Today's learning experiences...

[johnridley]

Cheap Chinese power supplies aren't necessarily up to providing 100% of their rated current output on an 80% duty cycle (luckily this is one of those components that is easily replaced with a jumper)


Don't just start printing a big object that requires close tolerance to a piece of hardware - calibrate first.

If the filament isn't feeding, maybe it's because you forgot to tighten the idler tension down because you got distracted by realizing that the power supply just died, but you'll still fiddle with the filament for 10 minutes before realizing that.

I got the electronics for my next printer and a ridiculous box of microswitches, easily a lifetime supply unless I take up selling something that uses them. I want to build a useless machine and I'll need 3 for my next printer. I need a use for the other 400 or so in that box.

Comments

[tceisele.livejournal.com]

If they are normally-open momentary-contact switches, one way to use up a bunch of them might be to use them to make a music keyboard. The one I made a while back sucked up about a hundred of them, and could easily have used more. The second-generation keyboard that I never got around to building would have used about 256.

(I was making a particular key arrangement, where the notes followed the Circle of Fifths in the horizontal direction, and increased by octaves in the vertical direction. Which is why I couldn't just use an off-the-shelf keyboard)

[c0nsumer.livejournal.com]

Microswitches, eh? Hmm... I think you should build some sort of step sequencer. Or maybe a monome-like device but with toggles?