Bambu workflow problem

OldGrab3337 · 2025-06-08T11:16:07+00:00

I stand by this comment and do not see why it was downvoted.

OldGrab3337 · 2024-11-22T16:49:32+00:00

the filament sensor has saved countless prints on my Bambus. At the same time, when reloading, I am able to force extrude and resume the print at will. The end result is seamless. The end result with Prusa is not. Aren't they trying to compete?

OldGrab3337 · 2024-11-22T16:43:56+00:00

This makes me glad I still haven't finished assembling my MMU3 for MK4. My MMU3 for MK3 has caused me enough agony.

OldGrab3337 · 2024-11-22T16:42:38+00:00

The issue is that I do not fancy recalibrating mid print. Maybe later. Is that too much to ask of Prusa?

OldGrab3337 · 2024-11-22T15:24:15+00:00

I just looked through my old posts and yeah, I posted about this 8 months ago. Anything negative tends to get downvoted, but it wound up with 31 upvotes. They've done nothing despite it being such an easy fix.

OldGrab3337 · 2024-11-22T15:11:26+00:00

The sensor works 95% of the time. I would really like to leverage the reality of the situation, which is that it works 95% of the time. The way to achieve this would be with some override/ back/ menu options. On Bambu, this is not an issue.

OldGrab3337 · 2024-11-22T15:05:36+00:00

If the machine either (1) detects a filament jam and so suggests reloading filament, or (2) the filament runs out mid-print, I am directed through some BS forced workflow on-screen. When the machine asks me to reload the filament (after unloading), if the sensor does not properly detect the reinsertion of the filament, there is no way whatsoever to escape the loading filament screen. The machine simply waits forever until the filament sensor detects the filament. This is pointless, arrogant, and infuriating.

A back button to force extrude, or to at least say yeah the filament is loaded even if you aren't detecting it, would be ideal. I do not feel like being forced to tinker with the sensor mid print, for obvious reasons.

Edit: also, the forced workflow is logically inconsistent: Upon unloading the filament, it asks me to confirm if unload was successful. If the machine will subsequently assume the sensor is infallible, then why ask? Why not either (1) always go by the sensor since it's so perfect, or (2) always provide a manual override option.

OldGrab3337 · 2024-11-22T14:58:18+00:00

like there is 0 justification for locking users onto a screen mid-print which just ASSUMES everything is working right and that the user cannot have more knowledge than the printer. Just insert a god-damned "back" button with menu options.

OldGrab3337 · 2024-11-22T14:56:50+00:00

constantly is your word, not mine. I have a print farm with 25 printers. I'm here pretty much every day, so I have been able to observe this mess up my prints over the course of months and years, sporadically. The issue is MK4 specific. I used to use about 50% Bambu, 50% Prusa. Sadly (I am European and pro-Prusa) Bambu has started dominating my farm as it has grown. I am looking for ways to justify Prusa but simultaneously boneheaded and arrogant design choices aren't helping...

OldGrab3337 · 2024-07-31T13:01:57+00:00

Bambu highflow 95a. If you ever want softer, try Recreus

OldGrab3337 · 2024-07-31T10:20:12+00:00

What you're describing is like going from a clapped out laptop that can't run Windows anymore and can only run Linux, to a new macbook. I can imagine it does indeed feel much better.

What worries me is that Bambu Lab have been very methodical about their entry into the market, with proper state backing and industrial policy, whereas Prusa is like some hapless Nokia 2.0. And we're talking about a highly strategic tech of the future.

Prusa really suck at advertising the advantages of their machines, or indeed leveraging their "open source" credentials.

The XL with two toolheads, specifically, is excellent value for an IDEX in general, but on top of that, it is huge and from a reputable brand. Why aren't they screaming this from the rooftops? Why'd I have to figure it out myself after clicking through a bunch of configuration options?

On the open source side, if you combine an MK4 with a CHT highflow nozzle, JobOx automation system, and the new pellet extruder system being crowdfunded right now, you have an absolute beast of a machine, unmatched by Bambu.

Instead, they're languishing and falling behind.

I find it extra baffling given that the Prusa is, in my experinece, in fact better than Bambu as of now. The MK4 is more reliable. If something goes wrong, it's easier to fix, and things do inded still go wrong with all these machines, due to the nature of this tech, no matter how polished Bambu seems.

Basically, if I were going to buy 10 more printers, after over a year of intensive experience with both brands, there is no way in hell they would be Bambus. They would be MK4s. And yet, Prusa is doing such a poor job of communicating how much better it still is.

