Bambu Lab A1 unbiased preview (a must watch before buy)
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- Опубликовано: 17 окт 2024
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Here we have the Bigger Brother of the A1 series... is it only bigger or also better... well our findings might come as a little surprise.
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I've watched lots of reviews of the A1. This is the first real review, that's not just reading off the printer's spec in exchange for a free printer. Thanks!
thanks!
Did you grease with 'S2 V220 1' like Shell Gadus ? Your bearings sound dry and not lubricated. Any machine I buy I strip down the linear rails off the machine, soak the rail and carriage in IPA for 20 mins and then once dried off, apply the proper grease as mentioned to the back of the carriage (fia holes in the rail to access and via the lube holes each end of the carriage, you need tiny amounts but without, they sound like this.
I have the same issue with the x-axis. (A1-mini)
Bambu, “we use an MGN block on the x-axis with higher tension for accuracy, the side effect is a louder system”
The Z axis is a screw and the Y axis is rollers on a cylindrical rail. Those have each been quiet for me so far.
I also have had an issue where the plastic housing on the linear bearing rubs on the rail and squeaks miserable. Station 1 on my AMS lite is also having an issue with squeaking as well.
And what I get in return is “that’s normal” for most of it.
Lubricating the face of the rail and working the head assembly has reduced the rail squeak. The crunch from the bearings has slightly improved with wear in and cycling lubricating oil and cleaning the rail frequently.
They do not sell replacement oil, so I went with superlube with ptfe from Amazon. They said that would be fine. I would prefer krytox but I’m not sure which temp range and viscosity is best. (Also $$$)
I have had responses from them daily, I’ll give them that.
But the machine was DEAD quiet upon arrival… so it’s a big change.
The biggest challenge I’ve faced is trying to use the full 180mmx180mm plate. The plate rises in the corners when material cools during printing and collides with the head. Adding local heat helps a lot, in being a bed-slinger it exaggerates the issue by cooling the plate with rapid movement. Printing at a lower infill has helped but not solved the issue.
It’s a good machine, there’s just been several arguably unnecessary challenges. A new x-axis rail is on order so I can mess with this one.
Thank you for you detailed review, the youtube influencers brain washers signed NDA agreement so all they say a lies to sell the printer. This is cheap crap. See cost of proper MGN rail like HiWIN be prepeared to see true price of quality components. You can buy them and replace.
Did they send you a replacement?
That wasn’t a review it was you saying it bigger and needs new bearings for the linear rail 😂
cannabis will melt your brain
I notice you just show footage of that loud noise during the motor noise calibration. Does it make that noise during normal printing? Mine was loud during calibration but now its very quiet. The part cooling fan is a bit loud but motor & bearings etc are very quiet
not exactly the same noise, however some similar noise 😢
Does this mean recent-production A1 Minis will also have poor quality bearings?
that might be the case yes, it's the way it's been produced perhaps?
I could guess thst Bambu will.include the rail in the "consumable" parts list, so no under warranty. After a while, when will wear out in the section most used for printing, You'll have to pay for an extra rail....
I'm waiting for a response from them, if they don't reply positive . I'm going to order a high quality linear bearingsblock and replace it.
I guess I am one of the few that don’t like this new appliance style printers. I prefer the PRUSA, LULZBOT and Ender V2 style of machines that are easier to tear apart, modify and fix. If my Prusa sounded like that, I would have it apart and repaired in 15 min. I am also not a big fan of AC mains bed heaters. It does heat much faster but I think it is just a cost saving measure since they can reduce the size of the power supply for the printer at the risk of anyone tinkering or repairing the bed. Just my personal opinion and I look forward to your video on the rail bearings.
you are right, this isn't your ordinary bed slinger printer... To do any kind of 'repair' on it you need to be cautious to not damage anything since it's all fragile. I still don't understand why bambulab keep on insisting that the sounds produced by the X axis are 'normal' though.
Mains fed bed heater?? That'll be fun for 240V uses when the wires wear...
if its using ac mains power for the bed, then the power supply size has nothing to do with the bed heater... an mains power doesnt come from a 12/24v power supply... it comes directly from the ac mains power and uses a solid state relay to turn it on and off... if you didnt know that, then you probably shouldnt be tearing apart your printer in the first place
@@frankhovis this is why electric appliances are region specific... 90% of the world is on a 240v grid... here in the us we have 120v 60hz grid.... plugging any north american appliance in on a 240 grid could be a shocking experience
i did not know the bed was AC mains bed !!! im an embedded systems engineer , this is a huge no no ,the first rule of designing stuff is the AC mains should NEVER be anywhere close to the user !! let alone putting it in a slinging bed that can wear out the cables ,and do you really trust the users not to get any liquid on the bed while the machine is off ? i do put stuff on my 3D printer bed when its not in use ,as it already takes up space on my desk. depending on how they implemented the AC bed it could be potentially dangerous.
