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yes el, those rs gear reducers are very expensive. i saw tha jaycar one and was keen to try and rip that motor out and substitute one of the 1.8 degree steppers i have from the disk drives
i will have the stepper controller next week, so will see how fine the control is at 1.8 degree and then try 1/2 step. I would lilke to work out microstepping. and then finally gear reducing (cheaply)
i will have a look at 20" dob tonight, i was awestruck with his ccd work.
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