Hackerbot Labs built this 24 watt laser to bring to Toorcamp. There were many interesting technical and regulatory challenges (FAA approval, rebuilding the liquid cooling system 3 times before the laser stayed cool enough).
Mostly due to the cooling system challenges, the project wound up running about $1000 over budget. 3ric Johanson funded this shortfall out of pocket. I created this tip jar to try to reimburse him a bit.
If you enjoyed the laser at Toorcamp, please consider donating a token amount. It would help the people involved in the project know that folks in the community would like to see us do more of this stuff, and give us super warm fuzzies.
Rough final budget breakdown:
Projector and drivers: $700
Electronics and safety interlocks: $300
Diesel for box truck to transport laser to and from: $300
Grant from Toorcamp: -$1600
More info about the project: