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Roy Prawira

  • Joined on Jul 26, 2016
  • Unknown

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Commented on DC motor closed-loop control software over 2 years ago
Okay thanks a lot Misan, never crossed on my mind the solution is really simple,I just have to reverse the wires polarity for correcting the rotation direction :). You're really helpful and I really appreciated. Keep the good work :)
Commented on DC motor closed-loop control software over 2 years ago
Hmmmm the mechanical design is similar with http://www.thingiverse.com/thing:811271 and I'm currently build this printer but I have an idea to change the belt transmission to direct drive because I read a lot of cases about lost step when using the belt transmission if the belt is not tight enough. that's why I want to try to use the direct drive. And I have an idea to use magnetic encoder behind the double shaft motor so the motor can drive directly the shaft. But I think I have to reverse the direction if I have to put the magnetic encoder behind the motor.
Commented on DC motor closed-loop control software over 2 years ago
Pardon me for duplicate posting because the website very slow on my site. Anyway, back to the topic, what I want to do is using this DC servo motor on UM gantry style directly attach to the shaft so I don't have to use belt to drive the gantry. And yes, I've been looking those coupler before but the coupler a little bit big for my design but I will look at it again later. And I also found the 775 motor with 5mm D-Shaft and this is really good, the thing is the overall size is bigger than nema 17 stepper motor, so this is not my option for now. And okay, so the only solution using that coupler. Btw do you have experience using double shaft motor and put the encoder behind the motor? if you have an experience, do we have to reverse the direction? because I think the direction will be different when we put on behind shaft. Thanks before.
Commented on DC motor closed-loop control software over 2 years ago
Hi Misan, great job!!! But one thing that I'm trying to solve with this motor DC is about the shaft dimension, do you have any idea how to attach the motor shaft (around 3mm) and smooth rods (around 8mm or more) because the gap between those dimension quite a huge, thanks
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