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General Mach Discussion / Re: A question if I may... is there a way to default all axis to zero on startup?
« on: July 25, 2023, 09:45:38 AM »If you don't have homing switches or a unique and repeatable machine home position, it can indeed be challenging to ensure that the machine is always in the same starting position between sessions.thanks for the reply. this was quite a while ago, but literally in the last week finally got my home switches setup... and setup G59 offset.
In such cases, one workaround is to use a fixture or a physical reference point on the machine table that you can reliably return to at the start of each session. This reference point can serve as a pseudo-machine zero, allowing you to maintain the relative position for your work zero coordinates.
Built many a guitar w/o using limit or home switches and the way I did it was not w a fixture (not at all a bad option or anything) but just mounting my work piece, moving to center, setting all axis to zero. If I needed to shut down my machine I'd just return to zero and exit mach3 and save my xml file.
Now that I've got homing setup... I do have some questions about that... I should probably open a new thread but on the off chance anyone who knows is listening:
I've setup g59 based on my home position at front/left/top of machine, but I want to work from center of my bed. so if I manually move to center of my bed and save that as g60 offset... next week I go startup my machine again... what is the procedure for getting to that center?
If I understand, I have to go to offsets tab, select g59, hit ref all home to again find front/left/top of machine... then go to offsets tab and select g60 and it will reliably (assuming home switches are reliable) find the center position I saved?