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General Mach Discussion / Setting up my home machine coordinate position, without homing or limit switches

« on: September 02, 2012, 10:58:09 AM »

I need some help from the experts. I have a home built machine that I purchased. It is about 5' x 12'. I have the bed set up to cut out 49" x 97". I want to set my home position in the lower right corner if you were looking at the machine from the front. I know that I can move the machine to that point and either zero all the DRO's and it will return there each time I push the move to zero buttton. Until, I turn the computer off. Then it goes to another spot. I have tried putting the machine in the spot I want and then clicking the Ref All button, but it doesn't seem to work. Also, the guy I bought it from and a very small section of the overall table set up in the soft limits. I have scoured the forums on here and CNCzone to see if I could find the answer, but it seems like all the ideas are discussed around having switches hooked up. Some days I'm sure I will get to that point, but it wont be for a while. So if anyone can help me, I would sure appreciate it.

Thanks
Dave