I desperately need some good help. I bought my Maslow CNC about six weeks ago and still haven’t had a successful piece cut (I did have a successful “engraving” that was supposed to be a cut, but that Z-axis problem is resolved).
I tried to attach two videos explaining the results and my current problem. However, apparently, that’s not allowed so I’m breaking this into two parts:
Specs and Troubleshooting Efforts:
- I have 1.26 of both Firmware and Ground Control
- I’m using a Macbook Pro
- I’m using a Rigid Router with bungee cords to keep the Z-Axis happy
- I’m using Inkscape for the vector images and Easel to create the g-code
- I’ve calibrated the machine probably a half-dozen times at least and manually calibrated it using a shortcut and link from a super helpful guy on this forum (Madgrizzle, I think).
I’ve been frequenting these forums for solutions on many occasions, but I haven’t learned to read g-code yet. I seriously doubt that is the problem, however.
Results of First Several Cuts
I created two identical pieces in Inkscape. They look identical in Easel. They look identical in Ground Control. However, when the Maslow cut them, one was at least 1/4" (probably closer to 3/8") longer on one edge. In other words, when overlayed one on top of the other, one piece was significantly longer on one edge than the other one. The other parts of the piece were fairly close to the same size.
Three pieces were created from the same template so all three pieces should have had one part that was identical. On Inkscape, they all measure within 1/32 of an inch or 1/1000 of an inch discrepancy. None of the pieces were the same size when Maslow cut them. The biggest to the smallest versions were about 3/8" different.
Another piece was supposed to be square on all four corners of the piece. Not only did it come out trapezoidal instead of squared, one side that was supposed to be a centered, symmetrical-curve turned out to be lopsided - far to one side as part of the trapezoidal skew.
Lastly, when I tried to print a second, similar pattern, I set everything up in Ground Control so that the new cuts wouldn’t overlap the old cuts. When I “Set Zero” for home position, everything looked perfect (just like the first one had looked perfect on Ground Control). There was at least twelve inches of free space at the top of the board. However, when it started to cut, it started cutting about twelve inches higher than Ground Control was showing on the screen (I measured the size of the board/cutting-surface on my screen and estimated that measurement). Ultimately, I had to stop the cut because it was going off of the cutting surface.
Does anyone have any ideas what may be wrong at this point in time? Frankly, I’m about ready to demand a refund from Maslow. This is getting ridiculous. It shouldn’t take this much coding expertise to get a machine to work. None of my four degrees or twelve books that I’ve written have prepared me for this type of challenge … Any help is greatly appreciated.