I had a print fail in a fashion that enveloped the hotend in globs of PLA. The printer then managed to force it over the poop shoot which deformed the polycarbonate (maybe acrylic) which sprang back but it managed to break the lower connector that connects the thermistor on the hotend to the printhead. My plan is to go find a little 2.0 mm connector (or whatever it is) on Digikey or Mouser, then repair the board. But I would have happily have purchased these board, but can’t find them anywhere. Any ideas?
The board description is:
About 6mm x 24mm eyeballing
two plated holes (H1 and H3) for the hex-head fasteners
two non-plated holes
J3 is 8-pin rt-angle connector carrying 24 volts to the hot end, and the thermistor signal to the K2
J2 is 2-pin straight for the NTC thermistor
J1 is 2-pin straight for the heater
Other silk screen on the top layer reads:
F008-H_V13
20240520
Silk screen on the back of the board reads:
F008-H-V13
94V-0 UR
E469747
HQP08-2
Any one have any ideas where to purchase one of these?
Is this the part ?
Creality K2 Plus Hotend Circuit Board Hot End PCB for K2 Plus 3D Printer Accessories
https://a.aliexpress.com/_mqD6SQx
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I believe what your are describing is 2101030239 module PCBA. mounted on the front right of the hot end assembly,
The two thermistor pins and connector on mine broke off the board and the print failed. I contacted Creality support and they were kind enough to send me a replacement.
While that was shipping, to get the printer running again, I used cut off wire from a capacitor (selected to get the wire size that would fit the board and hot end thermistor connector) and rebuilt the board connector without the plastic shell. This has an effect on the temperatures the thermistor in the hot end reads low due to the different metal/solder contact in the connector. I had all the symptoms of low temperature printing (bad bed adhesion, weak prints etc). ABS printed ok but PLA was a nightmare until I raised all the hot end temperatures. In retrospect I should have run a temp tower. With everything up ~10C ( your results may vary) it printed like new at least until the new board arrived. Note the colours of all the connectors now are black. Kudos to Creality for caring for their customers!
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Solution -
Creality Tech Support found the part:
K2/K2 Pro/K2 Plus Hot End Adapter Plate - Creality Part Number: 4004010288
In the meanwhile I was able to find a connector to repair my damaged board.
The Molex brand, “CONN HEADER VERT 2POS 2MM” Part Number: WM18920 was $0.25 (twenty five cents US) in quantity 1 from Digikey. https://www.digikey.com/en/products/detail/molex/0353620250/749944
I have repaired my broken board with the Molex connector, and have purchased 10 new boards from Creality for the next few times this happens.
Issue resolved. Creality Customer Support = A+
@Cannonman
“I believe what your are describing is 2101030239 module PCBA. mounted on the front right of the hot end assembly,”
I think you have found the exact board. I don’t know why the PN you have is slightly different from the one Creality gave me. Maybe we’re in different countries? Or maybe Creality has changed PN’s over time? Either way, thank you so much for the help!
@Chris.S_NZ
“Is this the part ?
Creality K2 Plus Hotend Circuit Board Hot End PCB for K2 Plus 3D Printer Accessories
https://a.aliexpress.com/_mqD6SQx”
No, that’s the board that connects to the J1 connector on the board I’m looking for. But thank you for the link. I purchased your board for an extra spare as well as several others from Ali Express. I didn’t know Ali Express had Creality parts. Thanks man!
@ Barry
“Do you mean these? Creality K2 Toolhead Heater/Thermeristor Board Breakout Board”
YES! That’s it! Thank you for the link! I was unaware of the site as a source for parts! Very cool. Thank you Barry!
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Hi, good news… question on this.
How long have you had your K2 & do you have any idea what causes the failure ? I e. Is it printing lots of high temp ASA/ABS filaments related or just random part failure
Cheers
Chris
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@Chris.S_NZ
In this case I was just printing PLA. But I didn’t prep the baseplate with fresh glue, I didn’t supervise the first five layers of deposition, I did just start the print and head off to bed.
There was an issue with the first layer’s adhesion to the bed, which snowballed into a big mess. I think purchased this back in January or February, and have not seen a failure like this before. Normally the nozzle will jam or the filament will break or the print will start stringing. I suspect my recent failure was the equivalent of un-attended catastrophic stringing. I would have hoped the “AI camera” would have caught this, but nothing is perfect.
I really like the K2 Plus, am 100% happy with it as a product. I’ve printed tons of different materials from PLA and PET-G to CF-PA, GF-PA, CF-PC, and TPU. This printer “just works” as long as the first few layers are well adhered.
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