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Cake day: July 4th, 2023

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  • For AC power, capacitors don’t effectively store energy for later, and would change the power factor to make the resistive load reactive which can bring down the efficiency of the power transfer. For AC power a big ol resistive heater is probably as efficient as you can get, which is part of why those kettles are so simple and boil water so fast.

    A kettle that stores energy would need to use DC power, converting it from AC and probably have a very large capacitor, more likely a battery.









  • Not a mistake, I’ve got an ender 3 and a cr10. Both are fine, keep your expectations realistic and calibrate each axis, especially the extruders. Use PLA, consider getting a new build plate if your prints won’t stick. I recommend flashing firmware on the ender 3 unless you know what was loaded onto it last, doesn’t have to be fancy firmware just something you know for sure is configured for your printer. A cr10 should probably get firmware as well but I never loaded new firmware on mine and the controller is older so I’m not sure if it’s a good idea.

    Don’t forget the cost of filament, if you print a lot you may spend more on filament in a year that your printer budget.