Quote:
Originally Posted by lemiant
Hi Everyone,
We are going to order a stock of 20mm 80/20 t-slot before build season and we have a couple of questions: Have you ever used this material before, and what was your experience? We have, with good rseults. Where is the best place to buy 20mm t-slot extrusion? Where is the best place to buy the accompanying connectors and fasteners? Would it be acceptable to use #10-32 as the standard bolt on the robot even though the t-nuts will have a metric M5 thread (10-32 and M5 are very similar)?
Thanks for all you knowledge,
- Alex
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We often use 10-32 hardware with M5 t-nuts. 10-32 doesn't actually feel any looser in the threads to me, and if you gave somebody two M5 nuts with the two different screws, they might have a hard time telling which is the "right" one.
The diameter and threads per inch happen to be so close that it works fine. If you tried screwing a 10-32 into a deeper threaded hole, you'd start to cross thread it since the M5's pitch is 31.75 threads/in. For the thickness of a T-nut, that difference doesn't matter.