Originally Posted by benjon  yes i started A but just a vertical line go over and over again one time i pushed my screw drive some where and "a" go crazy..need to restart uhu board other way was like in electrocardiology |
The vertical line going over and over again is like it is supposed to be
A going crazy is NOT the way it is supposed to be IF you carefully move the motorshaft back and forth. should be more like a sinus depending on how you moove it. It is easy to see each increment of the encoder here if everything works as it should. At least i can see that in my configuration.
That you have to restart the uhu is probably not a bad sign.
Your encoder should work if it is a quadrature output 5v TTL encoder.
Motorsize depends on machine size, required cutting force, acceleration, desired top speed, efficency of drive system etc. in other words impossible for us to say without a lot moore information.
My biggest motor is rated 140W continous power, and this is way to much in my configuration. i think i now use about 60 - 80 w on each axis and still this goes potentially very fast!
Originally Posted by benjon about BOB..you use that ? i read is for stepper ..and parallel not serial..is ok? |
I'm not sure i follow you here, you intend to drive the UHU via the serial line?
That is not possible.
I use BOB to ease the interfacing towards the computer.
When the motor, encoder and UHU controller is set up properly this can be considered a stepper configuration since the interfacing is the same, step and dir signals.
regards
Chris