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#1 posted 02-02-2011 11:57 PM
Very cool project. I follow this to the end.
What brand of profiled rails and runner blocks are you using? Try to stay away from ones with a high preload. Same with the ball screws. If you are going to use stepper motors without encoders you can run into the problem of missing steps during the initial start and end of movement. A nice S curve at both ends of your movements will help.
You will also want to support the end of that main axis ball screw or else it can whip.Make sure that your orthogonality is as good as you can get it.
You can really tell you are from New England with that accent! Reminds me of Norm. :-)
-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX
8523 posts in 2948 days
#2 posted 02-03-2011 12:39 AM
thats one big CNC setup!
I am looking at setting up something similar but for metalworking, but the CNC part of it should be very similar in essence so it’s nice to see someone in the progress of working it out.
looking forward to more…
-- ㊍ When in doubt - There is no doubt - Go the safer route.
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