Bambu Lab A1 Bed Replacement Guide (Avoid Mistakes)

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In this video we go step by step through the process of replacing the bed on the Bambu Lab A1. This printer was recalled and everyone was given the option to return/replace the printer or hold onto it until the new bed was ready. Well new beds are shipping and although Bambu has an official guide I found some things along the way that should make the process a bit easier.
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[@grahamhogg9802]

Thanks for the very useful video. I just received my A1 from the 2 Year sale and found that the Bed Cable was very twisted and during nozzle cleaning the cable was being hit quite hard every time. I opened up the panel with the six screws as you described, and I untwisted the cable a full 1/2 turn which solved this and looks exactly as you show at 11:55 minutes in your video. The printer was sent to me with the cable incorrectly installed! It was easier to fix this myself with your video guide, than go back through Bambu. Much appreciate your video. Thanks heaps.

[@JackPinesBlacksmithing]

Just finished mine. One thing I'll add is that some parts of the repair were easier for me when the printer was oriented on its front while leaning the uprights on a spool. It was a pretty easy repair for any hobbyist who turns a screw. While inside, I also rerouted the second ground wire so it wouldn't out any tension on the bed cable. Honestly, the tape was the hardest part for me. Great video! Thanks!

[@chris9653]

3:23 using a filament spool as a rest. A true 3D printing enthusiast

[@ModBotArmy]

lol it’s what I had 🤷‍♂️

[@johncharmelllo7353]

I opted for the replacement bed. Got it all installed with out too much trouble. Glad you pointed out how to capture that cord so it doesn't back out. That was the only thing I was struggling with. Printer has been back up and running for a few weeks now with no problems. Awesome video, thanks Daniel.

[@user-kb5jy7wz9o]

Followed step by step, great video. Now to submit my ticket to Bambu and starting printing with my A1 again, thank you.

[@UncleJessy]

Fantastic video and will be using it when I swap out mine

[@ModBotArmy]

Hey brotha! Thanks man 😊. Happy to have this thing back up and running.

[@LeosGarage]

I´m so glad I opted for the complete printer replacement :) Great video!

[@ModBotArmy]

Haha definitely the simpler route to go. I can't blame anyone for choosing that.

[@Goosefang]

I opted for the replacement. It is a fairly simple process but don’t forget the pics!! I did have one issue. The wiring for the camera plug came loose and caused the camera and light to go out. They did end up send me a new camera. I have already spent my $120 credit 😬

[@odescha]

Don't forget the photos !

[@ModBotArmy]

That’s right! I don’t think mine was eligible since it was a review unit but yes anyone else should take photos to get their gift cards!

[@markb4890]

​@@ModBotArmy I don't know if it was a fluke or what but I got my code before I ever even got my bed. The bed came two days later. So I 100% did not submit photos of the corrected installation. I'm still going to take the pictures and send them but I don't know if it's 100% necessary to get your voucher code.

[@jamesgates1074]

This seems like a pretty technical job. There are many points where mistakes could easily be made. It doesn't seem advisable for anyone without good technical experience. Certainly not kids. Opting for the factory replacement would be safest unless you are certain of what you are doing.

[@riba2233]

Ofc, that is why they provided a choice

[@3DandTeePrinting]

Only "issue" is feeding the new cables through the center hole/channel separating front and rear of printer base. Just use a zip tie. Feed the zip tie from the front of printer towards the rear of printer through the hole. Tape the new wires to the zip tie and pull the zip tie back towards the front of the printer till the wires are through the hole. Untape wires and continue installation. Hope that helps

[@OlavAlexanderMjelde]

Some notes: 1) Take pics if you opted for the gift card (since you have to send it as documentation) 2) Calibrate printer (without print plate), download a STL from bambu labs wiki page about it.

[@Effect2o]

I got so confused with the holes on the bed. I assumed all 8 holes lined up with the 8 holes in the brackets on the printer. Apparently its just the 4 bottom holes that line up.It looks odd. And yeah, the mesh and white rubber end of the cable had me confused too. Not as easy as it sounded, but not really bad either. Nice video!!

[@The_Traveling_Clown]

This what happened to my Trinus not too long after purchasing it. The cable under the bed burned out, and it had to be replaced. But the F-ing manufacturer charged me for the replacement. When it should have replaced it for free.

