My Stoopid Stuff
  • Home
  • Projects
  • Blog
  • Lec'tronics
  • Links
  • CNC
  • Quick Recipes
  • 3D Printer Tips

Swapped out the Brass Anti-Backlash Nuts on the CR10S Pro with POM nuts

7/12/2020

2 Comments

 
I've been trying to tune the Z-Axis due to some fine lines that show up on larger prints, which I'm sure are z-wobble related.  They are not enough to really bother me normally, but I am thinking about re-printing the doors on my enclosure with a slightly newer design, and the prints will be tall and take a good deal of time, so I want to get them right.  Since I was gonna re-work the Z anyway, I decided to pick up some POM anti-backlash nuts which I would have bought had I known they were a thing, before I installed the brass ones.  The CR10S Pro requires the 8mm version which has 2mm pitch (goes up 2mm with each full rotation) and 4 starts (which are the number of starting threads if you look at the top of the leadscrew - a normal screw has one start).  POM has better qualities than brass for this type of thing, and should need less lubrication.  Similarly to the brass ones, I had to file a bit from one side of the nut that installs on the ribbon cable side, and used a nut and a lock nut on each screw to secure them.  The screws that hold these should not be tight, but they also cannot be loose, so it's a bit of a fiddly thing, and the lock nut should lock against the regular nut (it would go spring washer, regular nut and then lock nut).  I lost a couple of the spring washers though so not all mine have them.

I also went back over the Z-setup following the process outlined in this video.  I also found a few things during teardown which may have been contributing, specifically the old brass nuts may have been too tight and the top left bearing guide had to be scootched over just a bit to align with the leadscrew better.

I still need to test this, and will update with some pics once it is tested.

Update 7/18/2020: They work great, and I can see a slight improvement in the print quality, would definitely get these over the brass ones.
2 Comments
Ed link
2/24/2021 04:17:39 pm

Nice post and nice blog! Your post made decided in favour of the POM anti backslash nut instead of the brass one for my Ender 3v2. Thanks!

Reply
Mike link
2/24/2021 05:11:20 pm

Thanks! I swapped the brass anti backlash nut on my ender3 (v1) a while back and it has been running without issues and zero additional maintenance for the z-screw since. These really tighten up the x gantry too, which is a help when doing a filament change mid print since it tends to help keep things from moving.

Reply



Leave a Reply.

    Picture

    Stoopid Me

    Welcome to my Stoopid corner of teh Internet.  It's mostly gonna be 3D printing stuff, but I also post some recipes, projects, and the occasional rant here as well.  More Stoopid stuff is updated regularly.

    I recently joined the Amazon Associate program, so some of the links on this site are Amazon affiliate links. This means that, at zero cost to you, I will earn an affiliate commission if you click through the link and finalize a purchase.  This will help to support this site, and pay for more Stoopid Stuff.

    Archives

    March 2023
    February 2023
    January 2023
    November 2022
    October 2022
    September 2022
    August 2022
    July 2022
    April 2022
    February 2022
    January 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    February 2019
    January 2019
    December 2018
    November 2018
    October 2018
    September 2018
    August 2018
    July 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    November 2017
    September 2017
    August 2017
    June 2017
    December 2016
    October 2016
    September 2016
    July 2016
    March 2016
    February 2016
    September 2015
    August 2015
    June 2015
    May 2015
    April 2015
    March 2015
    February 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014
    July 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014
    November 2013
    August 2013
    July 2013
    June 2013
    May 2013
    April 2013
    March 2013
    January 2013
    December 2012
    November 2012
    October 2012
    September 2012
    August 2012

    Categories

    All

    RSS Feed

      Contact Form (Name is optional)

    Submit
Powered by Create your own unique website with customizable templates.