I’ trying to cut a part which came out 2mm short in the y-direction.
I set the y-scale factor to 1.003, and was expecting it to be 2mm larger in y-direction. Instead it is 2mm shorter. I assume the Y-scale is used to multiple, correct?
Overall 4mm out?
There is a manual adjustment you can make in the maslow.yaml file FluidNC then Config Items Maslow_Scale_X and Maslow_Scale_Y.
Mine are set to 1.005 and 0.997 but this is a variable dependant on your setup.
I moved the Maslow so it the edge was aligned with the spoil board. I then jogged the Maslow 2000 mm, then measured the distance travelled from the edge of the spoil board to the corresponding point on the sled. Distance theoretical/distance measured should give a good value.
I used a laser measure to calculate how far the Maslow actually moved. Repeat process for other direction.
Some people have reported that this varies for different points on the grid.
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Based on ian-ab’s reply I looked at my Maslow config and see that the X scale is 0.996 and the Y scale is 1.017.
Good to know. I will now have to check whether I need to tweak my defaults.
Thanks both for your replies.
The x dimensions are spot on, but in y direction it is slightly too small.
I thought entering an y-scale >1.0 would result in a larger workpiece in that direction. Instead it came out smaller, which took me by surprise.