I just ran a job cutting 25 guitar picks out of aluminum sheet and either my stock was a little thicker then i thought or i some how screwed up setting my Z axis zero because the job stopped just shy of cutting all the way through the material. If i go back into the jog screen and just reset the zero height, will CM remember the previous Y, X? I haven’t touched the stock, its still glued to my waste board. Just so i dont have to run the entire job over again, i’ll likely change the job start height in the c2d. file to just above stock bottom before loading the file into CM.
Yes. If you have to re-initialize the machine, your X-Y may end up being slightly different just because the limit switches are not perfectly reproducible.
Actually, I think it’s the controller board that does the remembering, not CM. As far as you’re concerned, it works the same way.
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The CM application keeps the x y and zero in its memory through power cycles. However that precision is dependent on the accuracy of the homing switches. The induction switches are much more precise than the older mechanical switches. So if you have an emergency and need to power off the machine the zeros are kept and maintained. It is always advisable to check in the jog screen with rapid positions to ensure the X and Y coordinates are still accurate and the Z+6MM can be checked with making a 6MM spacer.
When ever you set zero in the jog or use the BitZero the position is remembered. It is remembered the last time you physically set zero either manually or with BitZero. The BitSetter compares the last time you set Z zero and offsets that position with a new tool during tool changes.
Never manually change a tool with a BitSetter unless you go through the software to change the bit. If you manually change the bit outside of the software the Z zero is likely to be wrong.
The last scenario where the zero’s can be lost is if you lose steps during cutting. Then the only option is to re initialize and the last time you set zero will be synchronized. Loss of steps can occur when cutting too aggressively, hitting an obstacle like a clamp or trying to cut past the mechanical limits of the Shapeoko.
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Thanks for the help, I got all my pieces cut out.
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