I created a new single tooth threading tool in my tool library. Do I have something wrong with the parameters or why the shaft (yellow part of it) is so thick? Thread pitch should have some affect to this, right?
If I change the "Number of teeth" to 2, the tool does not look good at all:
With this kind of tool model it is very difficult to see (in simulation) whether the tool shaft hits the stock or not.
Br. Jari
@jari.peltola The yellow part of the tool is the flute length which I think in your case maybe too long.
Can you share the cutter you are trying to create?
Thanks
Christopher CooperChanging the flute length does not seem to make any difference. However, increasing the tool diameter to 12mm makes enough clearence to the shaft. So there seems to be "buildin" limitation/rule for thread tools, like "tool diameter must be at least six times the pitch" (I made this example with two teeth only because it shows better the tool core/shaft size).
I made a workaroud to this problem by drawing the tool profile myself. This is what my tool looks like:
Br. Jari
@jari.peltola It is good that you managed to work around the problem with form tools. I do believe this can be acheived using the threadmill tool but as there is no necked diameter I think that you need to use the shaft tab to complete the tool.
Christopher CooperI tried to tune the shaft settings but to me it looks more like "cosmetic" changes: I can add the tapered part between the shaft and neck. Result is, well, not very practical in this case. The minor diameter of the cone is the size what the tool neck should be.
Actually, there is no need for the neck diameter parameter (explicit value) because the pitch value defines it already: tool tip is a simple equilateral triangle which side length is the pitch value. Calculating the triangle height is just trigonometric and tool neck is shaft - 2 x triangleheight.
Br. Jari
