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Show"N"Tell ( Your Machines) / Re: 1987 Bridgeport Production Center Interact 412 to Mach3 Conversion
« on: October 30, 2013, 03:07:50 PM »Hi JH
Was the Heidenhain broken...just thinking it would have been easier to keep it and run single phase servos with it..I have a heidenhain far better than Mach 3 it's a very stable industrial controller and all the info on writing the plc programms is free on the Heidenhain downloads sight!! Plus it would have had the backlash comp and pitch error already set for the machine..
Good thing about the Heidenhain as well is you can upgrade to the latest control or anything in between and the plc automatically updates itself with the newer reserved words and commands when the control is powered up.. If it's a TNC355 it will be using 11 micro amp sinusoidal encoders as the 355 has 4 sinusoidal encoder inputs and one square wave for the spindle axis.
John.
I got the machine cheap as it was marked for "parts only not working". The last owner indicated that it would no longer home and the parameters were lost. I am not a big fan on using 25 year old electronics or trouble shooting them. For me, it will be faster for me to gut the old and in this case "unknown" state of the electronics and replace them with AC Brushless digitial controls that I can fix and maintain.
You are right about Mach3, its not perfect but at least I know its limitation and how to work around them. We run Mach3 on the 1987 BP412 5 days a week.