Need a help with coupling Parallex 360 servo feedback motor to D shaft

Comments

• iseries Posts: 624

  2020-03-12 - 10:02:45

  I 3D print those parts.
  
  Mike
  

  

  

  WheelAdapter.png

  1262 x 727 - 53K
• dksinghal Posts: 2

  2020-03-12 - 11:03:01

  Thanks Iseries
  it was helpful to get the name
• Phil Pilgrim (PhiPi) Posts: 22,627

  2020-03-12 - 18:19:16 edited 2020-03-12 - 18:20:33

  I would strongly recommend a solution that uses the round hub that comes with the servo. The reason is that the injection-molded splines in the hub are much stronger than any that can be 3D printed or laser cut. I've tried laser cutting splines, and they have a tendency to slip under load.
  
  Also, I would recommend using a flexible shaft coupler that allows for slight misalignment between the servo and the encoder; otherwise, something could break. I've seen it happen.
  
  But more to the point, the Servo 360 has a built-in encoder, and it's a very good one. Why do you need an external encoder to begin with?
  
  -Phil
• rosco_pc Posts: 372

  2020-03-13 - 10:26:03

  What about this one: https://www.servocity.com/25t-futaba-set-screw-shaft-coupler
• idbruce Posts: 5,943

  2020-04-09 - 04:00:24 edited 2020-04-09 - 04:01:15

  Also, I would recommend using a flexible shaft coupler that allows for slight misalignment between the servo and the encoder; otherwise, something could break. I've seen it happen.

  +1
  
  I once broke the shaft (0.25" dia.) on a $160 NEMA 23 stepper motor due to misalignment. All I could say at the time was "OUCH"