[-] ShadowRam@kbin.social 1 points 8 months ago

hahaha... it saddens me that only those >30yrs old may get this.

[-] ShadowRam@kbin.social 1 points 10 months ago

government regulation to force companies to begin using a modular system

Yeah, that's fair. But the issue is also similar to cell phones.

Each battery is unique because it needs to fit the unique layout of the vehicle. Not to mention the battery tech is moving so fast, that the chemistry of the battery itself is changing every few years.

I suspect China's approach to a vehicle where you hot-swap the batteries instead of charging will be the way it goes. Someone will do it, it will be most $$$ efficient and therefore profitable, and then it will force them all to adopt the same approach.

[-] ShadowRam@kbin.social 1 points 10 months ago* (last edited 10 months ago)

Stuff with motors are, like air con and refrigerators. Those are better left on AC.

No. Trend is they are all showing up with frequency drives. Of which those inverters are rectifying to DC before making their own AC.
Efficiency gains are massive of a frequency drive , hence why they are doing it.
Would be even better if they could drop the first rectifying circuit and just use the inverter portion only.

You lose very little by rectifying AC

You lose a lot actually in all the small cheap rectifiers that are in every device in the house.

Where a single purpose designed FET rectifier that is built for efficiency at the breaker would be drastically better.

[-] ShadowRam@kbin.social 1 points 10 months ago

You wouldn't have to.

Every device instead of having an expensive PD communication device in it, would have an even cheaper PWM DC Step-down.

No communication needed.

Each device would just draw what it needs to.

[-] ShadowRam@kbin.social 1 points 10 months ago

_ It wants 3.3V, or 5V, or 12V, or 48V, or 18.7V,

Exactly

That's why if you had a 110VDC supply at the wall, you do a simple PWM step-down to the required voltage in every device.

LOADS cheaper/efficient than any USB-C PD circuit...

Saves on transformers, saves on dozens of USB PD wall outlets, saves on communication needed to communicate the PD required between each device and every USB PD wall outlet.

Much cheaper. More efficient.

If only the wall was 100VDC instead of AC

[-] ShadowRam@kbin.social 1 points 10 months ago* (last edited 10 months ago)

Well, I mean if you don't understand power electronics I don't see how you can make that statement.

[-] ShadowRam@kbin.social 1 points 1 year ago

Looks good!

[-] ShadowRam@kbin.social 1 points 1 year ago

Nice,

Central vac's were pretty popular in the 90's. You don't see them that much anymore.

[-] ShadowRam@kbin.social 1 points 1 year ago

wait, what?

You've extruded into air through a 0.4 nozzle and you got 0.6mm worth of die swell?? That seems excessive for any filament type.
What speed did you extrude that at?

There's just no way I could believe you could extrude into thin air through a 0.4 nozzle and end up with 1.2mm worth of swell of any material, unless it was going through an actual chemical reaction.

Something that expands THAT much after extruding would leave a monumental mess.

[-] ShadowRam@kbin.social 1 points 1 year ago

I'm not the individual who created this item. I just shared it.

[-] ShadowRam@kbin.social 1 points 1 year ago

Not my design, but you are right. If I were to make this , I'd print it in the orientation shown but the bottom would be flat to give a better foundation for the print.

That said, I'd probably split this down the middle, and make each clip its own clip, and print the clip on its side.

That way you don't have to worry about overhangs and the print 'grains' would be in a better orientation for the spring like effect.

[-] ShadowRam@kbin.social 1 points 1 year ago

Why isn't kbin magazines in that list of communities?

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ShadowRam

joined 1 year ago