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Medic57
(@medic57)
Eminent Member
Enclosure safe Temperature

I was wondering what a safe Temperature was for the electronics in a enclosure? I am building the pieces to build the new enclosure and I'm using a enclosure that was made for the Ender 5. So the power has not been relocated out of the enclosure. Just want to make sure I don't exceed any limits.

Posted : 11/04/2020 7:07 pm
Peter M
(@peter-m)
Noble Member
RE: Enclosure safe Temperature

Power supply needs to go outside the enclosure.

In the summer it will get to hot in a enclosure, then you have to airco the room, suck air out the enclosure or leave door open.

If you print PLA you have to leave the door always open.

Posted : 12/04/2020 3:56 pm
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Enclosure safe Temperature
The Effect of Temperature on the Life of Power Electronic Devices
https://www.ctmmagnetics.com/the-effect-of-temperature-on-the-life-of-power-electronic-devices/

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 12/04/2020 4:34 pm
bobstro
(@bobstro)
Illustrious Member
RE: Enclosure safe Temperature

Just be aware that the E3D V6 hotend used on the Mk3 is air cooled and rated at up to 40C ambient temps. If your temps exceed that, efficiency of the cooling goes down. As that goes down, heat creep increases. This is a real problem for printing with filaments like PLA that can soften prematurely. Be sure whatever arrangement you use has adequate air circulation to move cool air over the heatsink fins.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 12/04/2020 5:20 pm
Anheledir
(@anheledir)
New Member
RE: Enclosure safe Temperature
Posted by: @peter-m26

If you print PLA you have to leave the door always open.

Got all the assembly parts for the Lack Enclosure V2 now but before starting the build I wanted to cut a whole on one of the acrylic sheets to fit a 120mm fan. Also plan on doing a lid that shuts that opening close (for printing ASA or ABS for example) but when opening it switching on the fan automatically to get the hot air out of the enclosure.

Anyone got experience with something like this? I was hoping to not have to leave the door open for PLA that way... 🤔

Posted : 30/04/2020 9:00 pm
Fernando Scheps
(@fernando-scheps)
Trusted Member
RE: Enclosure safe Temperature

I asked support some days back and here is their answer:

To be safe I am keeping my enclosure temperate below 40 degrees.

On Fri, 19 Jun 2020 at 14:26, Šimon Doubek <[email protected]> wrote:
Hello Fernando,
 
the most critical part is a motherboard, the EINSY Rambo.
The max temp with electronics inside shouldn't be higher than 45C.
 

Kind regards, / S pozdravem,
Šimon Doubek
Customer Support
_______________________________________
PRUSA Research
188/7a Partyzánská, 17000, Prague
+420 222 263 718
+421 220 570 305
 
Posted : 14/07/2020 7:26 pm
Txema
(@txema)
Eminent Member
RE: Enclosure safe Temperature

Hello, I have not received yet my new i3 mk3s printer, but I want to construct an enclosure (probably the Ikea Lack v2, although I haven't the multimaterial extension). In this enclosure, I see that the electronics remains inside the enclosure (while in the V1, the power supply was out of it), and I don't know if this is because they can guarrantee that inside it is never reached those 45 degrees indicated before by Prusa. I was thinking in including a temperature controller with a couple of fans to estabilize the temperature inside for better printing with ABS/PETG, but I don't know if it is really necessary (I mean, and improvement) or I could let it simpler and construct the enclosure without the temp controlled.

Thank you very much.

Posted : 18/08/2020 5:57 pm
Fernando Scheps
(@fernando-scheps)
Trusted Member
RE: Enclosure safe Temperature

@txema

Hi, I did that, checked the temperature of the enclosure and if needed I can always activate one of the fans on top extracting some of the heat, that helped to keep the temperature under 40 degrees which is my threshold. You still have to be careful that the fan doesn’t create drafts, so you need the enclosure to be quite air tight to have negative pressure inside. You achieve this by ensuring there are no other bigger openings on the enclosure that would create a flow of wine inside the enclosure that could ruin or affect your prints. Cheers

Posted : 19/08/2020 5:28 am
Txema
(@txema)
Eminent Member
RE: Enclosure safe Temperature

Great!! Thank you @fscheps!! So in this case, it is not necessary to put the electronics of the printer outside of the enclosure... In the IKEA lack v2 enclosure, they have maintained all the electronics inside, while in the v1 they put them outside.. with the fan controlling the temp under 40 degrees it will be safer for the electronics inside. Thank you again!

Posted : 19/08/2020 7:20 am
Crypto83
(@crypto83)
New Member
RE: Enclosure safe Temperature

Hello Everyone ! Following the topic about enclosure and electronics temperature, I wonder how you can put the electronics outside the enclose and still be able to move the printer out of the enclosure for any maintenance if needed ?

I would require to change all cables between EINSY and the printer by longer ones and/or plug them with connectors for possibility to separate the printer and taking it outside the enclosure. Without moving EINSY and power supply staying outside (behind the enclosure for example), if I'm thinkering correctly.

I've never saw a proper picture of thins kind of enclosure mount, is there a kit to do so or any tutorial ?

I've made an enclosure with IKEA PLATSA as why I'm starting to take this point into consideration if I want to print ABS needing warm inside temperature enclosure for example. Relocating the EINSY and PSU would need me to cut a hole on the back panel to pass cables and fixing them between the enclosure and wall.

Thanks for any tips ! Have a good print !

Posted : 02/09/2020 3:18 pm
Kurent
(@kurent)
Active Member
RE: Enclosure safe Temperature

@elsenberger-k

Hey I had the same idea but am afraid it is to much hassle. It would involve a lot of soldering and when its all done it would be really easy to make a mistake in plugin the wrong thing in wrong place. 

But my plan was to use protoboard --->Double Side Board and solder on it all the connectors that are on the EINSY board on both sides. Then buy another set of same cables that are used for all the connections to bridge the connection between the einsy on the outside and the protoboard that is on the inside wall of enclosure. 

After all that I realised that I may be good at soldering but lack knowledge on electronics and connector language and don't even know where to buy stuff like that. Oh I'm also a poor so it would probably be to expensive for me. But maybe one day ....

Posted : 06/09/2020 5:47 pm
Nate
 Nate
(@nate-2)
Active Member
RE: Enclosure safe Temperature

I have the Tarca enclosure and I have the psu and the board inside. so far it hasn't really gone over 40c but I was looking for info from people that successfully moved everything outside their enclosure. This enclosure is V-slot so it should be pretty easy to build a mount but I want to know what I need in the way of additional wires etc.

Posted : 16/09/2020 1:01 am
jsw
 jsw
(@jsw)
Famed Member
RE: Enclosure safe Temperature

I recently added the 3d Upfitters enclosure and added a homebrew temperature controller.

I've had good luck running in the low to mid 30s.

This one has the air input directly on the power supply, so it gets room temperature air to cool it.

Posted : 16/09/2020 1:13 am
Kurent
(@kurent)
Active Member
RE: Enclosure safe Temperature

@brown-nate

If you want to relocate psu only the cables should barely reach the outside. If not they shouldn't be that hard to extend.

Posted : 16/09/2020 4:53 pm
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