Lamp for 30mm (24V) rail-system

thingiverse

My girls were complaining that the lights in our bathroom (which came with the mirror) are pointing to the ceiling, and that complicates one of the most important things for girls and women ... doing their make-up! ;^) So I decided to create an additional lightsource that makes their life a bit easier. This lamp can be put on the same rail as the original spots are on, so you don't need an additional powersource for it. But because you need a lower voltage - and of course a connection to the rail-system - there is some fiddling to do. Not too complicated if you are at least an average craftsman and know how to use a soldering iron, but still some steps to make it work. I'll explain later ... This lamp is designed in a way that it gives out a relatively bright light without shining directly into your eyes. This is done by a diffuser glas which is printed in clear PLA and does the job quite well for me. In my version I used four industrial 3W LEDs, but I also designed an adapter which you can modify to your own needs and put all kind of LEDs on. If you need any specific fits or help modifying that part just let me know. I'd be glad to help out. The electrical part: I used a copper-thingy from a report cover, cut it in pieces, bent it a bit and soldered wires to them. It is quite hard to explain, so please take a look at the pictures. To convert the 24V from the rail-system to a voltage you can use you'll need a fitting driver or - like I did - a LM7805 with some additional capacitors. All components should fit easily into the housing without disturbing the light in any way. Oh, and if your rail-system delivers AC voltage you need to rectify that voltage before converting of course. The mechanical part: For the lower connector you'll need support because of the sunk nuts, depending on your printer and your settings you may need supports for the housing because of the air-slots. If you think you can do without these slots you could use the alternative housings. The 'body_half_slots.stl' just got slots in the side wall, the 'body_no_slots.stl' ... well, you know ;) Screws: For connecting the lower connector to the lamp's body you'll need two M3x10(min)-14(max)mm bolts and two M3 nuts. To mount the upper connector-part you'll need two M4x14(min)-18(max)mm bolts, depending on how and where you place your LEDs and electronics, and two M4 nuts. Then you'll need 8 screws 2,9x8(min)-12(max)mm to mount the LEDs (or four to mount the adapter for your own LEDs plus whatever screws you need for these LEDs). And finally you need six screws 2,5x8(min)-16mm(max). For playing around: If you would like to fiddle around with some or all of the parts and don't want to use the stl-files just tell me what type of files you need. If you would like the original Sketchup-files please let me know what version you're using. Please, if you find something wrong or have any suggestion for making this thing better feel free to let me know. Oh, and by the way, the use of this lamp is not limited to bathrooms ;^) In fact, with this concept you could create your own lighting system, if it's for a desktop lamp or a complete room lighting. Please let me know if you have any ideas about it.