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Loose Fastener Problem

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Loose Fastener Problem

Post by CKAFamily on Sat Mar 12, 2016 6:25 am

Hi All,

I have some screws loose!!

I now have over 100hrs of printing with varying success due to my novice level of experience. Wink  I am learning fast and loving it!

I have found that CTC used standard nuts instead of Nyloc Lock nuts for some of the fasteners and sometimes no washers under the nuts.

I have had all of these standard nuts come loose and bolts fall out. The main problem area is the 4x fasteners that attach the Y axis guide rails to the back wall of the printer. There are 2x for each guide rail and they pass through a small ply wood block that supports each rail. You must replace the normal nuts with Nylock nuts or Locktite each one. They are M3 size. I have had bolts fall out and the rail drops forcing the head into the job.

Hint, replace one at a time so realignment of the rails is not required.

Check your own machine and look for any standard nuts and ensure they are replaced or thread fastening adhesive is used.


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