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Reverse Engineering Bambu Connect

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Re: Reverse Engineering Bambu Connect

#191

Post by theshrike79 »

jillyboel wrote: post #165
theshrike79 wrote: post #158

Earlier quoted context omitted.

Users can swap the battery? 1) open phone 2) remove battery 3) replace battery 4) close phone It just requires more tools than your fingers, like every single mainstream phone.

Not sure what kind of users you're dealing with, but your typical iphone user can absolutely not do that

A typical car driver can't change the oil in their car, nor can they do a headgasket swap either.

People don't go telling that Ford "refuses users to let their change their oil".

It's all perfectly doable, but you do need the tools and an ability to follow a step by step guide with pictures.

Re: Reverse Engineering Bambu Connect

#192

Post by esskay »

ddingus wrote: post #147
Mashimo wrote: post #129

Earlier quoted context omitted.

I think the AMS unit for the Bambu is somewhat sealed and has desiccant in it. "take a load" - I don't know what kind of load, do you mean the fact that PLA is creeping under sustained load? If that is YOUR usecase that is fine, but that does not mean that set and forget works just fine for others. Btw gun people use PLA plus just fine.

"Take a load" = perform mechanically and or structurally at levels of force, temperatures, etc. at levels higher than the properties of PLA allow for. Don't get me wrong here. PLA is a great polymer, However you can't really expect parts made with it to hold up when compared to other "engineering grade" polymers.

I don't think anyone expects PLA to be used for anything that requires structural stability. There's far better filaments for that application. Some of the carbon fiber infused PETG filaments for example are incredibly strong.

Not many people use 3d printing for applications that require extreme strength though, that's really not the goal many people are aiming for.

Re: Reverse Engineering Bambu Connect

#193

Post by theshrike79 »

Xelbair wrote: post #164
theshrike79 wrote: post #157

Earlier quoted context omitted.

It's not a matter of "charging more often". The phone just shut down when the battery was somewhere between 0-40% Source: had two 6S's in the family. In the cold it could just suddenly shut down mid-call from 60% battery.

you are still missing the point. USER should chose that. not apple. not all of them shut down, someone might get a battery replacement. What apple should've do is to introduce a toggle, give a warning in notification. and in case of crash, display it again.

Apple (IMO rationally) chose that people would prefer a working phone, one they can use to call emergecy services, for example, to a phone that just suddenly dies.

After the massive hissy fit the Internet threw (along with lawsuits), they added a switch. Now you can choose to have your phone suddenly die.

But the legend lives on that "Appple slowed down phones permanently!!" - even though the fix for that is a 40€ battery swap that takes 30 minutes in any mall phone repair shop.

Re: Reverse Engineering Bambu Connect

#194

Post by esskay »

bborud wrote: post #171
teruakohatu wrote: post #134

Earlier quoted context omitted.

Not really asleep at the wheel. More like they invented the wheel, produced the open source slicer (a fork of the original slicer but vastly improved), which was then used by Bambu who could manufacture a printer for less in China rather than in the EU. Prusa themselves run 600 printers. They are commercial grade. If I was using a printer for commercial design or prototyping I would go with Prusa. Not only because I…

I ThouYS may have a point. It seems to me that Prusa were tempted to go after the prosumer/pro market and invested a lot of time and engineering horsepower into higher spec machines (Prusa XL, HT90) and resin printers (SL1S). A lot of 3D printer companies have tried to go this route. It is not a strategy that tends to succeed. I don't know their sales numbers, but I would be willing to bet that the ROI on those print…

Thing is even with the core one finally releasing...its not a compelling product.

It costs more than the P1S - which lets fact it, thats what it should be compared to, not the X1C as the Core one doesn't have the stronger nozzle, nor any features that would make it a 'pro' level product.

They also still dont have an answer to the AMS, which is a big selling point for the Bambu's. The MMU3 may be better than the previous one but its just like putting lipstick on a pig - it's a mess, with tubes all over the place, spools dotted around, and then you've got to constantly babysit it and tune it.

Side by side the P1S with an AMS is still significantly cheaper and from a marketing perspective a much more visually pleasing offering.

Also worth mentioning that whilst the core one is about to come out, the MMU isnt actually even supported yet, and theres no timeline for when it will be.

Prusa are so far behind at this point and really shouldn't be. Chances are the core one is going to come out and just like the XL and MK4 will be extremely buggy for a good 6 months. How people still accept this is bonkers.