[@TS_Mind_Swept]

Nice to finally see these things coming back from the dead; now that I have a KE this is definitely at the top of my list for next printer (especially with how they handled the situation, but also with how they've been doing things in general)

[@riba2233]

Please don't get flawed k1, there are much better options out there

[@TS_Mind_Swept]

@@riba2233 I meant KE.... why did I put K1? 🤔 (also what's a K1?..)

[@riba2233]

@@TS_Mind_Swept K1 is a core xy enclosed printer from creality :)

[@marutiroma6295]

Modbot, nice video. Do you know how to solve the problem with level z? The printer assembly goes below bed level! I think I have to give it back. can you help me? Thank you.

[@flyboy4960]

I did the replacement install and it works perfectly. Took the required pics. What do I do now with the pictures? I attached them to the ticket and then selected close ticket. Was that what I need to do to get my credit?

[@ototheo2740]

Small tip with self tapping screws you want to screw back in: Insert them into the hole and turn them in the unscrew direction first until you feel the screw going down slightly. Then proceed with turning it the screw in direction. Doing it that way avoids cutting a new thread or damaging the on that was already there

[@haylspa]

I am being told, some venders are shipping out the A1 with the new bed NOT ATTACHED!!! do you know anything about this?? I just bought the A1 honestly will not be happy if the first thing I have to do is repair it!!

[@cnc-maker]

I don’t have an A1, but I see 1 flaw in the instructions. After removing the old bed, you should immediately install the new bed and leave the cable dangling until you are ready for it. Then you don’t need to switch back and forth, and should be able to do this with only 2 orientation moves. P.S. Using a black anodized or painted fastener for grounding is bad. From the video, it looks like they did that for all grounding points. They should be replaced with fasteners that are not black anodized or painted.

[@ModBotArmy]

Yeah, I did the flip flopping because Bambu had it laid out like that but I agree I dont see the point and it seems like one unnecessary move.

[@riba2233]

Ground connection is not the issue, two touching surfaces that matter are not coated.

[@cjs_hobbies]

One step I had to do was to tram the bed as it was off enough for the z offset was too close on one side.

[@ModBotArmy]

I also ran a bed tram on mine. The right even fully bottomed out is a little high but I have had no issues at all once the mesh kicks in for a print.

[@comeoutandpla]

Is it easier to do the mod….or disassemble, repack, take to UPS/Fedex

[@igorchyk09]

I believe that way “remove bottom panels, disconnect wires, unscrew old bed, attach new bad, connect it to motherboard and return panels” will be little convenient than the way Bambu lab suggested.

[@ModBotArmy]

Thinking back on the process I agree. One less time flipping the printer around. I dont see how having the bed loose made it any easier to remove the cable underneath. Maybe they think the bed wont be sliding on you? but that doesnt really make sense since they have you put it back on before doing the final electrical routing.

[@loquacious1956]

I swapped out my bed over a week ago and sent photos to Bambu but have heard nothing.

[@RobertGlazier]

I'm a Baby Bomber, 63. So it was simple for me. Works fine, got my $120 and happy.

[@baronvonrichthofen2021]

I recommend not positioning the printer as described in this video , or as indicated by Bambu labs. First of all, use a flat surface that is entirely level across the area you’re using, so not different heights as in this video. Also don’t position it on the left, as the print head will move and rest on the sensor and if you installed the scraper, it will touch that too. Instead, rest the back side on top of a box that is ca 10-15cm (4-6”) high, making sure the bed cable is free and raised above your working surface. Then lower the entire top bar down to your working surface . This provide a MUCH more stable position of your printer, and makes it much easier to work on. Also, the video linked from trimming is the bed installation video, not the trimming video.

[@michaelfilippi3276]

use a piece of string to pull the wires through. You can even cut the old heat bed wire to get the old heat bed out of the way quicker, unless you want to re-use it.

[@ModBotArmy]

This is a great idea 👍. Could have also grabbed a small piece of some TPU.

[@riba2233]

I used tweezers

[@michaelfilippi3276]

@@riba2233 I use an x1c. lol

[@riba2233]

​@@michaelfilippi3276 there are some things that A1 does better, I would wait for the next X2 gen to use those better features tbh

[@darekmario446]

Well... With my Electronics expirience I even Send Pics at Bambulab that all my connections were right. Still no answer Cause of $120 discount since 4 weeks. But I still belive Bambu is still bussy and it will still provide anwers next time. greetings

[@oO-dn9mv]

It's been two months now. Have they paid you?