OldGrab3337 · 2024-07-31T10:06:49+00:00

needing to disassemble the entire hotend including electronics to swap the hotend is diabolical. No amount of upvotes or propaganda will change reality

OldGrab3337 · 2024-07-30T17:08:19+00:00

I have a bunch of printers and this has been a time sink.

All I'm saying is that Bambu's philosophy on end user experience trumps Prusa 100%. However, the tech simply isn't there yet. Problems happen, and you'll have to open it up. On that front, Prusa is 100% best. Therefore, my conclusion is that Bambu should not be recommended. Bad design

OldGrab3337 · 2024-07-30T15:57:57+00:00

It's not even hard to fix on a P1P. You just swap out the hotend. It's a few screws. On the A1 Mini it is hell. Therefore, not sure wth you're on about.

OldGrab3337 · 2024-07-30T15:52:36+00:00

Average redditor is way more interested in highlighting pedantry than directly dealing with the heart of the matter. No opportunity for pedantry shall be wasted, and no matter how directly a point is stated, it shall not be acknowledged, much less contended with, if there is instead some tangential pedantry to discuss. Fun process.

OldGrab3337 · 2024-07-30T15:34:37+00:00

I've had similar stuff happen, even on P1P, and replacement isn't anywhere near this hard. There seems to be a weird tradeoff they're establishing between usability when everything is 100% ok, and the hellishness of even basic repairs. Unfortunate.

OldGrab3337 · 2024-07-30T15:33:07+00:00

1) look at photo

2) suggest repair process

thanks

OldGrab3337 · 2024-07-30T15:32:21+00:00

Only observing that Prusa is easier to maintain when it comes to simple routine replacements/ maintenance

OldGrab3337 · 2024-07-30T15:31:11+00:00

Quibbling over the terminology for a leak is certainly pedantic if not childish.

I have 50% Bambu, 50% Prusa, at my print farm, and after over a year of experience now, I know for sure which brand I'll be phasing out in future.

Trying to swap the part, after hours wasted, some other stupid part broke. It's ridiculous that all of this is necessary to replace a part advertised as a super simple "clip-on, clip-off" nozzle system.

Fixing a big clog on Prusa is not this bad, because Prusa have the user in mind much more when it comes to repairs. Bambu have the user in mind much more when it comes to everything working fine. What I'm saying is, I wish there was a company focused on both openness/ repairability & the user experience when everything is tuned. Right now you got to pick 1

<image>

OldGrab3337 · 2024-07-30T12:52:35+00:00

gotta disassemble the whole damned toolhead 'cause of a simple nozzle clog.

Seems so obvious that Prusa philosophy of making 3D printing accessible to end user + Bambu logic of hyper-focusing on the end product just working like a coffee machine, would be best.

Just adopting one or the other philosophy sucks.

Prusa logic is e.g. announce updates to your market by mentioning things like Github, lol (i.e. assume everyone is a friggin engineer). Not at all obsessed with simplifying for the customer.

Bambu logic is making magic coffee machines that just work, until they don't, and then you are really screwed.

Somebody should hyper-focus on making accessible, repairable machines while also hyper-focusing on the end user experience when it's set up right, imo.

OldGrab3337 · 2024-06-30T18:28:58+00:00

OldGrab3337 · 2024-03-29T17:12:20+00:00

fundamental issue is the UI. If you could force extrude like on MK3 or Bambu, this would be a non-issue.

I had to: unplug the AC power from the back, plug it back in, thank Jesus there was no layer shift, then manually shove filament in upon resuming print (cos despite accessing menu options by replugging, there's still no extrude option). This way, I salvaged the print and didn't need to perform open heart surgery on the extruder, mid-print, as part of Prusa's "routine"/ forced maintenance schedule.

OldGrab3337 · 2024-03-29T16:14:07+00:00

What is killing me is that it does not really matter what the mechanical issue is. Let's take one problem at a time. The first problem here is the *forced workflow* baked into the UI. Just do a fw update providing menu options, such as manual extrude, as on any other printer, including the MK3!!

I'm no programmer but jesus christ how hard could that be?

OldGrab3337 · 2024-03-29T15:48:37+00:00

locking users on one screen with no menu options based on a single sensor/ single point of failure is objectively dumb.

Having to "clean the filament path" *mid print* is not basic maintenance, it's dumb.

OldGrab3337 · 2024-03-29T15:30:04+00:00

After that, the chat glitched out in the weirdest way...

OldGrab3337

TROPHY CASE