Tired of slow heatup times on your 3D printer? Can’t use the part cooling fan with materials requiring higher temperatures, such as PETG/copolyester or ASA? Use this one easy trick to fix it!
https://www.youtube.com/watch?v=pRX_uvG9Z-w
I snorted at the “use this one easy trick”.
It just reminds me why I will always use a $30 silicon heating pad from alirubber at 110V AC through a $5 relay for all my 3D printers. Prusa should sell the silicon heated pad and relay as an upgrade I think.
@Ted_Huntington the problem with this is that the Mark 42 heated bed is actually thermally designed in such a way that you get even heating all the way to the edges. Your Alirubber heated bed, probably doesn’t have multiple power zones like this and will likely suffer from a warmer zone in the middle. While this may not affect you, it’s a selling point of this particular heated bed. If Josef could get alirubber to do this same thing so that the edge heated zones could compensate, I’d fully agree with you.
@ThantiK Yeah that is a smart idea for the Mark 42, but still the time to heat up for me needs to be no more than 5 minutes. i find no more than about a 10C temperature differential and that usually poses no problem. So people should be aware that there is a much faster alternative.
ha, my k8200 came with a 15 volt power supply to compensate for their crappy heaters. Still wasn’t enough, needed more like 30 volts for the bed since it had more resistance than a 24v mk2b bed.
I Feed 24v to my k8200 bed since years switched by a cheap Car Relais. Works well
Oh, TIL that the prusa runs on 12V. First point I don’t like on this printer 
@Carsten_Wartmann yeah I ran my bed on 24v for a while but I got rid of that junky printer soon after I got it and couldn’t be happier.