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General Mach Discussion / Re: Kasuga NC mill to CNC ?'s
« on: June 24, 2012, 01:27:55 PM »
Yes pot is a potentiometer, basically you are just wanting to supply a voltage to the drives that you can vary from zero to 10v (or 9v if using a battery) to test them out. I made up a battery box a while back out of 2 x 9v batteries and a pot, this allowed me to get 0v at centre of pot rotation and -9v fully one way and +9v the other. That way I could test out the amp in both directions. I now use that amp on the spindle of a manual lathe. The headstock on that lathe was extremely noisy so I used a servo direct to the spindle to bypass the noisy gears and just use a pot for spindle speed.
The encoders for you is a problem as you require the tach for your amps. Most people go the route of using Step/Dir capable drives and thus they dont need the tach so can replace that with an encoder. As you have the original amps then you will need to keep the tach.If you can get a belt and pulley mounted on the shaft you could drive a cheaper encoder that way and still keep the tach on the other end or if you could mount the encoder on the opposite end of the ballscrew that would also work, if not then the encoder you found that is compatible with the resolver mounts may be the only way unless you wish to first try the resolver inputs on the Kanalog to see if they are any use.
Hood
The encoders for you is a problem as you require the tach for your amps. Most people go the route of using Step/Dir capable drives and thus they dont need the tach so can replace that with an encoder. As you have the original amps then you will need to keep the tach.If you can get a belt and pulley mounted on the shaft you could drive a cheaper encoder that way and still keep the tach on the other end or if you could mount the encoder on the opposite end of the ballscrew that would also work, if not then the encoder you found that is compatible with the resolver mounts may be the only way unless you wish to first try the resolver inputs on the Kanalog to see if they are any use.
Hood