| ▲ Homebuilt CO2 lasers |
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1) Overall layout of the laser. The two headstocks can be seen along with the copper cooling tube.
2) A nice little temperature gauge I found in the skip at university. Unsurprisingly, it works! I use it to measure the cooling water's temperature. It rises by about 10 degrees in the 20mins I ran it continuously. That's the probe I'm holding on the left. It runs of a little solar panel so it never needs batteries!
3) My Pirani Gauge setup
4) An assortment of my various pressure gauges
| ▲ Homebuilt CO2 lasers |