Hi. I have written a little command-line utility that removes the redundant up/down Z motion for which LazyCam is somewhat famous. This can greatly reduce runtime.

LCZO basically "reads" through your gcode and removes the unnecessary Z travel.

The program is run thusly:

c:\mach3\gcode\lczo < part.tap > part_fixed.tap

(1) "lczo" is the name of the small app (stands for LazyCam Z Optimizer).
(2) "< part.tap" redirects the gcode file as input to lczo.
(3) "> part_fixed.tap" redirects the output of the program to a new file you can load in Mach3.

I will E-Mail a copy of the application to anyone that sends ANY amount of money via PayPal to cgallery yahoo.com as a gift. I'm just trying to raise $75 so I can buy the "Pro" version of LazyCam. Not just for my own use but also for when I do demonstrations for school classes (telling kids we have to draw a 2.75" circle to get a 3" hole unnecessarily complicates things).

I will try to E-Mail the executable (only 8k in size because it is written in assembly) ASAP if anyone actually takes me up on this.