Thread advice w/engineering resins

Usually when I create threaded prints, I “print” the thread, then clean it out with a tap afterwards.

I’ve found some of the engineering resins a little difficult to tap, i.e. the tap makes little progress in the print, it gets stuck rather than cutting. What I find that works is to do two things:

(1) Tap the thread before you cure.
(2) Use a little IPA as a “cutting fluid”.

The IPA is especially helpful – previous cured engineering prints that I had difficulty with, tapped-out just fine with a little IPA.

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