Learn Thread Milling Techniques!

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[@Aaron-bo8mz]

Get this man a new headset !!!! lol. Love the videos and keep them coming but the audio could be better.

[@stevenwylie7588]

Why can't I do thread milling using G41 and no BobCad-Cam offset. Threadmill tool is 10mm Dia solid carbide doing a M12 thread, it crashes into the side of the hole on the lead in. It's worse if you are side milling multi cuts to thread depth. Machining from bottom to top. I am working on version 34.

[@Aaron-bo8mz]

Im not positive but it sounds like you only turned on machine comp. In that situation you need to have a proper lead in and lead out with more than the tool diameter to turn on and off cutter comp in a straight line move. If you use machine and system compensation you dont have to worry about this and you just adjust tool wear at the machine to comp the tool in.

[@stevenwylie7588]

Sorry Aaron-bo8mz, The problem is that if I use just G41 (machine offset) without bobcads software compensation the tool crashes in to the side of the hole. Every CNC machine I have ever used, (and there are a lot of different makes with different controls) allows either in their threadmill cycles or by programming manually using G-Code this works fine. But BobCad won't even do this. Going back to how you suggested doing threadmilling you have your tool diameter/radius offset on the machine set to zero, which is totally wrong in so many way.