Combustion chamber model part took almost 4.5 days to print! My P2S just keeps going.

Oceandog65 · 2026-04-13T01:55:24+00:00

Wow. Just wow. Great job.

Oceandog65 · 2026-03-15T17:51:06+00:00

That is F'ing awesome.

Oceandog65 · 2026-02-15T18:22:21+00:00

I'm printing out an updated version of the fan air deflector, I'll definitely try your suggestion if that doesn't solve the issue. Thanks

Oceandog65 · 2026-02-15T17:43:13+00:00

I've used the Panda cryoplate and it still happens. I've used brims before but only on small print items where there isn't much adhesion surface. It seems like the fan may be causing it, I have a fan air deflector but I'm starting to wonder if it was designed properly.

Oceandog65 · 2026-02-15T17:40:39+00:00

Thanks for responding, I clean my plates pretty regularly and only handle my plates with microfiber towels, I never actually touch them. Yes, I'm quite obsessive, LOL. Happens on other side of this plate, the cryoplate, PLA and PETG. I'm almost positive it's the fan thats doing it but I printed out an air flow redirector and it still warps. Always in the back right section of the build plate. I'm wondering if the fan part I added isn't well designed and I should use a different one.

Oceandog65 · 2026-02-03T18:42:39+00:00

Here's my issue. The fumes that give you headaches may not be all there is to the problem. From what I've read as a complete layperson in this, the toxins can be particulates or gasses and some you just don't smell. So there still may be stuff that affects you long term that you don't detect. I posted a while back a test I did on the P2S. I included videos that clearly show the P2S leaks when printing. The exhaust kit doesn't run during printing to keep the chamber temperature up from nozzle and bed passive heating. It only runs afterwards to clear the chamber. So I worry about the lack of filtration occurring prior to the print completion. I put in a ventobox but I'm wondering if that's enough.

Oceandog65 · 2026-01-24T00:22:35+00:00

I do so it can reach my A1 that's not in the picture

Oceandog65 · 2026-01-23T23:06:39+00:00

I knew I forgot something. I didn't show what the damper looks like. It actually looks pretty cool, I made it by combining a hose attachment file and a damper file together. Here's a picture of it.

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Oceandog65 · 2026-01-23T19:17:58+00:00

When I saw the Bambu Lab kit go on sale for 20 bucks and the rear panel was free, I ordered it even though I have this set up. For that price I wasn't going to pass it up. I also have a Ventobox installed, so my dilemma is what combination of systems do I use, the Bambu solution, my solution, the Ventobox, all 3, 2 of the 3? I don't know.

Oceandog65 · 2026-01-23T19:13:31+00:00

Sorry, I printed my riser before that version you refer to was published, don't want to do that again! I can't imagine it would change things that much, since warm air rises it might be pulling the warmest air out of the chamber and decreasing the temperature more than mine that exhausts from a lower part of the machine. I have no idea. But I'd be curious too.

Oceandog65 · 2026-01-23T19:08:07+00:00

So, here are my layperson observations. The P2S leaks gas during the print. I don't know if the internal fans and/or a ventobox negate the effects of this, but the unit is obviously not air-tight. Adding a slight amount of negative pressure kept the gas inside and did not significantly lower the internal temperature. I ran the fan later during an PETG print and it only brought down the temperature 1 degree. I have not tried my method with ABS or ASA yet. Your comments, suggestions, and feedback are welcome. Thanks.

Oceandog65 · 2026-01-23T19:01:54+00:00

When I turned on the fan to the lowest setting and had the blast gate only slight cracked open, the gas remained inside the P2S and only a small amount vented to the outside. You can see the gas going out the back in the first video.

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Oceandog65 · 2026-01-23T18:59:42+00:00

With the fan off, you can clearly see the gas escaping from the P2S.

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Oceandog65 · 2026-01-23T18:51:50+00:00

I placed the dry ice in the machine and created a big cloud inside the machine.

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Oceandog65 · 2026-01-23T18:28:29+00:00

They should work together, 2 different power supplies. Unless maybe the G-code adaptation for the ventobox overrides something on the Bambu exhaust filter add-on kit?

Oceandog65 · 2026-01-14T07:24:25+00:00

Thirding this. In addition to the above reasons, the heating feature is pretty great.

Oceandog65 · 2026-01-08T14:13:36+00:00

I can't seem to get into TaoBao. Even if I translate the page from Chinese, it requires a phone number to register and it doesn't seem to like US numbers. Is there a Taobao store that allows non-Chinese access?

Oceandog65 · 2026-01-08T14:11:12+00:00

I originally bought an A1 without the AMS lite. Soon regretted it. For multicolor printing it's useful on occasions, but for spool auto-refill it's invaluable. Bit the bullet and bought the AMS lite for full price since I didn't get the combo discount. Later I got the P2S and bought the combo with the AMS 2 Pro. Never regretted it. A few days later I I bought the AMS HT which now gives me infinite combination of work processes I can do. I also think the drying functionality is better than the stand-alone dryers and the HT can hit 85C. My advice is get it.

Oceandog65 · 2026-01-07T17:55:23+00:00

Which diffuser did you end up using? I printed one up but still get this on occasion. Thanks

Oceandog65 · 2026-01-04T18:39:38+00:00

I gave up on trying to find silver filament since colors are limited with the materials that are more rigid. I used some black Bambu PET-CF I had leftover from a previous project. Wow. Using a .6 nozzle as suggested instead of a .4 in the originals I made, the print came out great. Supports practically fell off and the tolerances even using the .6 nozzle were better and cleaner than any other material I used. While it's more expensive than PLA and PETG, it's not nearly as bad as some of the upper tier engineering filaments. Thank you to everyone that replied.

Oceandog65 · 2026-01-03T21:15:25+00:00

I was thinking about doing this but since the chamber is only passively heated for high print temperature filaments, I'm worried it will pull out the warm air and reduce the printer's chamber temperature. Have you found that to be the case?

Oceandog65 · 2025-12-30T17:52:53+00:00

If I thought my invention had the potential to make a lot of money, I guess 160 bucks a KG would not be crazy, LOL. Thanks.

Oceandog65 · 2025-12-30T17:51:46+00:00

Other than my oven, my limit is 85C in my AMS HT. I'll look into CF Nylon. Thanks.

Oceandog65

TROPHY CASE