Gnathonemus-
Burning up the photoresist
07/03/2016 at 15:20 • 0 commentsThe first trials with showed that the movement of the laser head is to slow:
"Burning" a pcb layout did exactly that:
the photoresist was burnt so it stuck to the board, during the development process, instead of dissvoling as expected.
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Inspect/Mod laser driver
07/03/2016 at 15:14 • 0 commentsThe laser (driver) is drawing 267mA at 5V.
Added a transistor/resistor to laser driving circuit to toggle laser.
NEJE PCB Exposer
Pimp up the "neje" style engraver to expose UV sensistive PCB