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Warped bed and used printer?
uwbe25
Posts: 3Member
Hello A5S sufferers,
sorry to start that way but that’s what I am currently doing...just suffering... more than one week now but I wasn’t able to print any acceptable piece on the A5S....well it’s certainly my fault...but I hope to get some advise from you guys....
Let’s start with the assembling of the printer...a bunch of tiny screws M2, M3 and M4? That was the first point in time where I thought that could be funny...3 tools, one for every size coming with the printer...great!
So it must be cost saving in production to drill holes of different size for the same purpose....
Anyway, assembled it and tried to load the filament...but I couldn’t....after a short investigation I found a piece of filament already stacking in the extruder. Argh! Did I get a used one for the price of a new? Asking the after-sale chat they said it’s usual because they test each printer before shipping! Lol I’ll come to this later...but could you guys confirm you had a piece of filament blocking your extruder on your brand new printer?
So next thing - bed leveling.... leveled the four outer points and moved to the fifth....Argh...scratching noise...the bed is so badly warped...a hill like Mount Everest in the middle....must be about 0.4+ mm higher
than the edges...after-sale chat asked support with the response ...I should level the edges 0.3 mm and the middle 0.1mm and it will print...sure...somewhere...tiny pieces...and the nozzle would scratch in the middle...
So I asked for a new bed, but from some other threads in this forum I had the feeling I should rather look for a new bed on my own...so I did....and guess what...this new bad was already warped when it arrived...before I exchanged it I straightened it manually...may be I should make a little Video how to do...
The design of the bed has a problem by default...I owe you a beer if you can show me a heated bed out of the box that isn’t warped with a hill in the middle...
So I mounted my new bed and it doesn’t have the problem with the hill in the middle anymore...but it is still not 100% even...so I have seen the great videos on mesh bed leveling from you guys...and I really would like to install the latest custom firmware...but where can I find it? What is the latest stable version? And before installing it...where can I find the latest product firmware for backup?
Thanks for your help,
uwbe25
p.s. Was there any lucky guy in this audience, who could print a 300x300x2mm test piece out of the box directly on the „diamond glass“? I hope to get 1000 answers...
sorry to start that way but that’s what I am currently doing...just suffering... more than one week now but I wasn’t able to print any acceptable piece on the A5S....well it’s certainly my fault...but I hope to get some advise from you guys....
Let’s start with the assembling of the printer...a bunch of tiny screws M2, M3 and M4? That was the first point in time where I thought that could be funny...3 tools, one for every size coming with the printer...great!
So it must be cost saving in production to drill holes of different size for the same purpose....
Anyway, assembled it and tried to load the filament...but I couldn’t....after a short investigation I found a piece of filament already stacking in the extruder. Argh! Did I get a used one for the price of a new? Asking the after-sale chat they said it’s usual because they test each printer before shipping! Lol I’ll come to this later...but could you guys confirm you had a piece of filament blocking your extruder on your brand new printer?
So next thing - bed leveling.... leveled the four outer points and moved to the fifth....Argh...scratching noise...the bed is so badly warped...a hill like Mount Everest in the middle....must be about 0.4+ mm higher
than the edges...after-sale chat asked support with the response ...I should level the edges 0.3 mm and the middle 0.1mm and it will print...sure...somewhere...tiny pieces...and the nozzle would scratch in the middle...
So I asked for a new bed, but from some other threads in this forum I had the feeling I should rather look for a new bed on my own...so I did....and guess what...this new bad was already warped when it arrived...before I exchanged it I straightened it manually...may be I should make a little Video how to do...
The design of the bed has a problem by default...I owe you a beer if you can show me a heated bed out of the box that isn’t warped with a hill in the middle...
So I mounted my new bed and it doesn’t have the problem with the hill in the middle anymore...but it is still not 100% even...so I have seen the great videos on mesh bed leveling from you guys...and I really would like to install the latest custom firmware...but where can I find it? What is the latest stable version? And before installing it...where can I find the latest product firmware for backup?
Thanks for your help,
uwbe25
p.s. Was there any lucky guy in this audience, who could print a 300x300x2mm test piece out of the box directly on the „diamond glass“? I hope to get 1000 answers...
Comments
Well, some tweaking was necessary to get my A5S working (farewell warranty!).
1.) I straightened the new bed with a hammer (only do this if you know what you are doing :-)) and the warped bed problem was solved...leveling looks really good.
2.) The U-profiles, where the heated bed is mounted on were twisted in themselves. So there was a lot of tension on the M3 screws, which hold the bed. They warped the bed on the edges due to the tension.... I drilled up the holes to take tension from the screws and put some larger washers on the bottom of the spring and before the set screw...
3.) Now another print test, cross fingers...beautiful outer walls...but unfortunately...lines doesn't stick together...empty spaces in the print...under-extrusion :-(. I remembered one video from Samuel?, where the community firmware was explained and that it fixed an under-extrusion of 14%. At that time I didn't really understood what it meant...now I know. But setting the value in the slicer didn't help in the first place. The under-extrusion seemed to follow a pattern. I put my finger onto the filament before it gets into the extruder and could feel how it moved...but every 20 seconds or so it stopped and the filament stopped to get out of the nozzle...mmh, its a new printer...watching more videos from the community and then I did two things: I exchanged the "new" nozzle with a new one and took the bowden tube out of the black cover tube and shortened it as much as I could (I saw this in one of the videos)...
... now you see a happy German... printing since 11 hours and 31 minutes... and it really looks good so far... but as always with the Germans...there is something to complain about. I have to baby-sit the print because the turns on filament coil don't lie side by side but overlap sometimes. In this situation the sling pulls closer until the extruder cannot pull more filament and the whole print gets wasted. In the videos I have seen you have printed huge objects..which I guess took 2-3 days!... how do you ensure that the filament comes save from the coil without blocking?
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