Meh. I'm enjoying that part of it. Lets me learn a new thing, and I enjoy that.Yup. The more I hear about the Ender3, the more I hate it - it suffers from the same "you gotta change out half the printer to make a printer that isn't a piece of shit" problem as every other shitty chinese printer. At least chinese printers have mostly stopped burning down people's houses...
It was my experience with the A8.Meh. I'm enjoying that part of it. Lets me learn a new thing, and I enjoy that.
0) adjust the rollers so that they're making good contact on the extrusions. Not so much that they deform the rollers, but enough that the bed doesn't wiggle when you give it a tug.
Go to the store you got your MOSFETs, and buy some NTE585 diodes. (Or 1N5819, or MUR140, or whatever's available for a 1A/40V schottky)Makin' dildos for my dildo maker.
Specifically, following @gee's advice and adding separately fused MOSFETs for the bed and heater block off the mainboard, so I made a dildo that'll hold them to the back of the PSU.
Also, I seem to have dicked up the MOSFET control of the extruder cooling fan (it's always at 100% even when commanded 0, which means that either I bridged something when I soldered the daughterboard to the main, or managed to ground out the new MOSFET), and the non-MOSFET control of the board and tip cooling fans, so I ordered a new mainboard for the dildo maker that'll be here this afternoon (gonna flash it to Marlin, then install it). Seems like the safest way to not burn down my house before I go ahead and buy the fancy pants 32 bit upgrade board for the dildo maker.
I'm more worried about the power connectors on the board moving ~20A than I am about burning the MOSFETs again.Go to the store you got your MOSFETs, and buy some NTE585 diodes. (Or 1N5819, or MUR140, or whatever's available for a 1A/40V schottky)
Solder these to the heater/fan/heatbed terminal blocks on the underside of the board. Stripey end to positive output, ass end to the negative.
That should keep the onboard FETs out of latchup. Hell, with that done, you shouldn't need the external MOSFETs.
Well, with this bandaid, I can probably wait until he gets it right.Oh, I was bouncing messages back and forth with the 32 bit board guy... no inductive catch diodes on that one either. He's adding them but you might have to bodge them on for the 1st release of the board.
Connectors on the board should be moving <10A since it's a 24V printer, it should be OK.I'm more worried about the power connectors on the board moving ~20A than I am about burning the MOSFETs again.
But if the diodes will help as an additional level of protection, I'm not opposed to going out to get them.