I have had my MK2 for about a month or so now. After all assemble and setup, I wanted to make my spoilboard, so I purchased a file from a well known CNC-er on Youtube named Garrett. In no way am I placing blame for this issue on him, it just happened to be his code this problem showed up on. In fact, other than the “break in” code, it was the first program I ran on my MK2. The spoilboard is a two sided program, and once the first side was done, I flipped it, loaded the file to drill all the holes for the threaded nuts, and ran it. The code ran great until it got near the end where there were about 8-10 holes left to drill, and suddenly it simply started drilling almost on top of the holes it had just finished drilling. What that means is the X Axis was off in the negative direction about 5 inches. I stopped the program, sent the machine back to XY zero, only it registered about 5" off in the negative direction from the original XY zero. Y was and has always been perfect.
Now we come to June 18, (today)…I finished my new spoilboard with t-tracks, set up and ran the surfacing file (which I wrote), and it ran fine, no issues. After everything was finished there, I decided to load and run a small program I made for my wife’s school art class (just some simple ship steering wheels). There were two tool paths, the first being a pocket for the center of the wheels, cutting in 1/4" ply, using a 1/4" bit. I had two rows of 4 on a 13"x22" piece of ply, and started running the pocket code. First 5 holes went with fail, but just as before, suddenly on the 6th, it started cutting almost right on top of the last hole pocketed. It was, again, almost exactly 5" off on X axis in the negative direction. I stopped the program, sent the router to XY zero, except the zero was now about 5" off just like the last time it happened. So, I am now convinced it is NOT a code or gsender issue. I am pretty sure it is a controller problem. I am afraid to do anything now, fearing that at any moment it will jump off registration on X in the negative direction about 5"…
OK, friends…any ideas? I turned in a ticket to Sienci, and hopefully will get some answers quickly. I sent the the gcodes from both programs. I am a Journeyman machinist and know gcode somewhat, but I am definitely not an expert. However, I looked through the code and found nothing to tell the router to move X 5" during the program. Also VCarve Pro showel toolpaths running as expected, no problems. Gsender should never consistently do that. I am using a brand new computer, downloaded gsender from Sienci, all the new cables Sienci sent me, the machine is only a month or so old…needless to say, I am becoming frustrated and wondering if I made a bad choice with this purchase…
