I have noticed a small error in my calibration when cutting long “Y” cuts. For example, I need to cut a dado into a board 40" long. Since I can’t cut a 40" long dado in one pass, I cut part of it, scoot the board down, cut some more, securing the board each step of the way.
In preparation I have created a fence on my X-Carve, as seen in the first picture.
You see two boards screwed into place. The leftmost one is out of the way (behind the brackets holding the left rails), and the next one over can be removed and replaced, if needed. After adding the second from the left board (not the one with the dado), I took the X-Carve and told it to cut it down so that I had a machine created reference fence. This board hasn’t been removed during any of this cutting.
Near the bottom of this picture, and more closely visible in the next, you will see a slight jog in the cut, which amounts to an offset of 0.044"
I see this repeatedly when I have to do this type tiling operation. If it makes a difference, the dado is made with an operation that cuts a 24" long slot, then I just adjust the board for the next cut and run the same program. Obviously, there is some overlap in the length and thus air cutting. I don’t need to do this a lot, so I’m not too worried about making it more efficient at this point.
Is there any calibration adjustments I can look at the minimize or eliminate this error? Or, is this just inherent with this design of CNC?
I love my X-Carve, but this is a disappointment.
Thanks in advance