oromie
August 25, 2017, 3:36pm
1
So i’m a complete beginner here. I got my 3d printer and assembled it yesterday. When i turned it on i tried the preheat for pla option, but when i selected it, the screen would become blank and dim, and then it would just restart. I did a few quick searches and found something about a switch in the power supply. I checked and it was on 220V, so i switched it to 110V (the printer was off at the time). And plugged it in (i’m in europe where the standart for power outlets is 220V, also i’m not that well versed on this). And i heard the cracking sound, there was smoke coming out of the power supply. Can anyone tell me: 1. why the pre-heating wasn’t working? 2. Is my power supply dead for good, or can i repair it (i can do soldering, also saw there was a fuse in it). 3. What are the chance that more than just the power supply were damaged?
gikam
August 28, 2017, 6:33am
2
The fact that the printer resets when you preheat is a sign that the power supply may have some problems, When you switched to 110 v u sureley damaged it for good. You may try to replace the fuse or buy a new one.
Mavyre
August 28, 2017, 6:39am
3
Putting 220V on a 110V power supply will surely burn it instantly. You’ll have to replace the whole power supply. If the blank LCD issue persists, verify all the motherboard wiring. If it is still not working, I’m pretty afraid you have a faulty motherboard…
oromie
August 30, 2017, 12:16pm
4
Is the identical one at gearbest the only replacement option? Or is there something better and more powerful, because if the reason my printer was rebooting is the faulty power supply id rather get something better
tkuan
August 30, 2017, 2:19pm
5
There are few things I learn on my A8. The connector on the bed burnt within 40 hours of printing. From I can find on the internet is to replace the power supply with a 24 volt power supply. To do that, you will need to replace both fans, the heating component on the nozzle and the heatbed to 24v. I am in the process of doing that, but it is a long process to get them in place. The short term solution is to get a replacement 12v power supply, so you can get it running soon. The stocked power supply is capable of doing daily printing. I have no problem with the stocked power supply, other than watching out for your heatbed connectors on the heatbed and on the controller board.
gikam
August 30, 2017, 4:40pm
6
Does a PC power supply have enough current on 12 V?
tkuan
August 30, 2017, 5:19pm
7
Yes, that is an excellent idea. People call them ATX power supply. You can look it up on the internet. There are a lot of people converting ATX power supply into a 3D printer power source. However, the ATX power supply can’t be turn on until there is a load, and there are two pins to connect together to turn it on. As I understand, you can also use 24v(+12v and -12v) from the ATX power supply. I have not tried a ATX power supply, but I am in the process to converting a HP server power supply into a power source.
