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Visual on threaded holes
kees_bijker
Member Posts: 160 ✭✭
in General
I have used the hole feature to thread a M10 from a face to start from and then through all, which includes a second prong of the same part. It displays the thread visually fine on one side but not on the other side. Am I doing it wrong or is this normal behaviour?
The whole part is:
https://cad.onshape.com/documents/1ab95fa3922667d779b78632/w/194954ec54ef9df02ac82b97/e/2c3faab94bf852ee8c66fb36
It is not like it is hampering something, I just thought it was odd.
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The hole is only set to tap a depth of 25 mm, which is not reaching the side of the inner gimbal. Either increase that tapped depth, or chose the option "Tap through all" (which still only applies to the merge scope, which you want
That is super weird, and thank you for pointing that out to me. The feature stated through all and the hole went through all. in the part where it did not show the thread it had a hole of 8.5mm, which is the core diameter of M10. So why is there another button to force it to put the thread through all?
I do not see the logic for this, please explain. BTW if you suppress my hole feature BOTH holes dissapear which proves that I said through all.
The hole feature is meant to represent the manufacturing process (i.e. provide data to annotate a drawing handed off to a manufacturer). Tapping a "blind" drilled hole is harder (i.e. costs more), and the threads can't go all the way to the bottom of the hole. Drilling all the way through makes tapping easier but tapping a long thread when not needed is also a waste.
As a result it's pretty common in the real world to drill a hole all the way through and only tap part of it so the separate control for hole and tap end condition is useful/needed to reflect that.
It might be helpful if the tap end position automatically "defaulted" to "through all" when that is the hole end condition but you could argue that tap and drill depth are "usually" different in most cases…
Oh darn! I made the operation for both holes in one go and then expected each to be on its own with respects to thread depth, silly mistake.
Thank you, will have to pay more attention when doing things this way.