Thanks for the answer Matt, in fact reading Jason’s article was what pushed me into writing this post. He does write about printing threads but not about tapping them afterwards, I should have specified that in the original post
Hi, thanks for sharing your experience ! I see we share the same gut feeling about this.
I plan to make a few test in a single part with small(ish) threads, both printed and tapped and will try to make some measurements. In the meantime I’m wondering of others like you have experience with this stuff.
The original post actually mentioned printing threads and then chasing with a tap, but the updated guide focused on the best ways to connect printed parts using screws and I found a lot of better techniques than printing the threads directly. If you do want to print threads, larger threads work better than smaller and it helps to fully post-cure your parts before tapping (as @FredB also suggests). The printed threads will always be more delicate than the metal on metal thread options recommended in our guide and won’t even hold as well as wood screws in Tough resin.
Tapping small 4-40 threads is simple (on clear resin) and actually the screws will self tap. Larger diameters are trickier. I tapped a few 1/4-20 threads on the black resin and it ends up cracking a bit on the exit point if the material isn’t even. Will try printing the thread and following with a tap.
Hi, Does increasing the resolution help with getting better threads?
Editing support material gave me defected faces also. Any thoughts on this issue?
I am trying to have the best quality for the threads without tapping because tapping works with small sizes as M5 etc… but I need big sizes so what parameters are important in order to get best thread quality?
I gave some clearance between male and female threads. I am doing experiments at this moment and It would be great to get tips from you guys to reduce experimental time.
I’ve had great success in printing straight holes of the correct size and using self-tapping plastic screws (screws for plastic - not made of plastic) for assembly. I have one model that I’ve printed a couple of times with outside 1"-14 ANSI threads that prints just fine at 100 microns.