527,819 active members*
2,176 visitors online*
Register for free
IndustryArena Forum > WoodWorking Machines > CNC Machining Centers > A lot of deflection on belt driven CnC, better belts?
Results 1 to 2 of 2
  1. #1

    A lot of deflection on belt driven CnC, better belts?

    Hey guys, I have a zenbot4896 Cnc router that uses belts as the drive system, well they are very flexible, and I don’t want to tension them anymore then they are because I’ve already broke a shaft off of one motor.

    Are there better, tougher belts that I could replace them with? I eventually play on converting to a rack and pinion setup, in just not there yet.

    Thanks in advance!

  2. #2
    Community Moderator ger21's Avatar
    Join Date
    Mar 2003

    Re: A lot of deflection on belt driven CnC, better belts?

    Yes, there are, but you still need to tension them a LOT, which will lead to more broken shafts. What you need are much larger belts, that likely won't even work without a redesign. I would say something at least 2" wide, although ideally it would be even wider. Belts will always stretch, and the longer they are, the more they stretch.

    UCCNC 2017 Screenset

    Mach3 2010 Screenset

    JointCAM - CNC Dovetails & Box Joints

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

Similar Threads

  1. Belt Driven Z Axis
    By FreeRider in forum Momus Design CNC plans
    Replies: 5
    Last Post: 05-31-2017, 06:47 AM
  2. New CNC build with belt driven Z
    By n0rth3rnlight in forum DIY CNC Router Table Machines
    Replies: 16
    Last Post: 04-18-2015, 07:18 PM
  3. direct driven or belt driven
    By jeremy0203 in forum Benchtop Machines
    Replies: 5
    Last Post: 07-27-2011, 05:23 AM
  4. belt driven CNC
    By jwest in forum DIY CNC Router Table Machines
    Replies: 1
    Last Post: 11-29-2008, 11:10 PM
  5. Belt driven screw ?
    By tomcat47 in forum Linear and Rotary Motion
    Replies: 10
    Last Post: 01-29-2007, 05:20 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts