On Fri, Sep 09, 2011 at 12:48:25AM +0100, andy pugh wrote: > > As of yesterday, M67 is working (in the 2.5 branch and Master), if you > need to output an analogue value synchronous to motion. > (It had been quietly documented but non-functioning for quite a long time) > This is probably the way to go for analogue laser engraving, less so > for cutting.
When I tried it (before I discovered M67 wasn't working in 2.4) what I found was that the motion planner slows down at each segment making it useless for engraving. My theory (which I haven't verified in the code because it's a bit of a maze to the uninitiated!) is that the G64 support for making all those straight movements into a single pass is defeated by the M commands between the consecutive X moves. Right now I'm doing bitmap engraving using streamer + HAL magic inspired by the Hacklab laser setup. Power is set by M68 and is constant for the entire job (at least for a single engraving). Now that I know more HAL magic I could see setting up M3 Sxxx to drive the PWM instead. -- Ben Jackson AD7GD <b...@ben.com> http://www.ben.com/ ------------------------------------------------------------------------------ Why Cloud-Based Security and Archiving Make Sense Osterman Research conducted this study that outlines how and why cloud computing security and archiving is rapidly being adopted across the IT space for its ease of implementation, lower cost, and increased reliability. Learn more. http://www.accelacomm.com/jaw/sfnl/114/51425301/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
