My Dual Wire Gantry Printer April 06, 2018 07:24AM |
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Re: My Dual Wire Gantry Printer April 30, 2018 08:32AM |
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Re: My Dual Wire Gantry Printer April 30, 2018 11:52AM |
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Re: My Dual Wire Gantry Printer June 25, 2018 11:47AM |
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Re: My Dual Wire Gantry Printer August 27, 2018 04:54PM |
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Quote
o_lampe
It doesn't seem to matter, when the fishing line runs up/down along the stepper shaft?
Can you tell more about the specs of the line? How many turns around the shaft to keep it from slipping?
How did you tension both lines equally?
Quote
banana_muffin
Glad to see someone trying out string again!
The optimal number of wraps for a cable transmissions is:
F(hold) = F(pull)*e^-(Mu)*(theta)
Mu = friction coefficient between the cable and capstan (pulley)
Theta = wrap angle (one wrap = 2*pi in radian) # of wraps
If you know the required torque for your application, the motor gear ratio, the tension differential between the two terminated ends (Fhold/Fpull), and Mu, you can solve for theta which will give you how much to wrap the cable around the capstan.
Re: My Dual Wire Gantry Printer October 17, 2020 08:54AM |
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Re: My Dual Wire Gantry Printer October 17, 2020 10:16AM |
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Re: My Dual Wire Gantry Printer November 18, 2020 12:31PM |
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