Originally Posted by
mountaindew
Adding stock wont fix this problem most the time.
Unless I'm completely misunderstanding what you're attempting to do; adding stock will fix this (or at least is does in Sprut 7). Adding 1/16 stock to the screws will keep the tool 1/16 away from the fixtures - even when chamfering. The fixtures must however be correctly set up as fixture items for the operation.
Quote from the Sprut 8 documentation:
Although the restricting model is not machined, there can be moves between work passes performed along it, and the rough operations perform material removal located outside the restricted model. Therefore a guaranteed gap between the tool and the real restricting objects should be considered either directly in the geometrical model of the restricting objects, or by the additional stock value.
Just beware of the following (again my experience is with Sprut 7, Sprut 8 may be different):
Fixtures are ignored for rapid moves - I have the parts to prove it ;(
When jumping over a fixture the height of the fixture is not considered - only the clearance height set in the operation preferences.
Only the tool is evaluated and not the tool holder. Be careful with short end mills and tall fixtures.
I use fixtures very rarely but they do work.
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