[@darekmario446]

@@oO-dn9mv Yes, They Sent me a Code

[@MrMuzza008]

I had an A1. I chose to send it back for a refund. I got an X1C instead. Even though its a little more than double the price, I don't regret it for a minute.

[@ModBotArmy]

X1C is a beast! I love mine and given the choice between the two would absolutely go with that.

[@riba2233]

Why not p1s, just wasting money

[@MrMuzza008]

@@riba2233 Its mine to "waste". As I said I have no regrets. I love all the features of the X1C.

[@riba2233]

​@@MrMuzza008ok bro, no need to get upset lol, I just wanted to hear some concrete reasons to get x1 over P1

[@sotm6078]

There was NEVER anything wrong with my A1 heat Bed, however to protect Bambu I did the heat bed upgrade from them! Personally I don't see anything better about the new heat bed cord other than they just put a braided cable guard over it and provided a back stop bumper.

[@adekenyon]

I'm on the verge of purchasing an A1, am I right to assume the current stock won't have this issue? or am I best to wait?

[@kilianlindlbauer8277]

Current stock has updated bed cables

[@riba2233]

Ofc it won't...

[@prerecordedresponse9884]

This does not look "difficult" but it does look tedious as hell. I also wonder who is liable if it fails again and sets your house on fire. Ican see Bamboo arguing you screwed up the install instead of taking responsibility. Better to have them do it.

[@riba2233]

You are liable ofc, you had the option not to do it yourself

[@kilianlindlbauer8277]

Have you replaced it yourself? Then you. Has bambu replaced it? Then bambu. Has a electrician signed of the repair? Then the electrician, which was kinda the whole fiasco for EU citizens. Most electricians dont sign off work others have done, let alone with parts they dont know. Of course given you actually find one that has time. Most will have a look, but wont take over the responsibility in case something happens, hence no sign off. Bambu realised that and they took over the responsibility, yet im unsure how much this holds in the case of a fire and liability case, hence ny answer that the owner is responsible, just to know the worst case.

[@David_Best]

This is a lot more complex than I thought it would be. I'm fine with it, having built several printers, but for someone who bought this printer because it's just plug-n-play this could be a real chore. My mother could not do this successfully.

[@riba2233]

And why would she, bambu gave users a choice, this was only for hc diy folks

[@David_Best]

​@@riba2233Nowhere did Bambu describe this as for "hc diy folks". I'm not the only one who sees this as complex, but I see you also commented on their observations as well. Don't you have anything else to do other than harass commenters on KZbin?

[@riba2233]

@@David_Best I am not harassing anyone, just correcting these weird and just wrong takes. What kind of logic is this, they provided two options, one for people who don't want to tinker and one for people who do, and now you are complaining that the tinker option is too hard? What did you want for them to do lol, not provide the option?

[@David_Best]

@@riba2233 I think it would have been advisable for them to be explicit about what a DIY install would entail. This is way more complex than I would have anticipated which was my original point and the perspective of several others who watched this video. Give it a break - we differ in that perspective, so just leave it - you've made your point, so have I.

[@riba2233]

@@David_Best I get that everyone has a different perspective, but this is not that bad at all, it could hardly be any easier for what it is (we all knew that it was an AC bed and I even think that the guide was available at the time). So if you had any doubts if you are capable, you could and should have opted for the return.

[@obie224]

there is no way the average consumer would ever attempt this. and considering that that's exactly who the a1's are marketed to, this was a major screwup on bambu's part.

[@anthonylong5870]

Its just a way to get Bambu to release liability and get people to buy a new A1 once they ruin the one they have trying to fix it

[@riba2233]

No it wasn't because you had the option to return it, diy replacement wasn't mandatory!

[@anthonylong5870]

In the next few months the A1 is going to be obsolete. The new Kobra 3 Combo is a lot cheaper but has all the new technology. Its also faster and has a more efficient AMS with more features. I can see Bambu shaving off $150-$200 off the A1 combo just to keep it being bought

[@ModBotArmy]

I would love to see a true competitor come from Anycubic. Right now it’s just specs and marketing. Until I have either tested it or seen others test it I’ll take it with a grain of salt.

[@anthonylong5870]

@@ModBotArmy Its not like the A1 has a proven history.....How long after launch did it go before a massive recall? Yet people bought it

[@riba2233]

This is such a naive take, in reality it won't be even close don't worry. Also I highly doubt it will have auto flow calibration...

