Fusion
What I normally do is create the thread in a sleeve, scale in 2 axis (non uniform scale.) to increase the diameter then extrude the external finished shape.
Mark
Mark Hughes
Owner, Hughes Tooling
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Another option is Press\Pull on the faces of the thread but you'd probably need to press pull the 2 angled faces then the 2 diameters. You'll probably need different offsets for the diameter.
Mark Hughes
Owner, Hughes Tooling
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Here's a quick screencast, shows 2d scale of thread and adding chamfers. You'll need to experiment a bit with the scale to get a fit you're happy with. The chamfers are easier to add if you switch to cosmetic threads, add the chamfer the switch back to modeled threads. File's attached.
Mark
Mark Hughes
Owner, Hughes Tooling
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2 choices if you want a quick way of printing threads that work first time. One spend 100k or more on a good printer!😉
Or make a custom thread XML file that produces oversize female and under size male threads. Info here on custom thread XML files. Also an add in here to help manage updating the files after Fusion updates.
Mark
Mark Hughes
Owner, Hughes Tooling
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Are you printing metric or imperial threads and how many different sizes? I'd guess you will want to use standard screws\bolts so you'll only need oversize female threads?
Mark
Mark Hughes
Owner, Hughes Tooling
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To get you started I've attached a XML file with a standard pitch M10 and M20x2. I've added 0.1mm to the minor, major and pitch diameters. You can just copy over from the standard metric thread XML for other threads. I've only included female threads as you're more likely to need to fit to standard bolts\screws.
Original metric XML file on the right.
This shows the size difference using your sample file. You'll need to experiment to find how much oversize you need.
Mark
Mark Hughes
Owner, Hughes Tooling
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