GU10 - Printed socket for integration into lighting designs.

thingiverse

This is a basic GU10 spotlight socket for integration into designs in place of the larger and heavier GU10 ceramic sockets that are usually used. It consists of two parts - the bulb holder (A) which uses two lengths of piano wire as springs and two lengths of M3 threaded metal (probably steel or brass bolts, but perhaps studding) as contacts.and is printed using high definition (0.1mm layers) printer settings, and its mount, which does not require such precision and will probably be modified by the user to suit the application it is being added to. There are two versions of the mount, B3, which is less than 9mm thick, and B4, which has a 7mm sleeve for the base of the bulb and is just under 16mm tall. The smaller, with 8mm brass M3 screws, weights just 6gm, against 15gm for a commercial ceramic socket. I shall post separately details of a simple bulkhead mount and a B22-GU10 adaptor using the design. I use Osram 4.5W spotlights (AC32042) and find that the base is ~12°C above ambient, and the other end about 40°C above ambient in reasonably free air. PETG works well in this case, but higher temperature materials may be necessary with other lamps or more enclosed spaces, I have not experimented with this. The commercial ceramic socket, of course, can operate at much higher temperatures.