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General Mach Discussion / Re: Bridgeport Series 1 boss 6.1 Please Help!!
« on: January 14, 2011, 05:28:47 PM »
On the Bridgeport I got the air motor to drive the sheaves for the spindle pulleys was goosed so I just fitted a hand wheel to it and I can manually adjust the speed. I have the VFD also but as this was one of my first conversions I never hooked that into Mach and I simply control via a pot. I just use the VFD to vary the speed a bit and mainly turn the handwheel to an approx RPM then if needed vary the VFD. I am not a big fan of VFDs as I feel you loose too much torque at lower speeds, this may be different with the latest generation of them or maybe even if a VFD ready motor was fitted but I have neither and have no intention of finding out. AC servo would be the way I would go if I was to redo the Bridheport then again I have a suitable motor and drive spare and they were cheap
Ok pics of my setup are attached.
Hood
Ok pics of my setup are attached.
Hood