modeling.

you may also want to consider bits with an ACME (or near ACME) profile - side cutter for the inside of the nuts, and end mills for threads on a 4th axis. E.g., https://www.carbideanddiamondtooling.co ... .Series.35 and https://www.whitneytool.com/Product.aspx?ID=5536 by way of examples.

Using the cutters that bobtail linked to is what you need.

You cannot model that in V-Carve or for that matter even in Aspire to my knowledge.

I think there is a threading gadget somewhere, but I don't know where.

I have never tried it, but I am pretty sure this would work.

It's a pretty easy combination of x-y motions Either G2 or G3 with a Z added in for the pitch.
It's not something in Vectric - it is straight G-Code.

I will play a little tonight on my machine.

Also, Paul Rowntree's gadget works for the internal threads, and for short (at least with the z capacity on my machine) external threads. On this forum generally there are comments on threading using rotary, if memory serves one such author was/is Ger21. And the method was simple g-code in Mach3.