Would you have any idea what sort of offset you would need to produce a press-fit part? How tight can the part be?
That may be difficult to set up, you would probably want a gap like <50 microns. However, any surface that is angled downwards a bit will be a little thicker than designed due to how the laser bleeds through a layer and cures extra material on the underside so you likely won’t be able to print with that precise of a tolerance.
The quick rule of thumb I’ve been using since the Form 1 is 0.1 mm radial clearance for a tight fit and 0.2 mm radial clearance for something that I want to rotate. You can definitely go tighter if you want a true interference fit but I generally just stick with this rule of thumb because it’s easy to remember (and if I want to more permanently bond the parts, a tiny drop of CA works great)
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Great, thanks for the tip Jason!
We recently published a White Paper on Engineering Fit that you should check out. It goes over best practices for part tolerances and includes some of the more popular fit mechanisms.
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Excellent, thanks all. For some reason I hadnt seen the relevant white paper that certainly looks great!