Prusabox PSU Cooling Fans for Prusa MK3s Power Supply when using Prusa Box 3D Printer Enclosure
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- เผยแพร่เมื่อ 19 พ.ค. 2024
- Keep your Prusa PSU cool in Prusa Box 3D printer enclosure by adding fans. Use with Prusa Mk3.
Video shows 2x 30mm fans aiding the flow of air through Prusa power supply, when installed in the PrusaBox 3D printer enclosure.
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Useful links:
Files to download - the fan bracket and modified buck converter base. Included STEP files so you can make your own modifications!
www.prusaprinters.org/prints/...
Link to PrusaBox if you want more info on this 3D printer enclosure
www.printer-box.com/?wpam_id=1
#prusabox
#prusa
#mk3s
#enclosure
#3dprinter
#cooling
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Happy New Year Eve! And thanks for the continued awesome tips and designs, awesome videos...
Thank you very much!
Love it! Thank you very much!
Très bonne idée cette ventilation ,car j'imprime beaucoup de PETG donc cela va mettre utile et mes composants me remercierons. Toute mes félicitations pour votre travaille, j'attend avec impatience vos câblages, car j' ai beaucoup de mal avec l'électricité, je mélange toutes les différents câblage. Les votre et ceux de Printerbox. Mais je vais bien finir par y arriver.
Thanks for the video. I would like to see some videos from you assembling a Voron printer. Keep up the good work.
You supply the parts, and i will make it :)
@@colinhill you have to contact one of the kit manufacturers for example LDO or :)
Another great video, thanks Colin! One question for you. Are your fan wires extending all the way into the case from the fans themselves or did you join them within the bracket to supply wires coming from the relay and buck converter? If you joined them to supply wires, what method did you use? Trying to determine how to fit a connection for 4 wires within the bracket itself as I'm not sure my 30mm fans have long enough wires to reach all the way into the case.
I soldered extensions to the originals as they were too short. Heatshrink to cover joins.
@@colinhill Thanks!
Awesome job, thanks a lot for the insight. I have a few additional questions about the electric:
When I add two fans like you, can I plug in the following all to the 5A output of the buck converter:
- the two PSU fans from this video
- the fan for the mainboard cooling
- the led lights
- the high pressure fan with hepa filter
Possible?
Assume you mean 5v not 5A? Not really. High pressure fan likely to be 12v so use the 12v connection on buck converter. I would also suggest using 12v for leds. If you add a Pi I would suggest using a dedicated Pi power supply which I will be doing soon.
how do you wire the fans up? happy new year
There are many options. Are you using a buck converter? Or using another source of 12v power for bits like LEDs etc. I didn't go into too many specifics but could make a follow-up video if you feel it will be useful
@@colinhill yes that would be great if u can
Hello There Colin! I have installed my High PSI extractor fan in my Prusa box. To me it seems not to be displacing much air at all. The hepa and carbon filters are new. Any Ideas? BTW the instructional videos on the Prusa box build were excellent!!! I never had to look at anything else in order to complete my assembly
Hi. You should feel a good flow of air at the rear of the box where the two vents are. Or try holding a piece of letter paper at the rear and it should be moved by the airflow. The Noctua i have used in the past has an airflow of 186,7 m³/h, and the Sunon EEC0251B2-000U-A99 is 158m³/h which i have fitted in my current Prusa Box (from Printer Box site). You can get stronger high pressure fans if needed. how does the fan you are using compare on its rating?
@@colinhill Colin, Thanks for your reply... I bought the fan with the prusa box. It was called out as a X-Fan RDH1225S1? Printer is running at the moment so I cannot see the brand but will check when print is done. I have reached out to Printer ox but They have not replied. I did take tissue paper as you mentioned and placed it in varoious areas. There NOT Good flow out the back. As a former engineer I do not care for th change is airflow how the prusa box is designed. There is more flow back int the box around the perimeter area of the fan. As soon as I place the carbon , or hepa filter with fan, hardly any flow. I have tried blowing through the hepa and carbon filters by mouth and i can say it is hard to pass air through either one. I cannot cool internal enclosure with PLA to 30 C with only home temperature at 73°F. With fan at full out internal temp in 33 C And I also have your power supply fan system added and running it as well?
I just looked up the model of that fan.... 87.79cfm is the tech spec.... It might be high psi but certainly not even close by the CFM you have called out. Time for a search for another fan. Thks
@@punkin5112 one CFM is ~1.699 m³/h so your 87.79cfm is 149 m³/h which isn't to far below my current fan at 158. There is some 'blow back' into the enclosure, and thats because the hepa filter is very dense. For PLA you MUST keep one of the doors open - perhaps the top window. Otherwise the enclosue will get too warm. The fan probably won't be able to cool the enclosure below 31-33 degrees at PLA heater settings. An alternative for the fan might be to locate the fan outside the enclosure so it sucks the air. There is no 'blow back' with this method. But does mean designing something to work. So bottom line, if you are only printing PLA then keep the top door open. If you are doing PETG or ASA/ABS then the higher temps work better.
@@colinhill Thanks Colin... I do plan to print ABS in the future so your thought is interesting. Thanks Kindly!
I also ordered the Prusabox and, while I'm watching your videos, I'm thinking about building the power supply on the outside of the Box, so that I don't have the problem with the heat and to also have a durable power supply. I would put the Prusabox on an Ikea Lack table and print the holder that can be downloaded everywhere. What do you thinking about?
There are two large holes in the casing for the PSU cooling so that would be an issue I think. The fans I used do a good job. Also depends on the temp of the enclosure. Anything under 30 degrees is fine for PSU with no extra cooling
The lack tables are smaller than prusa box. How do you plan on making this fit on lack table? I ask bc I wanted to do the same.
Do you have the STL for a top for the buck converter case or do we just leave it open in the enclosure?
The standard cover can be used, or the one i am currently using for relays which is here th-cam.com/video/WpepmsB_Cco/w-d-xo.html
Because of the labels it looks like you are not blowing fresh air into the psu, you try to to suck it out?
That is correct. You can do in either direction. But if you blow air into the end vent remember the output side is facing the bottom. Heat rises, so I'm not sur how effective it will be to push warm air out.
@@colinhill Yeah, better try to stimulate a flow from underside throught the PSU by sucking the air out. Thanks!