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Not Just a Belt Tensioner (Fix for Ender 3 rubbing Y belt)

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Creation quality: 2.9/5 (4 votes)
Evaluation of members on the printability, utility, level of detail, etc.

  • 12.3k views
  • 11 likes
  • 13 downloads

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3D design format
STL Folder details Close
  • BearingSpacerFront.stl
  • BearingSpacerRear.stl
  • BeltGuide.stl
  • Body.stl
  • Tensioner.stl
  • ThumbWheel.stl
  • YMotorBracketPart1.stl
  • YMotorBracketPart2.stl

Learn more about the formats

Last update 2020-10-03 at 14:45
Publication date 2020-05-26 at 17:38
Design number 152611

3D printer file info

3D model description

Hi everyone, if you own an Ender 3 you have probably noticed that both the Y and X axis belts are not alligned with the relative fixing points on the Y and X carriages, resulting in rubbing and premature wear of the belts.
This design is my solution or the Y axis issue, including a belt tensioner.
Before this upgrade I could't properly tension the belt, as higher tension meant higher friction in the belt rubbing points!
All you need to build this upgrade is:
-A few M3x30 screws
-One M3x25 screw+ M3nut
-One M5x30 screw+nut
-One 8x22x7 bearing (the size of the bearing is the same used in fidget spinners or skateboards)
-A longer belt (the factory one is a bit too short for this system
Anything else is printable, you need to print one copy of each stl uploaded, 2 copies of each one of the two BearingSpacers, all the files can be printed support free.
I will design a similar system for the X axis and, if the Y system will receive positive feedback, I will upload it here on cults in the next few weeks.

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