This is a continuation of http://ift.tt/1nwQvW9. I finally got some spare time - don't you hate it when work gets in the way of your hobbies!
I re-leveled my bed - it's 0 on both ends, and about a 1/4 of a graduation off in the middle (1 graduation = 0.42mm per meter). I'm not sure if there is anything I can do about this twist - the lathe is fixed at 3 points.
Using a test bar, I aligned the head so the error was less than 1/4 graduation on the DTI (1 graduation = 0.0005")
I mounted a straight edge in the chuck and ensured that was square to the spindle rotation.
I am planning on using the straight edge to check the saddle squareness to the way.
So, my question, given all these little accumulative errors in setting up, is there a better way to check the squareness? I was thinking of mounting a square to run parallel to the way and parallel to the cross slide, but I don't have a precision square like that, and I'm not sure how I'd mount it.
Frank
PS For the record, may saddle is showing approx 0.1mm convex over about 100mm.
I re-leveled my bed - it's 0 on both ends, and about a 1/4 of a graduation off in the middle (1 graduation = 0.42mm per meter). I'm not sure if there is anything I can do about this twist - the lathe is fixed at 3 points.
Using a test bar, I aligned the head so the error was less than 1/4 graduation on the DTI (1 graduation = 0.0005")
I mounted a straight edge in the chuck and ensured that was square to the spindle rotation.
I am planning on using the straight edge to check the saddle squareness to the way.
So, my question, given all these little accumulative errors in setting up, is there a better way to check the squareness? I was thinking of mounting a square to run parallel to the way and parallel to the cross slide, but I don't have a precision square like that, and I'm not sure how I'd mount it.
Frank
PS For the record, may saddle is showing approx 0.1mm convex over about 100mm.
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