Who's At Fault?! - PrintFixFriday 145
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- Опубликовано: 8 июл 2024
- What do you do when it’s ACTUALLY wet filament? How about if you crush your nozzle? What happens if you think Bambu sent you refill spools with quality control issues? 🤔We’re here to answer all those questions and more on #PrintFix Friday!!
Have you ever used a refill spool before? What did you think? Let us know in the comments!
Go check out the creators in this video:
www.reddit.com/r/BambuLab/com...
/ im_making_this_post_to...
/ help_my_with_this_bubbles
www.reddit.com/r/FixMyPrint/c...
www.reddit.com/r/FixMyPrint/c...
Links:
How to replace a Prusa nozzle: help.prusa3d.com/guide/how-to...
Cards:
Bambu Log File Video: • What is Inside a Bambu...
PrintFixFriday 139 (w/ Joel Telling's Issue): • Clean Beds = Happy 3D ...
Grant Fights A Giant Robot: • I FOUGHT a Giant Robot...
Gloop Interview: • Printing Chocolate and...
Orca Slicer Review: • Better Slicer Than Bam...
0:00 Intro
0:51 Bambu Filament QC Issue: An improperly sized refill roll of Bambu filament might've caused some issues.
7:51 Prusa Nozzle Screw Warning: How to avoid crushing your Nextruder nozzle.
10:39 Tiny Bubbles On Print: It might ACTUALLY be wet filament.
12:35 Bulging Corners: A heavily modded Ender has some issues.
16:06 Supports Damage Print: A first time printer is having issues with supports not removing cleanly.
20:51 Outro
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"Computer controlled hot glue guns" Well, you just set my expectations in just one sentence. I recently ordered an Bambu A1 Mini and I've heard great reviews for beginners like myself. Beginner as in, never even touched a 3D printer. I have been watching videos, yours included, and thank you for setting my expectations. Once you said it, I immediately thought, "Well, that's about as accurate of a statement one could make about 3D printing in our current time."
You could even add to it. Hot glue gun duct taped to an etch a sketch. Although this doesn't work with anyone under 30 or so..
@@3DMusketeers No worries there, I'm definitely over 30 LOL. Still, even with what you said, I couldn't think of a more accurate statement.
I've always assumed you should always re-spool/wind with the refill spools. A little bit of play in the wrong area can make issues worse, so do it right from the start.
that seems to reduce the cost benefit then, no?
@@3DMusketeers I personally do not see it that way, but I can see how others would, especially if they do this professionally. Time/Money.
But for a hobby level, I feel print failure offsets the benefit of a refill spool. An overnight knot failure can waste, proportionality, a lot.
*Edit I mean wasted time and possibly having to reprint. Although I have had a spool knot up, pull free, and cause errors because it kept pulling tight and jumping before breaking free and spinning into a giant knot. Ah, the printing hobby.
for the guy at 16:07, if its your own design and the part allows it, i would recommend to make the hook thicker so it matches the round face at the bottom, that way you dont have to deal with supports and you have a a nice surface finish from the bed, another option would be to offset the circular part to have a flat side
supports are going to leave artifacts on the surface that they touch, its just part of how they work
great option! love that advice!
If the hook still needs to be narrow but the circular ring side could be made thicker, they could also draft in the top and bottom surfaces by a few degrees to do this. Also, using chamfers (shaved off edges) instead of fillets (roundoffs) will produce a nicer surface on both the bottom and top surfaces. It'll result in something that looks much more angular, but with a little creativity, it's possible to still make a nice looking object.
If they needed to match an existing injection molded object, then they might not be able to do any of this and they'll just be doomed to having to sand off the rough edges (or split and glue the object), but a fairly common beginner mistake is to try to remake injection molded designs for their printer instead of designing for the printer itself. FDM printers can do a lot of things that injection molding simply cannot and vice versa. That doesn't mean you can't produce a solution for the problem with your printer, but you might have to think a little outside of the (injection molded) box.
GRANT!! Dude, I just opened a brand new spool of Bambu PLA refill and it is unwinding out the sides from the middle of the spool. This is the first time it's happened and this was not my error! My spool is locked together with that tab thing in it. 😡
IT KNEW YOU WERE WATCHING!!!!
I had the exact problem with the badly spooled filament, and immediately got a replacement free of charge without any hassle.
Well, that is not how it came, it happened after the user put a refill on a larger spool than it was meant to be on it seems.
Over tension on the filament while winding could cause this, especially when it offurs after the spool is half wound no personal experience with filament, but have had it happen on winches, spools of rope, wire.....
I just had a gray spool that was all screwed up from bambu. Probably my fault... I dunno, I just got to the knot and respun it.
2:14 The first topic is a bit bizar and to publicly cry havoc is a bit bizar. It screams user error with refill spools. Just log a support ticket to Bambu and most likely you’ll find them to be very helpful.
My first order of Bambu PLA I got a _spool_ of bambu pla basic white. That roll burst open, apparently it wasn’t locked properly and I didn’t check. I just logged a ticket and the Bambu team was very helpful.
I recently bought like 20 rolls from bambu's anniversary sale and I have to say they came in pretty crap condition. Most of them you can obviously see filament running over each other, crossed, and so that's going to tangle really bad. I've got a whole bunch of pictures I'd love to share them
oof, sorry about that!!
I have chewed up almost 90kg of Bambu filament this year, about two months ago refills went to shit. They’re terrible and they have a ton of problems.
Interesting. Maybe they changed vendors?
I had the same happened. But that was only due to me placing the refill spool wrongly. The sides were not properly locked on all lock points and that caused spool to make a mess.
ah, yeah, that'll do it
I’ve gone through a few dozen bambu refill spools with zero issues. I’m betting some folks are removing the 4 strips holding the filament together prior to installing it on the spools.
Definitely not a Bambu issue.
seen both sides there, some saying its user error, others claiming they followed directions and had issues. I wonder if there is a variance in the length of that cardboard a bit? It seems, like everything with Bambu, its a hit or miss issue and potentially due to QC issues, but not rampant.
We just had this happen yesterday with a Bambu spool lol. Apparently it did happen once a while back. Bambu has a shim to prevent it.
oh do they?? cool!
I’ve purchased several Bambu filaments with spool and have had issues with the filament going down into the sides. I’ve actually had much better luck with the refills, but they sometimes do it too. There is definitely room for improvement here.
so weird. I wonder who is making their filament as I assume they are not doing it in house..
never happend on the bambu spools/refills. BUt did happen to some Polymaker roles. But easy to fix (1 string underneat the one other).
But the bambu spools need to have correct line up to realy fit.
The better way to handle that hook is to just make it thicker so you don't need support.
Always design for the process. The round shape is also not ideal for the bottom edge. May not look as pretty but will be much more functional.
Slant 3d has good advice for designing for printing. Other than printing a corner.
We have done some videos on it as well, and intend to show some more detailed ones soon. But if they are new to printing chances are they may also be new to design, at least the DFAM process.
My AMS clogs in slot #4 very consistently. I changed the plastic spool and it went away. The problem was that there was room on the side of the spool and the filament was falling into the crack and getting stuck when rolling and unrolling.
mine is having issues on 4 now as well, I THINK the feeder is worn :/
i used to respool all my cardboard filament rolls onto the bambu bobbins but i later found the holder that will go over the cardboard spool no respooling required. I have only been using the new stuff for a short time so time will tell if it is a permanent solution.
like a spool ring?
@@3DMusketeers it is like a plastic spool that screws together in the middle
Regarding the Re-spool tangles, my day job involves taking small coils of stainless steel tubing (very similar to filament in diameter and springiness) and loading them onto a spool cart to be straightened.
It is incredibly easy to cause a tangle where there was none.
If you don't have the ends the right way around (pulling from the inside instead of the outside, which can be unclear which is which) or even just accidentally tucking an end through a coil loop, you're gonna have a bad time.
What is worse, is if you don't isolate the tangle (which is essentially an overhand knot) you will move the tangle/knot down deeper into the coil as you try to chase it. Speaking from experience 😅
ooof that does sound like it could suckkkkk
I have this happen on two of my non-refill rolls from Bambu. It wasn't hard to unwind it a bit and wind back the portion that was tangled. I was annoying but not a big enough deal that I complained about it. I guess if this keeps happening I will look at other brands and maybe complain to Bambu. I have a few refils coming from bambu we will see how those go.
Sunlu S4 love it does 4 rolls at a time and can print form it as well.
7:24 I’ve never had this happened. I think they cut the zip ties before making sure the spool was entirely locked
sounds plausible to me!
I've had the opposite issue with the bambu refills. It's actually hard to get the reusable spool to clamp down on it because it's so tight. Also I'm wondering if this guy failed to watch the instruction video? You're supposed to load the refill into the spool with the plastic straps still attached, then cut them one by one and pull them out. They're just thin enough to slip around the edges. If you cut them first you'll have issues.
Seems they are not the only ones to have issues like this. Plenty of comments are saying similar things. So weird.. QC is a big deal to me and it seems to be missing here :/
Great job very informative
I use only refills... no such problems, if you look/think what are you doing... winning few bucks per spool is worth of it imo... "Who don't pick up kopeck will never get whole ruble" :D
and if you mess it up you can always respool
ohhhh there was one other thing. Last week the cleaning people at work......broke one of my models (Enterprise 1979). Thanks guys! It's partially my fault for the poor stand design. I designed the model and the stand. It's my enterprise model. So I'm going to need to redesign the stand at some point when I reprint it.
I totally understand where that user is coming from with the refills. I've lost two rolls of spools due to the filament digging into the sides causing that AMS error. Following the directions that come in the box of refills and still had issues. And trying to respool those refills...forget about it.
Is this like a known thing? I know plenty of companies that do refills without this issue.
hands down sovol s4 filadryer is the best. I use it with my mmu3 for a makeshift ams. lol
I have 2 complaints. 1 I can't see the spool from the sides, so you have to remove it to see the true status (looking down as I've discovered isn't good enough). The other is I with it was bluetooth or wifi. It's annoying to set the timer on the screen with just up and down buttons.
Only had an issue once (just recently) where a refill spool was wound too tight and left a gap of 2 millimetres on either side. Filament kept getting stuck on either side. Put in a support ticket and within the week I had a replacement spool. I will be re-spooling the old spool.
thats convenient at least
The hook could be better designed for 3D printing assuming they don’t need the exact shape. If they just made it thicker and a single thickness throughout then they wouldn’t need support at all.
absolutely agree! You could even design in the supports!
I own the Sunlu S2 and there are tons of things to print that leave a gap on the lid to help moisture come out. On the other hand, Sunlu writes that you never should open the lid while drying. The little hole on the top should be enough of a gap.
Who's right? The manufacturer who should know how their product should work best, or the community? Does it really help letting the moisture out, or does it also let moist air in?
Can a gap help let moisture out faster, but a closed lid removes moisture even more but needs more time to do so?
So far, when I had bubbles with TPU, having it in the dryer for 6 hours and the lid closed at all times, it printed fine afterwards. No gap needed.
Btw. I like white filament, but I begin to hate transparent PETG ;)
I drilled a small hole in the bottom of the housing of my S2 and run it like that fully closed until the spool is dry. A bit of ventilation is required but I think it's more important to keep the heat in than let the moist air out.
I think the little holes on top should technically be enough to expel the moist air but since there isn't any intake they can get overwhelmed easily. If you put in a very wet roll and after a bit there is a lot of moisture inside the heating chamber you can crack it open for an hour or so to help cycle the air but in order to fully dry a spool it should be closed while drying for a while. Could also be helpful to turn the spool a bit while you crack it open to let the bottom heater heat different parts of the spool directly instead of purely relying on convection.
There is also a heater in the lid so there might be a reason of culpability for that warning from Sunlu to prevent people from burning themselves or closing it incorrectly.
I drilled some holes in the top of mine to let the moist air out, seems to work okay, but I do often need to 'burp' the container.
I do have to say, a majority of my spools from Bambu are wonky. So far no tangles for me. I've only had one spool tangle in 2 years of printing. PolyLite ASA.
the tangles are user error alas, but this is a tunneling issue
Woohoo! Dryer episode!
yeah!!
yeah I wish the mk4/xl used revo. Revo is better IMO. I still haven't fixed my obsidean. I think I'm going to have to put it at a lower temperature in the oven and shove PETG through it. The wham bam cleaning kit is only 1.7mm not 1.75. so it helped, but not enough. That extra 0.05 matters
wow this has been going on for almost a month. What do you have stuck in there? I think I am the one who told you about the wam bam kit.
Honest question. Wouldn't the Revo have a similar problem if you got a jam. Is the shorter heatbreak enough to make it easier or is there something else?
@@eslmatt811 I've had something similar with revo, but I got it fixed no problem. I've only worked on it a couple times. I've just been lazy about it.
@@eslmatt811 so yeah I just finally got off my ass and tried shoving filament up it. No luck. 350 degrees (f), 425, 480, 500. I think it's cooling off too fast. I thought I managed to clear half the heat break, but now I'm not even sure about that. I suppose I can try it in the printer again. I got nothing to lose. But even if it's half the heat break, I'm not sure it's enough. And I'm not even sure of that. It's just PETG in there. I forgot to tighten the thumb screws. So it got nasty heat creep.
@@eslmatt811 I just ordered a 1.75mm drill bit. We'll see if that works. I have nothing to lose now.
be careful!
The reamer is tapered, but is it flared?
do we have to call the EMT guy from the internet to tell you no again???
Never had a problem with Bambu's refills, and I've used several of them. Sometimes it looks like the spool is locked together, but it might not be positioned correctly, leading to it being loose (I caught this once before the same issue happened to me). My guess is they didn't have the spool properly locked when they pulled off the straps.
so weird how some are totally fine, but others have had so many issues.. hmm
Support guy needs to consider a support material interface. I’ve been loving pva but it does have its own frustrations
Yeah it's a pain for the purging and such :/
The refills are the biggest problem. I've been buying sales from amazon that include Creality and SUNLU silk and it has been flawless. Beautiful prints.
yeah some of those sales are so good!
If you don't put the tab on the spool in the notch on the cardboard, this type of situation will occur!
Oh, there's a key? I was unaware!
I just got my Bambu X1c last week - I know, I know, please dont hate me, Grant! I ordered refils with it, 1kg in size, and I printed the spool file on the printer to use for these refills. And I have had no problems with feeding, even when I mistakenly took off the tape holding it together before putting it on the spool! Am I missing something about his particular case? Is it just with the actual spools that you buy from bambu?
I had a bad experience with Bambu, that does not make me hate someone that bought their machines, I just hope they understand the data implications, the investor implications, etc. Remember Bambu and DJI have the same major investor, who is part of the reason DJI may be banned completely from the USA it seems..
It looks like with this case the spook cardboard was too wide so the refill spread out. At least, that is my understanding
@3DMusketeers Yes, thank you for all your videos on their data mining. I am being as careful as I can with using LAN mode and its on an isolated network and has its own dedicated mini PC computer. Though I am slightly irritated because a couple of the spools that sent with the printer came bent and when I asked for replacements they said to try them first. So I have to risk clogging my machine to getreplacements, fun! On top of some under-extruding issues.
@@3DMusketeersI guess I was wondering if the printed spool is a slightly different size than the "actual" ones. Causing the unspooling.
I have no clue honestly. I often find the master spool or refill spool options to not be worth the hassle alas :/
I use a custom printed spool i can tighten down. i ditch the cardboard core with my custom spool the two half are threaded with a series of groves in the threads snug it up take a piece of the filament and slip it in the the thread groves this locks the spool.
i have a pair of sunlu S4 feeding a custom 8x4 ERCF on my custom voron trident 500x500x1000 printable but 500x650x1100 if you use the configuration tool. i need the extra space for easy tool changer dev work
thats a nice design!!
So the umbrella for my model is not going well. (I have to think this would suffer the same problems on resin too). I got everythying printed, but gluing the rod to the top doesn't work even with 3d gloop. My new thought is to put a hole in the model. Then stick the rod through it with glue. Hopefully that will work better. I'm also tempted to replace the umbrella with a candle. (she's holding a short rod already so something has to go there). It's so frustrating because she's almost done! I'm sooooo ready to move on to making the gunstar (gambody model) from the last star fighter. But not until Senko is complete.
oh no :( It is a difficult model, could you drill a small hole for the rod and bond them that way.
@@3DMusketeers yeah that's what I did. That worked great. The other part I was worried about is the rod in her hand has to join to the rod on the umbrella. I knew this wasn't going to work as is. So I made the rod so that it overlaps the rod in her hand just slightly. I haven't glued her into the bridge yet so I don't know how well this will work (but honestly at this point it's more of a question of can the rod hold the umbrella up).I would have finished this all this week, but stuff came up and I put printing on hold.
Newest Sunlu and PolyDryer
We have them both!!
Sunlu S4 dryer👍
Already in hand!
LOL the second one in hit the like button!!!
AS YOU SHOULD ;)
@#%$# Gloop robot. Should've put that stuff on the soles of my shoes before attempting
dang.. thats a good idea!!
lol that dude would be better off with an ender 3 ke. If it's not klipper based, it's klipper like. It's fast. It's got amazing quality. There is no reason for creality to sell lesser models.
I agree that creality should stop selling SO MANY ENDER VARIANTS!!
@@3DMusketeers I keep seeing ads for neo's and I'm like.....ugggg that printer is terrible. I managed to talk a few people into paying the extra for the KE. And a number of people that got the neo regretted not getting the ke. lol
*Moist*
One of your best/funny episodes so far, keep on killing it.
glad you enjoyed it!
M O I S T
bambu sucks so much I wish people would stop praising them, maybe I wouldn't have wasted money on one
@09:10 Let's be honest... This *_IS_* a terrible design and it should be changed for a solution that makes over torquing impossible which *_IS_* possible.
Ppl usually don't have Torque Wrenches at home - The *_ONLY_* reason _I_ have a Torque Wrench is because of my CF Bike.
fair, fair.
Staw away from bambu labs. Just stay away.