priinter base supply region got fried...::o The AC power supply goes into the weird box, and then goes into the motherboard/base. I recently changed the hot end (cartridge and everything-got it from [www.ebay.ca]), and I have noticed that the wires bringing electricity into the base (the negative one, from the box to the base) gets really hot. I realized I put my square fan on wrong, so I reconfigured the wiring, until now. I left my print, and when I came back it showed me the start screen, now the head is black, the rubber is melted and the metal near it is a bit deformed. Just goes to show how damn hot the wire got. It was still functional though, as the LED screen still worked. I need to replace the green thing you screw the wire into. INFO: I use MKS base V1.4 on prusa i3 electron (basically Migbot) Questions: -is there a difference between the two wires of the heating cartridge?--The one I am using is 12V, i dont know which V the printer came with, did not specify-- because I can't see one! Could that be the problem? -Can i replace the head the wires go into or do I need to get a new base? Here is an image, don't worry, link is safe : [github.com] although he is using a V1.2 board. THE HEAD WHERE IT SAYS "POWER SUPPLY". Many thanks if you can help me. I'm getting worried as hell. https://reprap.org/forum/read.php?262,747738,747738#msg-747738 Mon, 13 Jul 2026 20:24:45 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?262,747738,752930#msg-752930 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,752930#msg-752930 Hedgehog Printing Fri, 03 Mar 2017 10:51:28 -0500 https://reprap.org/forum/read.php?262,747738,752289#msg-752289 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,752289#msg-752289

If you never ever have soldered something bevor, maybe you should not start with it on this board - might get completely damaged, if you do not know what to do.
I fear best advice would be to find somebody near you, who is able to do the soldering and maybe teach you a little bit of soldering and electricity, cause you might need it in your future.

The error that caused the terminal block to melt was, that the wire got loose in the terminal block, and so the block got burnt. Call yourself lucky, your house did not burn down. - There are already some Reprapers who managed to do that.

Why the wire got loose? - Maybe it was not tightend enough, or maybe it was overtightened and thus breaking the terminal block.

So please take care of yourself and your Family and learn how to work with electricity without danger to you or anyone else. - And I hope you already installed a smoke detector near your 3D-printer - if not, well... I think you should do immediately.]]> Dancer Printing Wed, 01 Mar 2017 04:48:30 -0500 https://reprap.org/forum/read.php?262,747738,750783#msg-750783 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,750783#msg-750783
Quote
o_lampe
Why don't you grow some b@ lls and trust your own conclusion? The necessary information is there... :)
gee. u is very nice! i dont trust myself cuz i almost fcked up my motherboard when i wired it, im new to this stuff and i should be careful...

no hate. just saying. peace :)]]> Hedgehog Printing Wed, 22 Feb 2017 13:55:51 -0500 https://reprap.org/forum/read.php?262,747738,750635#msg-750635 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,750635#msg-750635 o_lampe Printing Wed, 22 Feb 2017 03:29:34 -0500 https://reprap.org/forum/read.php?262,747738,750586#msg-750586 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,750586#msg-750586 thank you all for your amazing help!!!
i really learned from yall]]> Hedgehog Printing Tue, 21 Feb 2017 21:41:29 -0500 https://reprap.org/forum/read.php?262,747738,750047#msg-750047 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,750047#msg-750047 these websites would work, wouldn't they?
[www.ebay.ca]
[www.ebay.ca]

and the solder iron:
[www.ebay.ca]

i live in canada. so yeah, .ca at the end]]> Hedgehog Printing Sun, 19 Feb 2017 19:22:26 -0500 https://reprap.org/forum/read.php?262,747738,750011#msg-750011 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,750011#msg-750011 o_lampe Printing Sun, 19 Feb 2017 15:47:37 -0500 https://reprap.org/forum/read.php?262,747738,749948#msg-749948 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749948#msg-749948
here is another google link:
[drive.google.com]

so.. help me decide please. :(]]> Hedgehog Printing Sun, 19 Feb 2017 10:41:02 -0500 https://reprap.org/forum/read.php?262,747738,749943#msg-749943 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749943#msg-749943
Quote
o_lampe
According to the BOM list of RAMPS 1.3 the green connector is called:
MSTBA 2,5 and MSTBT 2,5 (5.04mm spacing 4 connector)

It's not the same as yours and MKS is closed source, but if you look for Phoenix Contact resellers and find the right connector spacing you are on the right path.

