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Recent content by theprof291166

  1. theprof291166

    bearing rail straightness

    Rails are about 50 inches. Interesting about the laser alignment. I can look into that. What are witness marks?
  2. theprof291166

    bearing rail straightness

    I set this up relative to the drum as that is the only reference there is. There may be a datum but I can't find it so it must have been jigged at the factory. Unfortunately this is an obsolete machine, the factory long since gone. There is a sharp edge to the drum and it wasn't that hard to...
  3. theprof291166

    bearing rail straightness

    I have uploaded a picture of the rail arrangement inside the drum. The rails are at the top.http://files.engineering.com/getfile.aspx?folder=9750d7ec-cb37-4ff5-8ec6-fab1dffc9d16&file=DSCF1485b.jpg
  4. theprof291166

    bearing rail straightness

    Dear Mike yes I am somewhat regretting i did take them out. However I took them out to polish the rails as I was getting rather bad jitter effects on my prints. It has improved them that is for sure. I figured what you did, that the two pad rail was the one that defined the straightness...
  5. theprof291166

    bearing rail straightness

    Dear Fellows I am a rookie here so please bare with me: I am trying to reset two plain bearing rails, each rail is around 50 inches long, 1 inch deep and a little less wide. They have triangular sides for the plain bearing pads to track. The rails have around 28 hex bolts I think holding it to...

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