Which hotend heater cartridge is 12v and which one is 24v?
I own both the MK2S and the MK3S and have to replace the heater cartridge of the MK2S.
I have 2 spare cartridges but do not know which is one the 12v and which one is the 24v. So most probably a very stupid question but how can I measure or otherwise find out which is the correct cartridge?
RE: Which hotend heater cartridge is 12v and which one is 24v?
I had a look to the eshop, but I can't find both of them.
So I can only help with this:
- I would think that both cartridges have the same power - I think it is about P = 40W for both. If so you can measure the resistance (R measured in Ohm) of the cartridge.
- P = U * I ==> I = P / U; R = U / I = U / ( P / U ) = U² / P
(with I as current in Amper) - 12V cartridge:
R = 12² / 40 = 144 / 40 = 3,6 Ohm - 24V cartridge:
R = 24² / 40 = 576 / 40 = 14,4 Ohm
So the cartridge for 12V has the lower resistance. That is the way I would do it.
Best regards, Clemens
Mini, i3 MK2.5S, i3 MK4, CClone (Eigenbau)
RE: Which hotend heater cartridge is 12v and which one is 24v?
I do have a multimeter (mostly to see if my batteries are still ok) but I'll try to follow your advice. Thank you very much.
RE: Which hotend heater cartridge is 12v and which one is 24v?
Thank you very much again, Clemens. It worked. The values differed a bit 4.6 iso 3.6 but I assume that is to be expected.
problem solved.
RE: Which hotend heater cartridge is 12v and which one is 24v?
This is great information. I had the same issue. Mine too came in at 4 ohms so I could identify it as the 12v Version. Musch appreciated!
I had a look to the eshop, but I can't find both of them.
So I can only help with this:
- I would think that both cartridges have the same power - I think it is about P = 40W for both. If so you can measure the resistance (R measured in Ohm) of the cartridge.
- P = U * I ==> I = P / U; R = U / I = U / ( P / U ) = U² / P
(with I as current in Amper)- 12V cartridge:
R = 12² / 40 = 144 / 40 = 3,6 Ohm- 24V cartridge:
R = 24² / 40 = 576 / 40 = 14,4 OhmSo the cartridge for 12V has the lower resistance. That is the way I would do it.
Best regards, Clemens