let me introduce myself: I'm Daniele and I work as product development engineer in a cable harness manufacturing company.
To assure an harness has been electrically checked we normally use labels and pen marks, but now we decided to used laser engraving technology to make a visible mark on plastic connectors. For this reason we bought a 1W laser (too weak, so it was discarded) and now a 450nm TTL 5W laser from Eleksmaker (bought form Banggood and that will be used to understand the right power of laser to do the job) .I have several questions from you to better understand the product and the possibilities of laser engraving:
first of all I have a driver module (the P/N on the board is LASER3500 170420), I would like to understand:
- If it's possible to make voltage and current adjustments directly on board to understand what is the current absorption and wattage (in the description on banggood is written: Power Max.5W Average 3W, I need to know what is the defalut setting received from Eleksmaker) .
- I see there's a black button and a regulator (see image below): what is their function?
- Where I have to put my amperometer to measure my current current (sorry for the pun)? Between the power supply and the laser driver or between the laser driver and the laser module?
- If I drive the laser with TTL (so there wil be a pulse modulation) will the amperometer and the voltmeter be able to measure the current and the voltage? The laser will work on/off at very high frequency so I'm worried it will not be able to measure it.
Other question: it is normal that for this laer the shape of the laser is not rounded but it's a line? I read it could be oval due to laser diode technology, but when we tried statically we engraved lines instead of points/ovals.
Thanks a lot in advance for your support