Optical encoders with DC motors

What model where they?

tommylight wrote: What model where they?

That Tommy is a very good question! But I can't answer it until I find them!

Wait no, I found the models still looking for the drives....
Yaskawa servopack sgde-a5bp drive
sgme-a5bf12 motor servo CNC Stepper

www.google.com/url?sa=t&rct=j&q=&esrc=s&...S7DwTi5EEgunaQmoJueV

Those are position control drives, so they use step/dir inputs, so yes they can be easily wired to parallel port, but and this is a big but, you will get very limited speed form them due to paraport limitations and depending on the encoders used. That is a link to the pdf with all the info on motors and drives. Drives can do 200w.

tommylight wrote: www.google.com/url?sa=t&rct=j&q=&esrc=s&...S7DwTi5EEgunaQmoJueV

Those are position control drives, so they use step/dir inputs, so yes they can be easily wired to parallel port, but and this is a big but, you will get very limited speed form them due to paraport limitations and depending on the encoders used. That is a link to the pdf with all the info on motors and drives. Drives can do 200w.

Tommy, thanks so much for that. I've kept a copy of the document. I had found one previously but yours seems better. I really just grabbed them so I could play with servos one day. They are too small for much but I thought they'd be interesting to use on a small plotter or something Just like whats been done here.

Your motors are rated at 50W, probably 100 to 120 in short bursts and that is plenty for a light gantry plasma cnc. A while ago i had build a 2X1.25 meters plasma cutter with nema 17 motors and it ran fine, never skipped a beat. Had to change the motors as whoever took a look at it started complaining that the motors are to small.
Use small pulleys on the motors and try to get the ratio from 1:7 to 1:10, you would be surprised at what can those tinny motors do.
Or just mail them to me, and i will name the machine i use them on "the RodW" !!!