Building a 3D Printer Enclosure for Prusa i3 Mk3s

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Homemade/ DIY industrial like Enclosure for the 3d printer - Prusa i3 Mk3s.
The idea was to built an enclosure for the 3d printer that reduces the overall noise level of the printer and allows to control the chamber temperature. In this way it is now possible to print materials such as nylon and abs successfully and quietly.
The 3d printer is a Prusa i3 Mk3s, which is also slightly modified. The construction of the Enclosure is based on Aluminium extrusions and HPL panels. The noise reduction was achieved by adding noise insulating foam (fire retardant cl. b2) to all side panels. To control the chamber temperature a simple P-controller + hysteresis with a thermocouple as temperature probe inside the chamber was used, as well as a Noctua fan on the back of the enclosure for regulating the air flow - 'cooling'.
Built in 2020

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Опубликовано:

5 май 2020

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Комментарии : 59

@boltyfpv8592 2 года назад

by far the most professional looking 3d printer enclosure out there!!!!! its absolutely insane!!!! good job

@EngineeringSpareTime 2 года назад

Thanks! :)

@robertgcode965 4 года назад

Wow, great build man!

@timd9430 4 года назад

Engineering "Spare Time" Wish I had that kind of "Spare Time" on my hands! I seriously "hope" you've quit your day job and are custom building these for order... you may be backordered as much as PRUSA if not already. Love that Taupe color. See you opted out for that ugly Prusa Orange for the MK3S. ; )

@EngineeringSpareTime 4 года назад

“Spare“ time is “rare“ time - isn‘t it I haven’t - unfortunately no backorders yet.. Right, neon orange wouldn’t suit the appearance, that i was aiming for. RAL 7011, RAL 7035 in combination with anodized aluminium is always a good one in my opinion ;)

@daspicsman 3 года назад

Now that is some high quality printer enclosure

@EngineeringSpareTime 3 года назад

Thanks :)

@grahambell5847 4 года назад

That is just wonderful.

@steved479 3 года назад

Great stuff, this channel will take off in no time if you keep up the amazing work!

@LXLEE 3 года назад

This is TOO GOOD! 👏👏👏

@MMGZZ 4 года назад

Really nice.

@craftzars 3 года назад

Cool project

@EngineeringSpareTime 3 года назад

Thanks!

@mrwalter1049 4 года назад

That looks great! Is the noise reduced roughly the amount you expected it to?

@EngineeringSpareTime 4 года назад

Thanks! Yes, the noice level has been reduced quite a bit. You can just hear it while it’s doing rapid G0 movements (low frequencies). Now it’s actually possible to have it around the office.

@emilemouannes2236 2 года назад

Wow that is a very well thought of design and build. Bravo! I have been looking for a design similar to that. Rule #1 in engineering, dont start from scratch when can. So I have to ask. Are you comfortable sharing the CAD/BOM? I am looking on building the same.

@quintenceelen6862 4 года назад

Very nice! You got a detailed BOM and drawings for those machined parts?

@EngineeringSpareTime 4 года назад

Thanks! Yes, I do have a cad model, drawings and part lists for all components.

@bitsurfer0101 4 года назад

@@EngineeringSpareTime Would you have it open source soon? Thanks for posting.

@EngineeringSpareTime 4 года назад

3D LAYERS I probably won't bring it open source, but thanks for asking. It is probably more difficult to find and configure all the suppliers of the exact parts than it is to build your own enclosure. It would then be easier to provide all components as a complete set...

@codyedition 4 года назад

@@EngineeringSpareTime I'd love to have a copy of your .CAD file and the components if you're willing to share your design! love this

@timd9430 4 года назад

@@codyedition Wouldn't we all.

@Allmentux 2 года назад

Awesome solutions! How does this cabinet react to rather fast changes on movements of the printerhead? That causes the strongest vibrations on "normal" tables.

@EngineeringSpareTime 2 года назад

Thanks! It is suspended on elastomer buffers, which are dampening around the eigenfrequency of the overall printer (total weight of the customized printer considered). This works not too bad -> fast changes in motion are barely transmitted to the surrounding enclosure. The portal of the printer is relatively stiff in this arrangement, this shifts it’s eigenfrequency to a higher level, thus its vibration frequency is higher too.. reduced tendency of ringing in the print. But the this would be dramatically improved by swapping the cylindrical rails on the Z and X axis with linear guideways - as I did on the x axis. Means: those rails are the weak point at the moment and still allow for ringing when the print head is stopping fast..

