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General Mach Discussion / table coordinates wrong

« on: February 27, 2009, 03:51:54 PM »

Hi. I was just sitting through the first two mach video tutorials, and got to the point where I was ready to set up the Homing/Limits fields for our ROMAXX machine. We have mach in metric, and the bed is 289 x 610. We don't have limit or home switches, so I've linked the machine coordinates to the work coordinates -- I thought that then at the start of a session the machine could be zero'd to the corner, and an offset could be used to position the work piece. When I toggle display mode into table view, this gives an out line that looks more or less correct. However, when I began using the offsets to try to position a job, the units seem to be massively off: the coordinates to get the work piece up to the opposite corner are 7 000, 15 000!

Relevant screenshots are attached.

Any insight would be appreciated

Cheers,
FP.

ps -- sorry if this message showns up more than once in the forums. I'm having weird problems and can't tell if it's uploading or not.