If you are able do unsolder the burnt connector, you can solder the wire directly to the board and use any decent RC-Hobby plug you like. ( Deans T-connector or hobbykings XT60 )

AND!!! uh... your mstbt/mstba 2,5 things all give search results for several wires of input, is there one that has only one?]]> Hedgehog Printing Sun, 19 Feb 2017 10:01:40 -0500 https://reprap.org/forum/read.php?262,747738,749942#msg-749942 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749942#msg-749942
Quote
sigxcpu
My MKS Base 1.4 had weak solder point on both green sockets (power & bed). When playing with the screws, they move a little and the socket terminals get loose in the PCB. Found that using a thermo camera wondering why the sockets and the first 4-5cm of wires had 55 degrees C compared to 30 degrees for the rest of the wire.
So get cheap soldering iron, new sockets (they are called screw terminal blocks or something like this) and make sure you create strong electrical and mechanical connections. Also check if they are 5 or 5.08mm pitch, I don't know.

wow! thanks. The first 3 cm of wires of mine got melted, blackened and burned... must be something like a bad soldering job... SO! how do i unsolder those green blocks??? they are loose, I give them that, but i have tried pulling them off. only by hand, I just checked bmy heat bed terminal block, it is loose too. should i replace that? also, what is the pitch? the distance between the two points going in?

but really, how the hell to you get those blocks off... and thanks O_LAMPE for the suggestion of skipping the block step. the random connectors seem interesting

OH YEAH!!! is there any specification of soldering iron, what temperature it must reach or its voltage etc.?]]> Hedgehog Printing Sun, 19 Feb 2017 09:55:39 -0500 https://reprap.org/forum/read.php?262,747738,749861#msg-749861 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749861#msg-749861 BOM list of RAMPS 1.3 the green connector is called:
MSTBA 2,5 and MSTBT 2,5 (5.04mm spacing 4 connector)

It's not the same as yours and MKS is closed source, but if you look for Phoenix Contact resellers and find the right connector spacing you are on the right path.

If you are able do unsolder the burnt connector, you can solder the wire directly to the board and use any decent RC-Hobby plug you like. ( Deans T-connector or hobbykings XT60 )]]> o_lampe Printing Sun, 19 Feb 2017 03:03:57 -0500 https://reprap.org/forum/read.php?262,747738,749859#msg-749859 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749859#msg-749859 So get cheap soldering iron, new sockets (they are called screw terminal blocks or something like this) and make sure you create strong electrical and mechanical connections. Also check if they are 5 or 5.08mm pitch, I don't know.]]> sigxcpu Printing Sun, 19 Feb 2017 02:51:04 -0500 https://reprap.org/forum/read.php?262,747738,749852#msg-749852 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749852#msg-749852 what would the green thingy be called-- i just looked. again. tried random keywords, come with nothing--? and ur anet is obviosly based on the prusa i3 :). There is a problem... i do not have a soldering iron. I do not know how to use it. i will try:

turn it on, however you do that, and it gets hot. melt the ends of the metal u want to connect and put them together?
and you get these irons through walmart or i can rent them in home depot or rona or something?

Oh yeah and how do i get the destroyed one off? i am sorry i am basically clueless, i am new to these things. i suppose thats what forums r for tho...]]> Hedgehog Printing Sun, 19 Feb 2017 00:35:34 -0500 https://reprap.org/forum/read.php?262,747738,749849#msg-749849 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749849#msg-749849 Supermec Printing Sun, 19 Feb 2017 00:23:03 -0500 https://reprap.org/forum/read.php?262,747738,749847#msg-749847 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749847#msg-749847 Does anyone, ANYONE, know how to replace the green part that got destroyed?

Here are three images, uploaded to google drive. You do NOT need google to access. only the link :). i do believe it is safe.
right click/or/ control click link and select copy link and paste it into a new tab if you do not believe me

[drive.google.com]
[drive.google.com]
and the full view:
[drive.google.com]

As you can see, i am using an MKS 1.4 base, question:::

can i replace the green burnt part or do i need to replace the board? the green part is now unusable, i have tried. melted rubber too stronk man.]]> Hedgehog Printing Sat, 18 Feb 2017 23:15:13 -0500 https://reprap.org/forum/read.php?262,747738,749836#msg-749836 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749836#msg-749836 Hedgehog Printing Sat, 18 Feb 2017 19:39:36 -0500 https://reprap.org/forum/read.php?262,747738,749835#msg-749835 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749835#msg-749835 Hedgehog Printing Sat, 18 Feb 2017 19:36:42 -0500 https://reprap.org/forum/read.php?262,747738,749727#msg-749727 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749727#msg-749727
3D printers mainly have a single pair of wires connecting the power supply to the control board. On 12V printers the extruder heater and bed heater, when heated together, draw around 16 amps from the PSU. To this must be added the power for the steppers and the board itself. If there is the slightest internal resistance in the connection, the high current flowing through it will cause heating. This is not initially serious, but will cause the wire end to distort under the screw. When the high current switches off, the connection will cool down, except that the wire is not held quite so tightly as before. The next time the high current is turned on the connection resistance is a little higher so it heats more and distorts more.

