I've built a laser with the following components:
-green laser module + power 50mW no-name
-Laserworld scanner set LW-50K
-Laserworld slave usb intreface
-software HE-Laserscan III 3.4x
-2 pc cooling fans + SMPS 12V\1,5A
-blanking interface home made between +G signal and TTL laser connector.
The settings are default for the software and for the galvos amplifiers. In the text mode i am pleased by the performances of the laser, but in the figure mode the problems appear. First of all i observed that through the Y mirror a small beam passes, altrough it doesn't have scratches. The biggest problem is that in complicated figures some lines become thin and dissappear. The software is very hard to use and to set. I cannot change the FPS number. The scanning angle is standard and it's like probably 15-20 degrees. With 7-8 kilo PPS the figures look better and the frame rate is too small and it's pulsing. At 25-30 kilo PPS the figures are continously, but some lines dissappear.
I attach some pictures with the laser.
2 movies on youtube with the laser:
http://www.youtube.com/watch?v=rbYVGJ5I9iQ
http://www.youtube.com/watch?v=x0zwnZ39IrQ
The flicker it's from the camera(K800i 3.2MP).
At the photo with the block of flats the blanking is not connected.
The 4th picture is only a drawing with the 28k PPS from the software, it's not the ilda test pattern.