Hey, I was planning on building a diy drying box for the U1 with the original feeders. Therefor I need an extension cable about 30cm long and I was just wondering which kind of connectors were used…
To me it looks like jst gh is the most likely but I dont know for sure
You may have to wait till you receive your machine, then match them, rather than matching them from sight.
I am planning the same extensions. I am waiting for my U1, too, but I am almost sure that it is this connector: www.aliexpress.com/item/1005005699355153.html
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ok thanks, yes that looks quite promising. If you are interested in buying them earlier too I can tell you if they fit as soon as my printer arrives.
Don’t worry, I have purchased already these connectors. 
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I can confirm, these connectors are used.
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I am searching for extension cables too. Have you already ordered the connectors somewhere? I am planning to order from RS
This ist what I am planning to do: Reddit - The heart of the internet
I did yes and they fit…
However I dont really like the crimps from the aliexpress link viktor sent I would recomend buying precrimped cables and just fiddle them in the connector itself and just solder everything together it is a lot easier and also you have to be quite good at soldering (I am decent at soldering and it took me 5 connectors and 3 hours)
What are the options you need to select? Thanks in advance.
Here is what I got:
-Cable
-15 connector male and female
-precrimped cable
However you probably can get the cables from a cheaper source I just ordered them from amazon so that they arrive sooner. Also if you are able to crimp those connectors yourself you can just get a few cables yourself and the crimps over the same link as the connectors however they are really fiddly…
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I will be soon releasing a kit for purchase, that will replace the original cables. Few steps to clear.
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The specification is: GH1.25
Not sure if this is allowed but found these premade on ali. I ordered the connectors and used some wiring i already had but didnt enjoy soldering the cables to the female connectors so i ordered a set. They were heat shrinked around the female connectors and work like a charm using the rotating feeder mod.
5/10pc GH1.25 wt Latch Female Male Extension 26AWG Silicon Cable JST GHR-15V-S SSHL-002T-P0.2 Crimp 2P-15P High Temp Resist
https://a.aliexpress.com/_mrR4rUd
Edit: fixed the link.
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That’s not a proper link…
How long are the cables? Unfortunately, I can’t find any information about this.
They are 20cm. I ordered them. You can also write the seller to only get 2pcs instead of 5. The longest extension cables I could find that go with these are these 1m long ones: https://de.aliexpress.com/item/1005010757575881.html
..But I might have ordered them in the wrong direction, I chose reversed direction.. 
I still have to check that with a multimeter. I didn’t yet test them because the RFID Antennas are not (easily) extendable past +40cm…. which I’d need for my use case. Only extending the feeders doesn’t make sense for me… but I’ll try the next days just to confirm it’s working. I doubt there will be the same issues with extending rfid antennas.