trying to get the damn cable chain off and the rest of it departed leaving the last link stuck in the plastic piece in front to the buffer block. I have it twisted out at about a 45 deg angle but I’m genuinely afraid of breaking something. Don’t really want to tug on the cables any more than I am already. Tried slipping a screwdriver behind it and prying - which is what got it to 45 deg.
What are the secrets here? The little video clip in the wiki shows the guy doing it easily - I bet those pins have been “massaged “ to make it release like that.
To be honest, I don’t even know what this is about. You haven’t posted any photos. You mention the wiki, but don’t provide a link. Most people just ignore things like that, not out of disinterest, but because everyone starts off with a big question mark floating over their head.
Bear in mind: We don’t have your device right in front of us.
The help a forum can provide is only as good as the information you provide. Why don’t you post a photo of your problem / cable?
Also, this isn’t a fast-food chain - if you want good help with such specific problems, it might take a little longer. Keep in mind that this is a global, international forum; everyone sleeps at different times and isn’t allways online. It’s summer, so things are a little calm here.
When I look at your profile, it seems like you only active once every 6 months…
Given the problems with the fan, I assumed that people here in the H2D forum were largely familiar with the problem and its replacement and have run into similar problems. How could you own an H2D and be unaware of this issue? And If you’ve never taken the cable chain off then I suppose you really don’t know what the problem is and can offer no help. The Wiki article is here: Replace H2D/H2C Extruder Connection Board/TH Board/FPC Cable | Bambu Lab Wiki
I politely asked you for a link and some photos, and now you’re just ■■■ in front of the forum?
That’s definitely going to encourage people on the forum to help you. Do you realise that these people do this in their free time and aren’t your personal 24-hour help desk?
You can’t just turn up after six months, complain that people aren’t responding immediately, and then say something like that. Jesus!
Thanks to that link, I now know what this is about, too. Yeah, it’s already been discussed in the forum, but don’t count on me to help you now - just use the search function. Honestly, you definitely won’t get any more help from me now.
I’ll be very brief… To do certain things you need the right tools, or at least a purpose made pin, which could be 3D printed. I’m not sure of the exact translation, but I’m talking about pins for micro connectors on low voltage circuits. If you crimp the wires, you’re screwed. If you bend the pins, you’re screwed. If a connector comes out crooked, it’s better to gently reseat it and try again… be gentle… you need the right pins, google for them around…
It’s been awhile since I removed this on the machine at work but I remember it being a little difficult to get the cable out. I moved the cable around at different angles with light pressure and it finally released from the clip. I also remember it went back in much easier.
Therre’s a big retainer at the top - trying to figure out if rotating toward the retainer or away is the better option - but then the last two legs must have pins into the part that receives them. I had removed the buffer assembly but the buffer provides some added stiffness to the back panel that might be necessary to resist the twisting force required.
I had to change my TH board 2 days ago (I had issues with the laser or cutter module connector), and the cable chain removal has been the most difficult part of the job!
I cannot help you sorry as I cannot exactly say how I did detached it from the back panel without damaging anything, but I remember I had wiggled it for a long minutes before seeing it popped out without any particular or very strong pull. So no need to insert any lever or screwdriver, I would say you just have to pull and/or twist the right way
It’s just an ordinary cable chain that needs a little force and some wiggling. Of course, if the rest of the cable chain is missing, it becomes unnecessarily complicated because there’s no leverage. What’s shown in the wiki is indeed correct:
As I mentioned, if the rest of the cable chain is missing as shown in the photo, there’s hardly any way to grip it or wiggle it. However, that’s not a unique mechanism - it’s the same for almost all cable chains.
If it breaks, which shouldn’t happen, but just in case it does, the replacement chain can be ordered for a few dollars. Normally, though, they’re elastic enough, because that’s the intended way to remove them.
Like I said, it’s just a regular cable chain. Just gotta generate enough force to bend the pins. It’s also helpful to arrange the cables a little so they don’t press against the pins from the inside.
