I am getting ghosting or shadows on every image I try to process.
This appears to only be a problem with the picengrave software because I can get excellent results in Inkscape plugins and a simple free web based program (http://nebarnix.com/lmg2gco/
) that incidentally is many times faster than piclaser.
The fact that all of the other software I use produces no ghosting, I think this excludes my hardware as I have used the same parameters and source files and get no ghosting in the other software solutions.
I have tried reducing/increasing speeds and laser power, scan directions, running from the SD card, and many many combinations of settings in piclaser but the ghosting is consistent and appears as two images, one slightly smaller than the other.
I took the gcode that piclaser generated and edited it to change all of the M106 S commands to Z so that I could look at the gcode visually in a program such as Camotics and the ghosting does not appear in the visual representation.
It appears that many others have had this problem and many have tried to solve it by tinkering with their hardware. I don't think my hardware is the issue here. It produces excellent quality with several other software solutions and it is only the piclaser software that is giving this result.
Now, since looking at the visuals of the modified GCODE does not reveal anything, I wonder if maybe piclaser activates the laser in both forward and reverse paths while other solutions may only activate the laser in one direction only.
By the way, I have tried horizontal, and 45 degree and the same ghosting is present in both.
Only the J-tech option produces code that runs on my controller which is an Arduino Mega 2650 running Marlin firmware driving a RAMPS 1.4 board.
Using an inkscape extension to process a vector graphic there is no ghosting.
I have created simple test patterns such as a text on white image for testing. Piclaser burns two copies yet appears only once in the visual when I change the M106 commands to Z and only once if I run it thru the web based solution mentioned above.