I have compiled a photo for engraving on my GCC Mercury 25W laser. I start up the laser at sees the little (!) guy engrave as was its life depending on it. Very satisfying view
After the engraving was completed, I examined the result for quality and the like and found some odd stuff, I hadn't bargained for, as it seemed:
Besides the very nice engraving, there were 3 or 4 random lines of random dots all across the engraving - also at places where there were no information in the file.
I immedietly sent the file to the vendor and asked them to engrave the same file. It came out perfect by them.
I now suspect 2 things:
* Either there is a bug in the mainboard controlling the laser or
* there is noise in my cable between the computer and the engraver.
To add to the info, I use an USB->Parallel-cable, which seemed to be the only thing that would communicate with the machine.
I use a laptop (which comes without an LPT-port) and tried a PCMCIA-card first. This couldn't communicate with the machine. Then I tried the parallel port in my USB-hub, which created odd offset-errors. Finally I tried the direct USB-LPT-cable, which seemed to work - until now.
Any ideas?
Best regards
Peter