PCB manufacturing the easy way.


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CaptainBoing

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Joined: 07/09/2016
Location: United Kingdom
Posts: 2171
Posted: 02:47pm 06 Apr 2020      

Hey Volhout.

yes that might be your problem - you have the laser pin-sharp and my old man eyes didn't get to that and it counts as a happy accident again.

LaserWeb is a nice piece of software... As with a lot of Open source, it seems flaky at times and I have had mystery blue-screens at random which are either LW or the driver for the laser... but the driver is a standard CH340 which I use loads of other places without issue. I did an experiment where I left the machine on after lasing which left the driver loaded but quit LW... no blue screen so I am pretty sure where the problem lies. The code on the bsod seems to be all sorts as well... rather than one consistently. So beware.

here is a pic from my microscope of an etched copper board with a steel rule across it for measurement... it actually is probably 0.1 - 0.2mm ish in reality.



I did upgrade the firmware on the Eleksmaker. Its controller is simply an arduino but that makes it easy coz of the boot loader. Can't remember the name of the utility I used (I am in the office and that is on the workshop PC) but I will post back later with the GRBL version as well. Over-cutting on corners is a problem when I am engraving (but not etching a pcb) and I have noticed burning when doing wood. A friend locally makes violin cases and I produce a rather nice little wooden maker's plaque for him, I had to resort to raster scanning (and set the beam width down to a false 0.1mm to get rid of stripes) to avoid burnt corners. That new firmware may well be worth investigating. Cheers for the heads-up.
Edited 2020-04-07 01:38 by CaptainBoing