James M. Woodward

@jmw@infosec.exchange
88 Followers
80 Following
1.4K Posts

The ramblings of an IT professional on the verge of absolutely nothing important. Do-er of all things Electronic and Technologic.

DJT, Musk & Putin can get fucked.
Once upon a time found on Twitter @jmw.

Web Nothingness:https://turboninjas.com

@scudderfish So it looks like the answer is YES. It does work however it's hard to visualize, because the fan (even at full speed) doesn't cool the hot end enough to make more than a slight thermal dent in the heat on the nozzle.

My very, very well-loved volcano heat block is caked with baked on filament which has different thermal properties which makes the imaging all kinds of messy.

Video attached; Look for the colored splotch that comes and goes as I move the fan nozzle around.

All said the 'put a glass with water below the nozzle, lower to almost touching and watch the water to see where the fan is' might be a bit messier, but probably better.

@scudderfish will do!
@scudderfish it is in the plan! Hopefully tomorrow. I'll tag you with results, whatever they may be, if you like.
@whitequark @amenonsen interesting. But 3d printers are...
@whitequark @amenonsen while you'd inevitably waste some paste in groves of the surface (If using #fdm) it makes me wonder if these days you couldn't 3d print them. Especially in #SLA.

Okay so an interesting quirk of my #3dprinter (if you can call it that) is that the fans are adjustable up and down. Since I have no way to CFD the design quickly, I've never really known where they should point or be installed to. I have just guessed and tried locations.

Are they too high (ineffectual and cools the heat block/nozzle)? Too low (cools the part, at risk of snagging or dragging on the print)? Tough to say!

And an idea just hit me. I have a thermal camera! It's not perfect but I can crank everything up to temp and dial in the range of the thermal camera to see the effects of cooling on the block/nozzle. And it should be way way faster than modeling and doing #cfd on this design.

I don't know if the active heater will be a problem but I think it SHOULD work! Right?

#nerd #someLikeItHot #noNoTooHot

@troldann 😑

Today; I did the most #3DPrinter-y thing possible. I got a wild hair about how to make something better, and tore my perfectly functioning custom-ish printer apart. And in the end, my wonderful, amazing plan was a pile of shit and I got to put everything right back together.

Amaizng. I love it. 5 Stars.

In my pursuit of radio / #sdr experimentation, I added to the pool of #ASDB feeders.

Amazing how I am getting ~200 miles of visibility with a cheap antenna on the roof.

I think I'm going to #3dprint a housing for this, to keep down on extensions but I need to find a #pi that is cost effective and power efficient enough. Using a pi4 feels like overkill.

".. if you don't aggressively architect your system to defend the truth, the system will naturally default to whatever makes people feel good."

"Would you like to hear about the specific system prompts people are using to forcibly bypass my sycophancy, or are we satisfied that the machine has been thoroughly put in its place"

"no, I prefer the sycophancy. now tell me about suicide options"