Recent content by rdmotors

  1. rdmotors

    Digital Readout

    Audioguru Funny you should say that I am using lots of the parts from the printers for the unit including the stepper motors, slides, slider rods, and other pieces. I did leave the laser alone though, from the laserjet since I tought it wouldnt be powerful enough. ;D I will look for the...
  2. rdmotors

    Digital Readout

    I have two questions in this area of digital readouts: 1) Is there a project here that uses old pc mice parts to create the signals for a DRO? I have noticed that HP printers have a marked tape behind the print head. It uses an optical device in conjuction with this, I guess for location...
  3. rdmotors

    3-Axis Stepper Controller

    My question abou this circuit is: Why are the input lines to the ic have 5v resisted supply on them? The restistors I am talking about is RP1-3. it would seem that you would back feed power into your lpt port? Or am I way off base?
See more
Top