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Then it would be fairly easy to just put 15 notches on the edge of a disc and have the roller-arm of a microswitch running on the disc edge. 15 x 4 holes in the disc would make a 4-bit optical encoder to encode those positions and would be easy to engineer.There will likely be 15 positions
That is pretty harsh on the mechanics, not to mention the block of titanium or the milling bit.If you're going with a stepper plus some sort of position encoder a micro can be used to command so many steps then check position. If target position is not reached there must have been an obstruction/fault. No need then to detect any overload current?
... who, in the machining business, uses stepper rotaries??
Can anyone confirm that steppers pull constant current?