Laser4DIY is an Open Hardware project by FabLab München. It’s a laser structing device for prototyping PCBs i.e. it’s a laser “engraver” that directly removes copper from blank copper clad boards using laser ablation (instead of milling or etching). For more details see laser4diy.org
The project is currently doing a (closed) beta testing phase with funding from Prototype Fund Hardware. We have 2 groups trying to replicate the device from the published documentation, one directly at the FabLab München (Munich, Germany), the other at the Das Labor in Bochum, Germany. At the same time we are working on the documentation, adding missing parts and improving the existing ones.
This thread will be used to give updates on the build progress of both teams. Feedback (technical issues, open questions, missing information) will be given by opening Github issues in the Laser4DIY repositories
Sorted out strange hardware issue: When the boards were assembled the GRBL Firmware stopped working. It turned out the motor shield pressed the reset button on the Nucleo-Board. Both are axis are working now.
Hi there! I’m André, also from Team Bochum.
Due to colds goring around here and some other issues, we could not meet for some time.
But yesterday, we made some progress. Let me tell you what we did.
We started building the supply unit with the power supplies and the cooling. Construction went smooth until we accidentally stripped one of the threaded couplings from the radiator. It seems, that the metal is really really thin around there and if you thread the hose-coupling in to deep, you rip it apart.
Laser4DIY is on the Hackaday podcast! Elliot and Dan are discussing it starting at min 29.
PS: small correction on what’s discussed on the podcast: our pump diode driver is running in constant current mode. We do not pulse the pump diode (yet). But yes, the magic of the q switch works with a cw pump diode too, and we indeed generate pulses ~2.5ns with almost 50kW peak