✧✦Catherine✦✧Jan 10
flacs
stop asking why and start asking when
Jan 10 at 1:29amMastodon for Android
Show threadaevaJan 10
@flacs i have concerns about the device overheating
Show threadMiniJan 10
@aeva @flacs water cooling, via douche || bidet?
Show threaddatenwolfJan 10

@aeva @flacs

Here's a paper our research group published:

https://doi.org/10.1038/s41598-024-55338-5

We put effing drone prop BLDC motors into (deceased humans, body donor) rectums. With enough contact area there's sufficient thermal mass provided by the – err – environment that temperature increase is within acceptable limits.

Show threadVER-1602Jan 11
@datenwolf @aeva @flacs would body heat complicate this?
Show threaddatenwolfJan 11

@wavejumper3 @aeva @flacs

Body heat isn't really an issue. You got a high capacity thermal reservoir with "built-in" liquid heat transport and ~2m^2 of thermal exchange area (skin area of a typical human).

As long as you don't push the temp locally over ~40°C (denaturates proteins) it's okay.

Show threadVER-1602Jan 11
@datenwolf @aeva @flacs huh. Neat.
Show threaddatenwolfJan 11

@wavejumper3 @aeva @flacs

A couple of months ago we were brainstorming ideas on how to build an area scanner for intra-thorax imaging, and cooling was an issue. Until we realized, that during surgeries they'd constantly flush the area with saline solution anyway, and that they preheat the liquid. So we were thinking to just cool our scanner with that, setting the preheat temp lower so that the "coolant" would have the desired temperature when being flushed into the patient.

Show threadVER-1602Jan 11
@datenwolf @aeva @flacs cool! The scanner would get hot? That's interesting
Show threaddatenwolfJan 11

@wavejumper3 @aeva @flacs

Galvanometer motors that are driven to their most extreme. Without active cooling they'd die within a minute. So we water cool them – designed our own scanner head, that doubles as a water block.

Show threadMiniJan 10
@flacs i dont like how easy this is to do, my brain gears will get whirring
Show threadZiegJan 10
@flacs https://www.youtube.com/watch?v=y-bYSC6OT6s
Rectal Computer

YouTube
Show threadΩ 🌍 Gus PoseyJan 10
@flacs I hope there's not a fire.
Show threadcassieJan 10
@flacs I’m most worried about the idea of using a 3d printed case for that
Show threadStella de Nachtvlinder ⭐Jan 10
@flacs "i use Arsch btw"