Hi Neale and Jazz

Thanks for your responses.

Thanks Jazz for your explanation, I think I understand better now.

The problem I had, was after I calibrated and then re-calibrated to check that it was moving the right amount, it would still be out, so I would do it again, and again and after 4 or 5 tries, still not knowing if it was calibrated properly. When I started out, both the x and y were nearly double on the measure. When I thought I was done I did a test cut, just a circle set at 100mm. I ended up with an elipse! The x axis was almost spot on but the y axis was only 38mm.

I have been out with the machine again, the MS drivers are still set to Jazz's settings and after calibration the 'steps per' on all 3 axes are between 1275 and 1286. It seems to cut at a reasonable rate according to the feed rates. I was expecting it to move quicker on rapids and jogging by hand.

Any way I am a lot happier with it now.

Thanks again guys

BTW did you see the picture of my machine on my intro post, I'd like your comments.

Jim