5mm LED holder for GT2 X-axis carriage

thingiverse

I suggest printing so the holes for LEDs are nicely on the heabed and the "handle" is in 45°. It's best to print on a raft if your adhesion is not strong enough. Until a while ago, I had a LED strip around my Geeetech i3. I had to put the strip down, so I designed another way to shed light on the printing bed. I designed a small 5mm LED holder that is easy to print and easy to attach. It is to be attached by M4 screws to the GT2 X-carriage, which is used in my remix thing:4165311 of "Unified Prusa i3 extruder" - thing:1277720. The sad thing about it is that it can only be attached right if your GT2 carriage is upside down. I'm assuming it does not matter if you have it right, or upside down, though. All holes are exactly for 5mm LEDs and are designed so the LED does not go any further. It might be useful to have a cover, because the LEDs also shine through the back, but I wanted it as simple as possible. Everything important can be seen in the photos, but don't forget to use a resistor!!! I connected all 8 LEDs to 12V through 200ohm resistor. You can also connect them serially, just make sure they have the right voltage or use a correct resistor: I=U/R, therefore R = U/I; while I should be less then 20mA for one white LED, U is your supply votalge (usually 12V, it depends on where you connect the LEDs) and R is your needed resistor. For me it was R = 12V/(8LEDs*0,008A) = 187,5ohm. I wanted 8mA only (0,008A) so they last long and are not too bright. I'm attaching .dwg file, sources (where did I get the dimensions from), photos and of course, STL files of both left and right part for 2, 3, 4, 5 and 6 LEDs. I personally use four LEDs, but three should be nice too. It mainly depends how far in the Y axis do you have the nozzle from the X carriage.