I very new at this CNC machining. I followed the instructions when assemblling the system. After making tests cuts, it was determined the machine was not square. I tried some things but no success. I did the diagonal measurement and the square was about 10mm out left to right. I unplugged the machine and disconnected the control unit sensors and motor connectors.
Then I lossened the 12 screws that attach the side to side braces. I brought the gantry forward and tightened the forward screws, then moved the gantry to middle and finally to the rear tightening the screws according. I remeasured the the diagonals and still not square.
So I dug a little deeper. I removed the spoil boards and loosened the aluminum extrusion screws. I the repeated the above squaring with the gantry procedure with all of the extrusions loose. I was getting closer to square but not quite there.
Next I loosened the left only and the right screws remained tight. I brought the gantry foward and made a diagonal measurement, amost to square. I gentley moved the left back slightly to achieve square. I the tightened the left 6 screw down while moving the gantry rearward. The table was now square. My diagonals were 60 inches.
I then retightened the extrusions per assembly instructions and checking square along the way.
I have not made any test cuts yet because it’s getting late on the east coast.
Sounds like you got it squared away, now let’s some cutting!
I spent about 10 minutes for the final square measurements with a very large and accurate square from several different positions and the tape measure on my 5 Pro 4x4. Time well spent and small adjustments and remeasure. It was a pain but expected to get the final accuracy the machine is capable of.
@RebelRun I had the same experience squaring my 4 x 2. I found the whole “push the gantry to the front” approach did not help square it at all. However, the diagonal measurement method is best. If you spend the time wiggling it until both diagonal measurements are identical, you’ll be good to go. Happy cutting!
Pythagoras is your friend. I would only install two of the slats, one on each side, with the spoil boards. Then I would use the Spindle with the finest point tool you own and make three points on the bed to determine if your machine is in fact square. Take the time to set up the machine properly and you will be rewarded with accuracy.
Be sure to take a dial indicator to the z axis as well, only after you have milled a flat surface into the spoil board of course.
This topic was automatically closed after 30 days. New replies are no longer allowed.