Project/LaserTrophy: Difference between revisions

After a phone call to the tech support line at [https://www.fastcolours.com/ FastColours], we bought some samples of Fluorescein and Rhodamine-B fluorescent dyes and mixed them up to make a water-based solution that glows bright orange/red under UV light. FastColours were very helpful with advise on suitable dyes to select and how to use them to get the best results, they also warned us that the dyes were incredibly concentrated. This proved to be very accurate as the 20 gram samples we got would probably have been enough to make up over 1000L of final solution! The UV dye was poured into the cooling channels of the old laser tube and the hoses capped with nylon plugs made on the [[Tools/metallathe|metal lathe]]. The tube was installed into the clips, secured with cable-ties as a backup in case the clips failed and then mounted above the laser cutter.