You will need a fairly fast computer and have the kernel speed set higher than the default 25000 mhz in Mach3 to produce the high pulse rate needed as a result of the 125 micro-stepping.īe sure your parallel port shows up in Device Manager and is set for LPT1 and an ECP port type. Your drives are micro-stepping, so the 'Half-Full' (pin 9) isn't used. If the motor current DIP switches are set correctly and there is sufficient cooling for the drive, the 'Drive Fault' should never be a problem. I can't think of a good way to use for the 'Reduce Current' with Mach3. That would give extra amps (extra power) during stepping with reduced current (reduced heat) for holding. The 'Boost Current' could be connected with the step (Pulse in), and the motor amps set lower with the DIP switches so the motors don't get too hot. If you move an axis by hand, the DRO will need to be re-zeroed. The AWO could be controlled with Mach3, as the 'motor enable', but I haven't found a good need for it on my DIY router, so I never hooked it up. The common (-) must be the connector shell, as there is no pin for it. most of the pins could be left unconnected. If I understand correctly, I only need to be able to control pins 1, 2, 3 with the rest being optional. Pins assignments are as follows: 1-AWO, 2-Dir, 3-Pulse, 4-Reduce Current, 5-Reset, 6-Boost current, 7-NC, 8-NC, 9-Half/Full, 10-NC, 11-Opto Supply In, 12-NC 13-Drive Fault+, 14-Drive Fault-, 15-NC. I could use a D25 or D9 serial card and hand wire an adapter to make the right connections but I'd prefer not to have this extra step. The problem is finding a DB15 serial card. What is the best way to connect these to the PC for ease of use? I'd prefer to use a USB connections on the PC side but have read that is not the best idea and that installing a serial card is a better idea. The translators have D-15 (two row, not 3 like VGA) connectors.

He plans to use some of them for basic cnc operations. He also has several Slo-syn 3180-PT125 (125 micro-steps) translator drives.

Getting bobcad 21 to run on windows 10