Post date: Jul 7, 2015 3:25:16 AM
It's late-ish, so this will be short- I got a heatsink machined. Well, more like a clamp to hold the heatpipe onto the CPU, but same idea. It turned out pretty well, except that the heatpipe doesn't sit centered (and won't poke all the way through- one end has a lip on it... I messed up an offset somewhere). It may well be close enough, but I'll probably end up redoing it anyway. I'm putting enough effort into this laptop that I might as well.
That, and it's fast to mill- something like 2.6 minutes total. I upped the feedrate to 50 in/min, and the cut depth to 40 mil (that's 1270 mm/min and 1.016 mm for you metric people... the code is actually metric, but I have speeds and feeds referenced to mils in my head, so there are a lot of things like "#<_feed> = [0.04 * 25.4]"). I had been using 25 mil cuts and ~45 in/min feeds, so it's a big improvement. I guess the moral of the story is that I don't have to baby my machine so much.
Anyway, the pictures you actually wanted to see: