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XL official enclosure temperature  

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NoeG
 NoeG
(@noeg)
Eminent Member
XL official enclosure temperature

Is the purpose of the enclosure just reducing drafts, or to actually get to a higher temperature?

The temperature in my enclosure doesn't seem to rise much above room temperature (e.g. right now it indicates 33 degrees on the small enclosure display, 39 on the telemetry, with 25 room temperature). This is after 50min printing PC on default settings (bed temperature at 105). The enclosure fan seems to run continuously.

I am getting some warping on not that big of a piece ( https://www.printables.com/model/65922-silica-gel-spool-container).

Does that sort of temperature seem normal for the enclosure? Too low for prints?

I am wondering if the large gaps on the door, and the large opening at the back might be an issue?

Posted : 17/09/2024 8:21 am
Diem
 Diem
(@diem)
Illustrious Member

The four main reasons:

Draft prevention.

Capture of warmer air thus reducing thermal contraction as a warping reduction strategy.  Usually you only want a few degrees rise.

Sometimes: actively heated to reduce contraction further.

Sometimes when combined with extraction fans and filters: to capture noxious fumes and ventilate them safely.

 

There are other technical, atmosphere control, uses for enclosures but these rarely apply to hobbyist printers.

Cheerio,

Posted : 17/09/2024 11:32 am
NoeG liked
ntdesign
(@ntdesign)
Reputable Member
RE: XL official enclosure temperature

The print has to cool down eventually anyway 😉
I think the idea is that there is a smooth temperature gradient between the layers at any time. This gives the layers more time to cool ("temper") as the bed slowly moves down. Also when the print is finished, you don't want to cool too quickly or the bottom of the print will warp off the bed and cause strain in the part.
I've done quite a few ASA prints at 100°C bed. With the enclosure fan reduced to 60% I get about 50-55°C in the enclosure. This seems to be enough, the prints are perfect. The bed seems to have enough heat capacity by itself, so it doesn't seem necessary to cool it step by step. It takes more than half an hour to reach room temperature. I had good prints with 80% fan as well, but there was a bit of corner lifting on bigger parts.

Posted : 18/09/2024 9:17 am
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