MissChanger with Nevermore StealthMax?

[@akanar_1924]

I print PETG and ABS on my 2.4 by only decreasing bed/nozzle temp by 10-20C. No other changes. No issues with PETG with chamber temps. I used to think like you did and had exhaust vent air but it does not matter.

[@vinny5915]

PETG is the in-between kind of filament. It is printable between 30C and 40C chamber temp, depending on the brand. But, PLA is a no-go at that temperature range

[@themaazmaaz]

What is the thickness of the top panel you installed? The PCBWay is listed as 3mm. Is it acrylic as well or PC? Does it feel solid or sag any? You may want to cannibalize the nevermore micro and use the ellis bed fan mod. I did the same as you for a few weeks after installing a stealthmax (back panel though; I have a second top-mount printed that I haven't installed). The ellis bed fan setup circulates noticeably better. So well, in fact, you have to have a custom ramp-up time based on bed temp so you don't warp your bed.

[@vinny5915]

The top panel is 3mm acrylic. I am using a modded flow chamber design for the NMSM, which bolted it in place with 7 M3 bolts. Thus, the NMSM actually adds to the structural integrity of the panel instead of causing any noticeable sagging.

[@atze1348]

If I understand correctly, your trap door mod replaces the stock removable air duct and exhaust slider with something that's a little faster and easier to use? Do you find that in exhaust mode, it provides sufficient cooling to the chamber to print PLA without removing panels?

[@vinny5915]

Q1, Yes. Q2, Yes. It is not as good as without the panel. The chamber temp stabilise at 30C, which is workable with PLA but not as good as if it is at room temperature, 22C.

[@atze1348]

@@vinny5915 Thanks!

[@Gateseleven]

this 3d printer looks expensive?

[@RoasterOven]

you can build a standard Voron 2.4 R2 for ~$1000. Most of the printer is printed. that's without the multiple print heads though

[@vinny5915]

Additional tool-head is ~$200 each, then add another ~$200 for the additional fans and electronics.