Tap Magic?

[Levansic]

Originally Posted by sanddrag

For the CNC, after extensive reading I decided on Trim, but I haven't run it yet.

I used Trim (C275) extensively and really liked it for cutting just about everything, but I can't say that I liked tapping anything using CNC machines. Rigid or soft, explicit tap cycle or directly coded; tapping is a very special challenge for NC. You really need a properly set automatic tapping head. Otherwise, you will collect a lot of broken taps, and more damaged workpieces.

For prototype work, it is much better to NC the pilot holes, and tap the threads by hand. Production is different, it takes a much larger investment of time and capital.

Back to the coolant, Trim makes the air taste sweet when it is atomized. I put this in the pile of information, I wish I didn't know, because I'm pretty sure that it isn't a good thing to ingest. I know that the anaerobic bacteria problem we had when using conventional naphthalated corn oil based coolants, went away when we made the switch to Trim.

-- Len