Iwanted to buy the H2D Laser but i dont know if it fits my needing. I also wrote a ticket for prepurchase request to bambu but without a solution. i need a laser to cut Pcbs, FR4 and Epoxy resin and similar materials but bambu cant tell if its capable of that. Also as i get the printer only have the birdeye camera to align the laser to the object, so how i can get a precise aligment? i feel like the birdeye camera is good for having blank sheets of material but not finished oject to engrave or cut, and the printer dont even have a boundary function or something like that (snapmaker style) i would like to use other sensors to align like the toolhead camera or even better the toolhead lidar. For now i dont think i will buy the H2 laser for this issues, someone has experience or know something more?
I think you can forget about that. A diode laser is unsuitable for this. Mine is done with a higher-power CO2 laser.
You also need a really good extraction system, because cutting epoxy resin produces toxic fumes.
The Bambu system is completely unsuitable for this.
a CO2 surely can do it but i was wandering if even diode laser can do it at least i dont know if a visible wavelenght laser can do it. for fumes is not a problem i can let it outdoor
Epoxy resins don’t work well with a laser. Firstly, the results are usually very poor because the edges become unclean, and secondly, the material can start to burn.
The exhaust hose is far from sufficient for the fumes; proper extraction is required.
PCBs are easier to machine with milling machines.
As a side tip, if you’re serious about working with a laser, buy a standalone laser instead of the H2D with laser. I wouldn’t buy it again after using it once for wood; it still smells like burnt wood weeks after use.
Put a plate with some baking soda on the bottom and run all the fans for a good while. Just like putting it in your fridge it will absorb the smells. Also I’m sure you did it already but a good clean after using the laser can also reduce smells
Yesterday I was talking to a friend who works a lot with laser systems. He’s also the laser safety officer at the company where he works.
He strongly advised against processing epoxy resin with a diode laser at home. It doesn’t work; it requires far more power.
The fumes are extremely toxic, and the extraction system for the H2D is far from sufficient to remove them.
Yes i was planning to do that in a closed office that already has a fume extraction system. For the epoxy i thought it wasnt enough, it was just a plus… I would use that more on pcbs
Efficiency of the Laser to cut PCBs aside, the birdseye cam is not at all precise for locating and placing laser work.
When using the birdseye cam to locate etching for one of the sample keytags it was between 1 and 3.5mm off center, which effectively ruined the workpiece that I was trying to etch.
To get any kind of real precision out of work location, we need to use alignment jigs that we can measure against for absolute positioning or the work will come out off center.
The question is rather whether it’s even possible to cut circuit boards with a diode laser.
Commercial suppliers use fiber or UV lasers for this.
Acrylic and similar materials only work to a very limited extent with the Bambu laser, and metal requires more power and different laser types anyway.
The question was alignment.
Ability to cut was a vey good topic that was already well addressed, so I answered with my experience on h2d paser alignment.