Calibration question

[dbfletcher]

I guess it has been a really long time since I last had to calibrate my x axis. The last time I had done it was when it used to cut slots in a board and the measured based of that. In any case, My question is I see the new procedure wants you to use a 36" board. Is there any advantage to using a longer board (say 48")? My thinking is say I get it to within a .1" at 48 so my margin of error is .025 per foot. If I was off .1 on a 36" board then my margin would be .033 per foot.

I'm wanting to cut some very accurate parts from it in the near future so I would like to be accurate to approx +- .020. Thoughts?

[fwharris]

After looking at the calibration procedure I do not see any reason why you could not use a 48" board. It is probably a good idea if you are planning on doing a good amount of projects at that length..

[bergerud]

This is how I do it:

http://forum.carvewright.com/showthread.php?18432-resetting-X-cal-by-hand&p=156677#post156677

[ktjwilliams]

This was helpful ,,, I was thinking I have to do my machine after I had a few off cuts ...