The LED ring and its companion buck-converter get a little warm in operation so it's probably best to print this with ABS.
Here's the LED ring I used: http://www.ebay.com/itm/272155023035
I included a mini toggle switch and just hard wired it to the power supply because I didn't have a power supply connector handy.
Former electrical engineer, I became a dentist in 2011. I designed and built my printer, Son of MegaMax, using surplus machine parts at the Milwaukee Makerspace.
My newest printer design, Ultra MegaMax Dominator, is a coreXY machine with a 300...