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Sadly, you can't avoid tesioning those screws, as they will sag and bend (especially that 1500mm one) under own weight, and than cause scary...
Affordable ball screws are source of trouble and inaccuracies of their own kind. Guys who are making HevORT have stories about that.
Thanks ;-) I have resolution like 2400steps/mm, 800 from screw, times 3 from pulleys ratio. inaccuracies on belt systems comes from stretch of...
Idea is to swing stepper motors inside. and use belts to transfer torque to leadscrew and increase it a bit along the way. overall concept can be...
Thanks. reduction adds to resolution too. I plan weak spinde (noise restrictions) so it wont be cutting fast anyway. of course reduction can be...
Stokrotka74 published a new build: This is a Sphinx variation, aimed to minimize footprint and maximize workarea. Work in progress. Read more...