Re: Reverse Engineering Bambu Connect

#195

Post by esskay »

sho_hn wrote: post #11
adenta wrote: post #4

Earlier quoted context omitted.

The A1 mini was my first printer and it just works. Is there another brand that is idiot proof?

If you buy a Prusa in non-kit form, it's not any harder to unbox or operate, and more reliable, while generally achieving somewhat better results. Without phoning home and while maintaining the software Bambu forked theirs from. A recent review coming to a similar conclusion was Maker Muse' review of bedslingers. It's a channel I respect a lot, because he has over the years relentlessly disclosed emails of companies…

You pay more and lose reliable multicolour printing this way though - the MMU is NOT a solution.

Re: Reverse Engineering Bambu Connect

#196

Post by esskay »

djaykay wrote: post #68
hatsunearu wrote: post #47

Earlier quoted context omitted.

Conveniently left out that the Prusa definitely cannot do a lot of things that the popular Bambu models can do quite well, like filaments beyond PETG and PLA, multimaterial printing, etc.

Most Prusa models can print a wide range of filaments. I regularly print ABS and PC on mine. And there is a MMU add-on for Prusa.

The MMU isn't remotely comparable to the AMS though, it's finnicky, regularly breaks and needs a heck of a lot of tinkering for most people to get right. One slightly different filament and you have to start over.

Not to mention its just a messy product. Heck the new Core One doesn't even have support for it at launch which is pretty unforgivable.

Re: Reverse Engineering Bambu Connect

#197

Post by esskay »

ErneX wrote: post #181
zanderwohl wrote: post #53

Earlier quoted context omitted.

> it's not any harder to unbox or operate I agree with this > and more reliable I emphatically disagree with this. > while generally achieving somewhat better results I agree with this. I'd also like to add that my Prusa Mk3s+ is significantly slower than my P1S. Also, without the MMU it still cost more than my P1S with AMS. Choosing a Prusa is making a philosophical choice, because it's certainly not about convenien…

What are your thoughts on the upcoming Prusa Core One? I was thinking about getting a P1S but with this rug pull I’m not sure anymore.

I wouldn't buy any new Prusa printer until it's been in the wild at least a year, they tend to be very buggy at launch.

They also have no multimaterial support at launch, the MMU3 will not work with the Core One until they release an update, which they've not yet given a timeline for.

Re: Reverse Engineering Bambu Connect

#198

Post by modderation »

xyst wrote: post #163

I’m not familiar with the 3D printing space, but seems like this reverse engineering was inspired by the companies move to clamp down on security of these devices. [1] From what I understand, this new auth system would make third party integrations (ie, “OrcaSlicer”) obsolete and users would be limited to controlling the device via Bambu Connect. This update impacts users who control the device via HomeAssistant and…

That's a useful step, but the options are still Full Cloud Dependency or DIY with Zero Security.

Why haven't they implemented rudimentary access control with printer-side Basic Auth (or the equivalents auth for MQTT and FTP). Add optional SSL support to prevent tampering/MITM on a potentially hostile network, and the unauthenticated access concerns listed in [1] should disappear.

Any problems related to potentially damaging instructions should be best-effort mitigated by the firmware and otherwise indemnified by a "your own fault for using a third-party slicer" clause in the EULA.

Bambu Labs shouldn't need to be in the authentication/authorization path, unless we're actively using their cloud environment.

Re: Reverse Engineering Bambu Connect

#199

Post by kiba »

esskay wrote: post #187
harrall wrote: post #51

Earlier quoted context omitted.

Well Prusa was open and did compete. But for 3D printers that worked out of the box under $1000, Prusa had no real competition itself. The Mk3 came out in 2017 and I swear Prusa just sat on their laurels. I was a Mk3s+ owner (well, still am) and was pretty disappointed how little improved with the Mk4. Bambu’s competition was Prusa and they clearly strived to improve over what Prusa had accomplished.

The problem is even with Prusas recent efforts to catch up with the Core One, it's expensive, and they still dont have a viable answer to the AMS. The MMU is still a hot mess, requires tinkering, isn't stable and overall just doesnt come close to an out of the box experience. They still seem to be thinking the primary audience of 3d printers is people who tinker. It's not been that way for a long time. People just wa…

A Prusa MK4, completely factory built, is a reliable workhorse for me.
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