New Jarduino build gets started

[daplatapus]

Originally Posted by KrazyKuch

I didnt see if anyone told what you did wrong here and I know your past that but for future reference for anybody else it looks like those 2 original resistors were in parallel and by putting in a jumper you basically jumpered out your variable resistor....ie you removed the resistance from the circuit, hence the smoke!!!

Lol, I actually ended up pulling everything off the board and traced everything back to see how that thing was made.
I basically created a dead short like you said. Education is never free

[daplatapus]

2 ends down, 10 to go... them is a lot of wires in one little fitting...ugh

[daplatapus]

A soldering we shall go, a soldering we shall go...
It's become my new habit over my morning coffee... I can think of funner ones

[daplatapus]

Ok, I got one fixture almost done. Just the fan and sensor circuit to figure out. I think I'm going to run a separate 3 wire just for the fan circuit to solve my wire shortage problem. Which will be much easier to fix if I ever have a fan fail. All I'll have to do is yank the fan off the heatsink and replace rather than have to pull the whole fixture to repair it. So here's the amphenol connector all soldered up:



And how it looks like once it's mounted to the heatsink:


I'm fairly happy with the final look of it.
And how it looks like from the back:



And the top with the fan and everything. The random wires still not connected are the fan PWM wires and the 3 sensor wires.



And a final shot with the actual DIY cable I made up hook in:



A couple quick questions for anyone who's done something similar:
How did you mount your temp sensor on the heatsink and where did you mount it? Directly above one of the LED stars?

[mike31154]

I guess I'm too late with this advice, but on connectors with that many pins packed tightly together, it's often a good idea to have a piece of heatshrink on the wire before soldering. Once the pin is soldered up, slide the heatshrink down over the pin & shrink. This minimizes the chance of pins shorting together via a strand of wire or blob of solder. You did a fine job with the soldering so shorts are unlikely once things are buttoned up, but adding the heatshrink was a requirement for the work I used to do. It was great to work on the newer equipment with crimp pins that were pushed into the connector after assembly. With the proper insertion/extraction tools, these connectors were a pleasure to work on, but I wouldn't want to pay for that stuff out of my pocket.