you would have to model all the threads with a sweaped helix cut.
no you are not missing anything, SW has never made actual threads as a drawing is the contract to a vender, a solid should always include drawings because if you send a export how would they know tolerences, surface finishes, coatings and thread, ream, counterbores and so on.
if they have SW they can see in the tree what the hole call out is. or you could include an edrawing with notes on it, or a jpeg with GD&T.
on other reason they don't is all the helical faces slow the models down and make the files vary large.
As a machinist I always want a drawing just to double check and to have while I'm at the machine for QCing and checking the work. If I make a drawing I am only guessing on what your design intent is.
if something doesn't fit it aint on me!!!!!!!
it's on you for not clarifying what you wanted for an outcome.
and I will still charge you for the work done and any rework need to correct it or start over.
hole callout in edrawing.jpg 424.1 KB
by the way just interested why the switch???
We are in the process of making the switch from hard copy paper drawings to full 3D model machining. We have customized our toolbox hole sizes so that we can use feature recognition in WorkNC.
All of our threaded holes show the tap drill sizes (tap drill diameter for 5/16-18 was changed to .314 dia in toolbox). We have also created a separate set of hole features to use for dowels so that they are in the model .001" under nominal (press fit) or .001 over nominal (slip fit).
I am pretty sure Lenny is wondering why you switched from Creo (ProE) to SolidWorks for your mold design. I am as well.