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Is there any way to adjust eccentric spacers after everything has been assembled?

Discussion in 'CNC Mills/Routers' started by Steve French 17, Jul 21, 2021.

  1. Steve French 17

    Steve French 17 New
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    Hello Everyone

    I built a C Beam gantry actuator, as seen here

    and everything is working perfectly, with the exception that I need to adjust the eccentric spacers slightly - is there some trick (or tool) to doing that WITHOUT taking the entire thing apart? I have yet to be able to find enough clearance to get the wrench where it needs to be AND be able to turn it.

    Thanks everyone.

    ~Steve
     
    #1 Steve French 17, Jul 21, 2021
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
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    Just unscrew the top plate from the C-Beam, keeping everything else assembled, then you can pull the motor+top plate+leadscrew+carriage as a whole out, adjust the eccentrics, and then put it back :) - test fit before finally screwing down the top plate again.
     
    #2 Peter Van Der Walt, Jul 21, 2021
  3. Steve French 17

    Steve French 17 New
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    Perfect - thank you!
     
    #3 Steve French 17, Jul 21, 2021
    Peter Van Der Walt likes this.
  4. David the swarfer

    David the swarfer OpenBuilds Team
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    I don't have that mechanism but I do have restricted space, so I cut a spanner in half so I can get it under the carriage to adjust eccentrics. Spanners are cheap so I just bought an extra 10mm for the job.
     
    #4 David the swarfer, Jul 23, 2021

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