This process repeats over time as the printer is used, until it gets to the point where an arc can start. Think of an arc as a continuous spark. Arcs are very hot and the rate of heating in the connection rises enormously. This will melt the plastic parts of the connections and the insulation of any wires connected to them.

The only way to prevent this, is to fit what are known as crimp-on cable connectors to the bare ends of the wire. These can be screwed down hard on the connection and do not distort, so that the heating situation cannot arise.

You should be concerned about the cartridge, as there is no guarantee that it is not faulty. If its resistance is significantly lower than 3.6 ohms, then the current drawn will increase and the heating effect is proporional to the square of the current.]]> Supermec Printing Sat, 18 Feb 2017 10:11:37 -0500 https://reprap.org/forum/read.php?262,747738,749713#msg-749713 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749713#msg-749713 Hedgehog Printing Sat, 18 Feb 2017 09:45:17 -0500 https://reprap.org/forum/read.php?262,747738,749611#msg-749611 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749611#msg-749611
The other thing that can cause heating problems is arcing in plain screw connections. Fit some crimp-on connectors to the power wires and then make sure the connection screws are tight]]> Supermec Printing Sat, 18 Feb 2017 03:38:13 -0500 https://reprap.org/forum/read.php?262,747738,749607#msg-749607 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749607#msg-749607
Also make sure, the heater element is tight in the hotend and the wires provide good contact with the screw terminals of the controller.]]> o_lampe Printing Sat, 18 Feb 2017 02:40:00 -0500 https://reprap.org/forum/read.php?262,747738,749589#msg-749589 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749589#msg-749589 Hedgehog Printing Fri, 17 Feb 2017 22:15:45 -0500 https://reprap.org/forum/read.php?262,747738,749588#msg-749588 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749588#msg-749588 Hedgehog Printing Fri, 17 Feb 2017 22:15:32 -0500 https://reprap.org/forum/read.php?262,747738,749568#msg-749568 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749568#msg-749568 Viper97 Printing Fri, 17 Feb 2017 17:51:28 -0500 https://reprap.org/forum/read.php?262,747738,749529#msg-749529 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749529#msg-749529 Hedgehog Printing Fri, 17 Feb 2017 15:16:43 -0500 https://reprap.org/forum/read.php?262,747738,749499#msg-749499 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749499#msg-749499 Viper97 Printing Fri, 17 Feb 2017 13:16:05 -0500 https://reprap.org/forum/read.php?262,747738,749473#msg-749473 Re: priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,749473#msg-749473 Hedgehog Printing Fri, 17 Feb 2017 11:37:16 -0500 https://reprap.org/forum/read.php?262,747738,747738#msg-747738 priinter base supply region got fried...::o https://reprap.org/forum/read.php?262,747738,747738#msg-747738 www.ebay.ca]), and I have noticed that the wires bringing electricity into the base (the negative one, from the box to the base) gets really hot. I realized I put my square fan on wrong, so I reconfigured the wiring, until now. I left my print, and when I came back it showed me the start screen, now the head is black, the rubber is melted and the metal near it is a bit deformed. Just goes to show how damn hot the wire got. It was still functional though, as the LED screen still worked. I need to replace the green thing you screw the wire into.
INFO:
I use MKS base V1.4
on prusa i3 electron (basically Migbot)
Questions:
-is there a difference between the two wires of the heating cartridge?--The one I am using is 12V, i dont know which V the printer came with, did not specify-- because I can't see one! Could that be the problem?
-Can i replace the head the wires go into or do I need to get a new base? Here is an image, don't worry, link is safe : [github.com] although he is using a V1.2 board. THE HEAD WHERE IT SAYS "POWER SUPPLY".

Many thanks if you can help me. I'm getting worried as hell.]]> Hedgehog Printing Sun, 12 Feb 2017 11:55:06 -0500