Yeah my A1 x-axis rail doesn't sound like that at all -- but the printer is still overall much louder than the Mini. Bambu definitely rushed production of the A1 to meet the Christmas rush and the corners got cut on quality control. Even so, the A1 isn't as nice a printer as the A1 Mini is, but the larger volume is often necessary. The Bambu Top Mount might not be a copy of your Mini one, but I think its inspired by it. They added some nice innovations like being able to rotate the AMS to access the spools easier, but they rushed that too, and had to add braces to prevent it from tipping. Then the fact they ran out of screw kits for it -- lol! Honestly, without the AMS, the A1 is really nothing special -- I'd rather get a V3 KE with Klipper (and root). But that AMS is pretty awesome...
you do have awesome insight on the whole case. I wish everyone was as smart as you are :-) thanks for the feedback!
@@aim6maccan we fix the noise?
@@5doolar stay tuned , we will!
@@aim6mac but there is any problem use it like that.? I got mine today
@@5doolar no it prints fine, (if you can stand the noise)
What lube should use ? I need to buy
there is liquid lube in the box that the a1 came in, one is grease and one is liquid, if you are using it for the linear rails make sure u use the liquid one
@@aim6mac my dog eat both. I want to buy . Any lube works? Can i use sewer machine lube?
@@5doolar ouch, yes i think a sewer machine lube is almost same, the liquid form one at least is.
Did you try lubricating the X axis rail?
yes , it's the first thing i did.
@@aim6mac Ok then it's not your fault Bambu Bob really messed up
I got the same bull from bbl support:
“What you are hearing are the bearings inside the MGN block of the linear rail. The bearings have a certain preload which makes them more precise, but slightly louder compared to other bearings. Please note though that this is normal it expected.”
When I questioned this they replied:
“While the linear rail might be a bit more noisy, is should still be a silent printer during operation, when you are printing normally.”
Thing is though, the more ours I put into it the less mechanical noise it makes. Guess it is grinding “something” down….
Can fix the noise?
when someone grinds their teeth in their sleep, eventually they are left with no teeth at all :)
i got today the same response for there, im using some other lube that i buy and its much better the noise, i know that if we take out the "car" and clean all it the bearings and put new oil\grease will get much better, but i have afraid to dismantle all the extruder etc
On my a1 the noise diapered after lubrication and some prints. So nothing to worry for now.
lucky for you, i wish that was the case for me aswell
where did you apply your lubrication?
Very informative video. thx
how to fix that grinding noise? mine make the same
stay tuned , i will show once i get it all together
Mine doesn't sound like that either and in normal print mode it is a little louder than the Mini but not as extreme either
consider yourself one of the lucky one's :)
Just return it as faulty.. I would.
bambu won't accept it as FAULTY. Although i can return it because of the 14 day cooling off period.
That rail doesn't sound right to me.
Bambu Lab says its normal :) so it must be normal ehh?? LOL
"Acceptable range..." LOL. So basically they told you to piss off.
kind of yes haha
I am thinking about getting one for more then a month. After seeing this video I resigned
I'm not saying get one or don't get one, BUT the A1 is now fixed , Bambu has send me a replacement X axis.
mine does not sound like that at all.
lucky you!
Shitty bambulab support does it again ! The printer is crap ! DO not buy this single use printer.
Crazy work
thank you, it's nothing special though haha
Missing some balls from the bearing block 😉 or having to use a defective bearing 😐 in the assembly process.
You know 💩 happens.
awesome video.
thanks Retro
Well mine does not make that noise, your just complaining , just talk to bbl and not post your complaint on here
Watch the video. He spoke to the Bambu Lab support and they said that these noises are normal.
@@andreas.grundler well I did watch it, if I was bbl he would be back of the queue to be dealt with,
Making it public is not the right way to go, until you have used every avenue available.
@@leslierogers1276 Then tell me, what other options does a regular customer have besides contacting support?
well you should consider yourself one of the lucky one's then. Mine does as you can see, bbl said it's printer x axis sounds are normal.