On Wed, Apr 22, 2009 at 11:21 PM, Eric H. Johnson <[email protected]>wrote:
> Dirk, > > I have been using EMC to do both cutting and engraving with lasers. Cutting > is pretty straight forward, engraving is a bit tougher depending on the > type > of engraving. Fixed power engraving isn't too bad, i.e. the case where > whenever the laser is on, it is at a single power level (obviously you can > create the original in layers and then apply a different power setting for > each layer). 3D laser engraving is a bit more of a challenge. :) I didn't even think about that. I figured engraving would just be like a black and white image, just burning black pixels. But greyscale images should be possible too? > For laser cutting, treating the laser as a spindle works just fine, however > when using it for engraving, my solution was to use the laser as an axis > rather than a spindle. The Mesa boards and the relatively new Hostmot2 > drivers have also helped out a lot as far as being able to intermix both > steppers and servos with pwm / analog signals required by the laser (thanks > Sebastian). Interesting, I need a PWM signal to drive the laser. I haven't really thought about it yet. But I was thinking about using an arduino for it. Although this might be problem because of RT issues over the serial port. > > At any rate, to answer your question, there is at least one other person > here doing some of the things you mention. > Have you tried using a parallel port? Or did you start with a Mesa board directly? Dirk ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
