Redpepper’s video description boasts: “While only a prototype, the fastest There’s Waldo has pointed out a match has been 4.45 seconds which is better than most 5 year olds.” If this is a competition, we really can’t win against the machines.
The Death Star post illustrates why we shouldn’t let economists decide how to run things. That and a million other stories from real life.
You can not do it much more complicated! If you want to heat your print bed by induction, it has to be ferromagnetic to work with a commercial induction cookers coil. And using the copper coil as resistive heater is also no good idea.
It’s just sensible to avoid risks where you can. If it doesn’t cost much extra, why not bother? Tinkering with a 3D printer is likely to take concentration away from other areas. Low voltage is intrinsically safe from electrocution. Don’t make things dangerous for yourself.
Remember that, across the same resistance, power goes up with the square of voltage; 120v RMS can deliver 100x the wattage of a 12v supply, and 240v delivers 400x.
Samsung is rolling out an update for its 2018 lineup of QLED TVs that enables FreeSync, which allows for smoother gaming without screen tearing. The company talked up its partnership with Microsoft’s Xbox division during its unveiling of this year’s sets, and this is yet another feature that embraces the capabilities of the Xbox One X.
You can share neutrals among, say, receptacle circuits, if you make sure that there’s some kind of disconnecting means that opens all the conductors associated with all the circuits that share a neutral. That might be a multipole breaker, or it might be handle ties that physically tie breaker handles together, forcing all to trip if any trip.
Your friend died of what and why? Testing mains voltage across the back of his hand? Please. Mains voltage is not scary if you know what you are about. I dealt with volts up to 132KV and mega amps and megawatts in my career I worked in the UK electrical power industry.
It would require a molded socket attached to an edge with a standard IEC polarized C7 connector. No exposed conductors anywhere. Could embed a green light for powered up and a red one for hot into the socket molding.
Dude routinely welds wearing shorts and flip flops. He’s also known to weld quite a bit of galvanized steel, as he does in this video with the lifting ring. Not saying he should do any of this, but there it is.
This seems to me that your experiment failed due to thermal failure cased by insufficient cooling and not the part itself..You stated yourself that the part failed due to thermal expansion (insufficient cooling). But it’s still a valid experiment with valid results. And you show that it’s up to the designer (or designers) to design the entire product, which includes sufficient cooling. This is one area where home designs fail – a lot.
No, he is using a MC3041 to drive a BT137 which can handle 8 amps continuously (if properly heatsinked).
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