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« on: March 28, 2012, 11:50:26 AM »
Hi,
I have just set up a small china cnc router bought on Ebay from MIB instruments. I was able to get everything running, but I am having two problems. The first is that when I set the configuration for inches I only get mm readings on the DRO. I set the G80 F6.0 G20 in the initialization line, but that did not help. I re-set the system to mm and that did changed the DRO to increment in what seemed to be inches, but I don't know if this is correct. The second problem (challenge) is that when I MDI a movement of 1 or 2 inches, the axis I program says 1 or 2 on the DRO, the table slides move much more (at least twice). What am a setting wrong? The spec sheet from the manufacture (MIB) lists the parameters as: SPI = 460, Vel = 250, Accel = 20. This makes the table creep along. I played with the Vel and Accel as suggested in one of the video tutorials and that made the movement faster but still not accurate. The other thing is when I am in motor tuning the motors run nice and smooth and the tables have a nice rapid movement. When I exit out and use the Jog mode, the motors are very noisy and the tables look like they are jerking. The motors are ICAD 57 2 phase 3A 1.8 Degree step motors. Does anyone have a suggestion on what to do?
Thanks
Martyondrums