[@kilianlindlbauer8277]

We also thought of that when creality announced the k1. Reality is its cheaper, but also objectively worse (extruder still bad, k1 and k1max have horrible vfa, creality is a joke, nozzle leaks all over the place). Knowing anycubic, we can worse customer service than creality and several open source licence violations. Also, how would you make a MMU more efficient? With single nozzle and multiple filaments you will always have to purge. The amount you have to purge is determined by two factors, colour, how much filament is left in the hotend. The longer the hotend, the more filament is left. You can ram out a good chunk of the old filament so you need to purge less, but you are always inevitably wasting at least one length of your hotend worth of filament per swap since you have either forced it our before the swap or you are purging it out with the new filament. So either anycubic has shorter hotends, so less purge but also lower print speed, or they are cold pulling filament, which means a huge amount of time is necessary for the colour swap, even with ceramic heater hotends. Cold pulls for colour swap are only viable if you have a inductivly heated hotend (yes, these exist, team plasmics has launched them over a year ago) which have heating times of mere seconds

[@riba2233]

@@kilianlindlbauer8277 you have a very good point, but people like him are aggressively ignorant will unfortunately never learn :|

[@MaxFenix8k]

Why you just not cut the bed cable?, it's already broken

[@riba2233]

What would you gain with that? It wouldn't make the replacement any easier...

[@AndrewAHayes]

Bambu need to relase a printer build kit to compete with Voron and Prusa's build kits, this would enable tunkerers to obtain a Bambu printer for an even cheaper price.

[@ModBotArmy]

I dont know if thats in their plans but it would be fun to have a modders version to cater to that audience. I would certainly be interested.

[@kilianlindlbauer8277]

Would be cool, but i dont think this is their target audience. Also you cant compete with voron in a market way, voron isnt a company. They could compete with ratrig (actually a company), ldo, formbot, fysetc (typical voron kit vendors), etc.

[@PeterAgostiniJdcap26]

Tip 1 I used a magnetic 🧲 after taking screws that got stuck in bottom hole of panel . Tip 2. Use a zip tie to feed wires just tape them on and feed through .

[@pa_trickbrandt]

Second?

[@willrogers5913]

Oh dear. The grounding wire looks to be on a painted or anodised mating surface, and using coated screws.😮 This is no good at all. I would advise sanding or scraping the paint/anodised surface and using a non coated screw there to ensure your bed is grounded properly. The way they have done this is not a safe or correct way to ground. Should be bare metal to metal contact.

[@ModBotArmy]

The screw is definitely coated however the frame it is attaching to has no anodizing or coating on it. It’s bare metal. Could be my lighting/camera that made it look differently.

[@willrogers5913]

​@ModBotArmy Are you sure about this? It looks like shiny aluminium inside the threaded part and white coating on the outside flat section. All good if it is just the lighting making the surface look coated.

[@riba2233]

@@willrogers5913 nah bro they are two metal surfaces, I did the replacement and it's all good, no worries

[@willrogers5913]

@@riba2233 sweet, that is good to hear. Thanks for confirming. I've seen it a few times in the past so weary of it now.

[@djispro4272]

first?!

[@saltyscorpion2151]

It's too bad that Bambu had to be dragged kicking and screaming to admit they had a serious problem and issue a recall. Their lack of urgency to a potentially fatal problem was both revealing and disturbing. Buyers beware.

[@serdalo5035]

They researched it and fixed it. I would buy again… 🤷🏽‍♀️

[@woodcat7180]

So Apple like. Or Samsung or Tesla or ...

[@riba2233]

What? Not at all what happened... And they handled it better than any company would

[@HextorBane]

"buyers beware" this is bullsh*t. Bambulab needed to collect more than few evidences that this was a production issue NOT affection all the A1 (mine was not affected by the problem but I've been offered to get a replacement anyway. This is the firt proof that this is a serious company that take in account the Customers. Then when it was clear that a production issue happened, they assured everyone about a solution. It took time and reserach and then finally they came up with several proposal PLUS a significant discount for other purchases. This is the second proof that this IS a really serious Company. I've had a single issue with my P1S AMS and they provided DETAILED help (very detailed step by step help) to solve my problem. Buyer beware: yes beware that you will not find many 3d printing company that act in a professional way like Bambulab.

[@ejenda9909]

I saw... no kicking and screaming.