Bambu Lab P1S Combo

[Chris Savage]

So most of you know that I have (had) two Bambu Lab A1 Combo 3D Printers. I recently sold one and got a Bambu Lab P1S Combo. Both printers support 256mmx256mmx256mm print size. Both support 4-color (or more) printing.

There were two reasons for this. The first is that the A1 can print many filament types, however, as an open-frame 3D printer, the fumes created by certain filament types are released into the air and my workshop and den do not have sufficient ventilation, nor do I wish to be in the room even when printing PETG. The P1S is enclosed and has a filter, so it is safer to print filaments like PETG and even ABS, which I have a need to print, eventually.

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The second reason is space. As you can see in this photo, the A1 Combo takes up significant space. There was no enough room to put both A1 Combos on the same bench, so each was on a separate bench, one each in two different rooms. This is because the AMS sits next to the printer and the poop bucket sits on the opposite side. The AMS for the P1S sits on top of the printer and the "poop chute" goes out the back of the printer.


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Last night, I finally got the opportunity to set this new unit up. Besides the P1S being an enclosed printer, a few notable differences are that the P1S bed moves up / down, rather than forward / backward as the A1 does. This greatly reduces inertial motion that the A1 experiences. The display panel on the P1S is monochrome and very simplistic compared to the full-color touch panel of the A1, though most things are done through the smart phone app anyway. Finally, while the A1 camera is built into the z-axis bar and has a single LED for illumination, the P1S has a light bar and the camera is mounted in the front corner, so looking more at the front of the bed, rather than sideways like the A1.


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Here the AMS has been mounted. Obviously it works differently than the AMS Lite that comes with the A1. A great feature of this AMS is that is keeps the filament covered and protected, but more importantly, keeps it dryer! In the wake of me having to put several spools through the dryer, this is a great feature.


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Looking at the back of the printer, I chose not to mount the spool holder, since the AMS is sufficient and I will not be using an individual spool on the back. I know that waste is expelled from the back, however, I'm not yet sure how I will deal with that. I guess I will examine some of the waste options for the P1S on MakerWorld.

[Chris Savage]

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I finally got the filament loaded and completed setup when I got home from work.


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Tonight I was able to complete calibration and print a Benchy!

While it was printing, the A1 was busy printing some wise cats for a birthday gift to my sister-in-law.


The Three Wise Cats

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This is how the cats came out on the A1.

[JKnightandKARR]

Nice.

[granz]

That first picture in your response post # 1 really shows what you were talking about - that newer P1S is much more compact. Nice.

[Chris Savage]

That first picture in your response post # 1 really shows what you were talking about - that newer P1S is much more compact. Nice.

Thanks, granz.

A1 Purge Waste Bin and Deflector

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The A1 poop (waste) bucket sits along the left side, taking additional space.


Poop bucket for X1/P1. Magnetless/screwless mount.

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The P1S sends the poop (waste) out the back, so I made this poop bucket that simply hangs from the sloped port on the back. No magnets or screws needed.

[granz]

I don't remember seeing anything about waste removal on my Neptune 2. Is that only on the newer printers? How does the printer know what is waste, and how does it get rid of the waste?

[Chris Savage]

I don't remember seeing anything about waste removal on my Neptune 2. Is that only on the newer printers? How does the printer know what is waste, and how does it get rid of the waste?

I know some newer Elegoo printers have "waste bins". Basically, there are three ways that the printer generates waste. The first is when it's about the print. My printers perform something called, "Dynamic Flow Calibration", which measures the rate at which filament moves through the nozzle. It generally does this ~3 times before each print. Each time there's just a blob of filament that gets ejected.

The second way is when you switch colors. The print head has to cut the filament and then purge the old filament. Then it has to perform the DFC on the new filament. All of this creates little blobs of waste. The third way is basically just like the second, but when you run out of filament or there is a jam and the print head stops. When it continues it will purge and do DFC.

P.S. - Later I will post a photo of the waste and a video of the DFC.

[granz]

I don't remember seeing anything about waste removal on my Neptune 2. Is that only on the newer printers? How does the printer know what is waste, and how does it get rid of the waste?

I know some newer Elegoo printers have "waste bins". Basically, there are three ways that the printer generates waste. The first is when it's about the print. My printers perform something called, "Dynamic Flow Calibration", which measures the rate at which filament moves through the nozzle. It generally does this ~3 times before each print. Each time there's just a blob of filament that gets ejected.

The second way is when you switch colors. The print head has to cut the filament and then purge the old filament. Then it has to perform the DFC on the new filament. All of this creates little blobs of waste. The third way is basically just like the second, but when you run out of filament or there is a jam and the print head stops. When it continues it will purge and do DFC.

P.S. - Later I will post a photo of the waste and a video of the DFC.

Got it. Mine does not (or did not when I used it) do the DFC, and it does not have multiple colors. So, I'm going to say that it won't ever do the waste removal - except for the mess that it made of the Christmas Sleighs that I tried.  But those had to be removed manually, by me.

[Chris Savage]

Got it. Mine does not (or did not when I used it) do the DFC, and it does not have multiple colors. So, I'm going to say that it won't ever do the waste removal - except for the mess that it made of the Christmas Sleighs that I tried.  But those had to be removed manually, by me.

Interestingly, the waste (poop) from the A1 is kinda random (I still need to post a video). But last night I took a top-down photo of the P1S waste bin, and this is what it looks like. More uniform poop. LOL As for why I didn't get the video posted, see my next post about the worst 3D print failure I have ever had!

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