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2 Questions about Major/Minor size and diameter of threaded opening Plastic Thread Creator
doug_probst
Member Posts: 9 ✭✭
Sorry thought I was in the thread for the Plastic Thread Creator, Admin Please move if needed.
I hope someone can answer these 2 basic questions, I tried to do this with thread creator and parts did not fit, so hopefully this script will be better but I need to be selecting the proper sizes before adding threads.
If I have a tube that is 47mm ID, and add 3mm pitch female threads, what should the diameter of the male part be before adding threads? Also, Once the the threads are added to the 47mm ID tube, I assume the opening of the tube where the threads were created will no longer be 47mm, how do I determine how much smaller the hole will be. I have a 46.5mm object that must pass though the hole when the threaded plug is removed. Hope that makes sense?
Thanks!
Doug
Comments
Not sure what I did wrong first time but ended up with M52 Male and M52.5 on the female side as my printer makes inside circles .4mm smaller than the model. This worked fine, I have clearance of 47mm through the hole. Used a 47mm cylinder in the assembly to check clearance.
This thread can be removed unless someone has some helpful insight to addd
@doug_probst Sounds about right. Right now, the only way to get a specific inside diameter of the female threads is to add the pitch to the diameter of the base cylinder. I would also double-check the clearance of the threads with your printer. The script automatically adds clearance, and adding any more could make the threads really loose.