Ok thanks guys.
I made it..
I used the Gear-Script. It was the simplest way to do it, and it works!!! :-)

Layerheigh 0.15mm

Here's a gear I made from an old DXF file I had on my computer.
I extruded the outline and then used the Twist tool to make the gear into a helical tooth form and this should be the same as the helix angle of the worm so as to allow the axes of the worm and wheel to be perpendicular to one another.


Martin (2).

Hi BlackBird, that's cool that it's working!

- Michael

Did Flow for the arbitrary enveloping radius, then did the twist.
Finally got it to be a solid.