It’s been a while from my last post. I started a new small project to improve the cooling water system of my cutter laser device. The original 40W CO2 laser tube died, and I had to replace it. After some research I found out that the original system (water tank + pump) was not enough, since the water temperature must be regulated between 15 and 20 degrees, and the room temperature can reach to be as high as 30 degrees in summer. That’s why I used 2 water pumps with 2 different circuits, 4 peltiers (12V @ 15A), some temperature sensors, velocity controlled fans using PWM, heatsinks, a water radiator, a custom controller board to control everything, and all of crazy stuff. The thing is it is now working like a charm, and all the methacrylate pieces to build the MRI structure have already been cut.
I also did another small project with a digital magnetic angular sensor + ST eval board with a capacitive TFT display and TouchGFX, so that I can start winding the coils without loosing a single loop. Here a photo of the setup:
Once I get all the coils winded and assembled to the main structure, I’ll come back with more news 🙂