Hi guys,
Im having an issue while cutting red oak where the parts are coming out too long/too wide on both x and y axes. The parts i am trying to cut are 1.875 inches wide and about 60 inches long. The 60 inch is cut on the y axes and the 1.875 is cut on the x (short) axes.
I am using a 1/4" compression bit and am running at 15k rpm, 150 ipm. I am climb cutting and leaving .005" per side until the last pass.
Could I be losing steps? Wouldnt that cause smaller parts instead of bigger parts? I see my leadshine controllers are set to 1/4 microstepping. Should i change it to 1/8?
As for the calibration, i am using the numbers given to me by JCUT for steps per inch. I did a test this morning on the long axis and cut a shallow slot in my spoil board 94" apart. The distance between measured just a hair over on the tape measure. Perhaps about 1/32 over. I also measured my bit with calipers this morning and found that its actually 0.245 in diameter.
Should I calibrate my axes against a tape measure? I will try to cut another piece using lighter passes and with the proper bit diameter. Any other ideas? Thanks!