On Friday 03 July 2015 17:38:13 Bertho Stultiens wrote: > Hi all, > > While porting the Hershey fonts for engraving it occurred to me that > they are very heavy in pen-up/down movements because many strokes are > partials. There is plenty of room for optimization, reducing the rapid > moves by about 30%, but that means that engraving is not done in a > consistent direction anymore. > > To illustrate what I mean, consider the letter V: > 1) single stroke movement: > - rapid move to left top > - pen down > - move to middle bottom > - move to right top > - pen up > > 2) double stroke movement: > - rapid move to left top > - pen down > - move to middle bottom > - pen up > - rapid move to right top > - pen down > - move to middle bottom > - pen up > > The first is faster (quite a bit) because you prevent Z movements and > extra travel. However, the directional change of the mill may be > visible in the stroke. On the other hand, the mill may not properly > revert to the middle bottom in the second case either. > > What is the experience of the people here? What would be preferable? A > quick (case 1) path or a directionally consistent path (case 2)?
If you see more than a nearly invisible artifact using the first method, then it is time to tweak the backlash. Etching a PCB is also a pretty good test. However, I am not privy to whether or not the alpha blending includes the backlash movements. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
