I wanted to upgrade my Z axis so i tried change my lead screws to 2mm pitch / lead. Investigated Anti backlash nuts, different rod couplers and Polycarbonate wheels instead of the normal back POM ones . this is on my tronxy but is relevant to all 3D printers like the Creality cr10

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Anti backlash Nuts
AliExpress
http://s.click.aliexpress.com/e/bVHQUVTK
Amazon
https://amzn.to/2CBswCr DE https://amzn.to/2CtmFyG UK https://amzn.to/2TQd5Rv AU https://amzn.to/2ufZrHY India https://amzn.to/2Cr189M
BangGood
https://www.banggood.com/custlink/Gm3...


Polycarbonate wheels
AliExpress
http://s.click.aliexpress.com/e/bYHCsvEs
Amazon
https://amzn.to/2OgRyva DE https://amzn.to/2OgHUc0 UK https://amzn.to/2Cr10ai AU https://amzn.to/2HsYlRF India https://amzn.to/2FcFlDz
BangGood
https://www.banggood.com/custlink/mmm...

Rod Couplers
AliExpress
http://s.click.aliexpress.com/e/fo5nV0M
Amazon
https://amzn.to/2udkXwX DE https://amzn.to/2FhQjHJ UK https://amzn.to/2Csuvsr AU https://amzn.to/2HHvTLs India https://amzn.to/2OabNdI

Stepper Accuracy Test
https://hackaday.com/2016/08/29/howa...