@jameskirk3210 3 года назад

So nice! A real luxury💰💰💰 enclosure and by redesigning the printer, I suppose you have increase its efficiency by far. Have you planned to show us some prints? Please do🙏🙏🙏 👌👍🖖

@EngineeringSpareTime 3 года назад

Thanks! The print quality increased a bit, due to the more stable frame. I’m not finished with the printer yet. Linear rails in X and Z as well as a Aluminium bridge for the X axis are planned. I have also designed a water cooled hot end to get the printer even more reliable. This should improve the print quality even more - I hope :)

@jameskirk3210 3 года назад

@@EngineeringSpareTime Thanks a lot : so we should see soon many awesome videos😁👌👍🖖

@oferkrupka 4 года назад

links to parts used and how did you make the control panel? It looks good, I want to use some of your ideas in my design.

@EngineeringSpareTime 4 года назад

Thanks. I basically used local suppliers - links are probably not too helpful in this case. For the overall build I just used a cordless drill, a knife and a saw for the panels. For the control panel: I‘m lucky enough to own a homemade CNC milling machine :) I‘m using a shielded extension ribbon cable for the display and for the overall wiring, there is a DIN rail installed in the drawer.

@michael.knight 4 года назад

Really nice enclosure. Is there a specific reason you went for HPL panels?

@EngineeringSpareTime 4 года назад

Thanks! There are multiple reasons: - good temperature resistance and stability (e.g. PVC foam panels: just up to 60°C; won`t catch fire that easy) - high rigidity (good for large panels - less fixing points) - high density (lower eigenfrequency - do not act like a membrane at higher frequencies..) - wear resistant surface - „nice“ to work with (machining, drilling, sanding..) - pre colored in different colors - most important: UV and weather resistant :D But this comes with a higher price

@michael.knight 4 года назад

@@EngineeringSpareTime Thanks! Those are some good points. I was wondering because I know they are quite expensive :) But it seems really worth it. Just another question if you don't mind, how much does the sound reduction come from the panels and how much from the sound dampening foam? I'm considering buying a server case as an enclosure to save costs, but they are quite thin sheet metal. I was wondering if adding noise insulating foam would be enough to reduce the sound just by itself.

@EngineeringSpareTime 4 года назад

I think it’s enjoyable to used materials that are well suited for the job. An server case is also a good idea for an enclosure. For the thin sheetmetal: The noise insulating foam won‘t be enough. I‘d rather use adhesive dampening foil - e.g. PU based. Those increase the weight of the sheetmetal and shifting the eigenfrequency to a lower spectrum (lower than the sound frequencies you‘re trying to damp..) You could get them as car accessories

@EngineeringSpareTime 4 года назад

You could also combine the noise insulating foam and the noise dampening foils

@michael.knight 4 года назад

@@EngineeringSpareTime Ah yea, that's a good idea. Still trying to find the optimal combination of cost, sound proof, and fireproof. Seems like it will be a significant investment whichever method you pick...

@digital0785 3 года назад

thats impressive as F and i bet people would buy the shit out of them .. i'd buy one in a heartbeat for my ender entender 3

@EngineeringSpareTime 3 года назад

Thanks! If I knew that there was interest in the enclosure and, above all, what price would be acceptable , I could think about it. I would be able to adapt them to different printers and produce several of these enclosures :)

@digital0785 3 года назад

@@EngineeringSpareTime did someone say kickstarter?

@digital0785 3 года назад

@@EngineeringSpareTime tbh i think having options for different cost. 1. plans to do it 2. you include stl for the plastic parts and such and then the other hard parts then then 3 you provide everything :) that would give people the ability spend to their budget. and i'm sure you could find a size that is pretty useable for most printers and even then just change the drawer plate for the different electronics to make doing them easier for you :)

@EngineeringSpareTime 3 года назад

digital0785 That‘s definitely worth a thought.. The main “problem“ is, that the cost for components is mostly driven by the aluminium extrusions and the HPL panels not to much by the printed parts. But indeed the idea off offering it in different levels of completion is nice (like Prusa themself). The drawer plate could be a laser part - that’s actually cheaper, quicker and more flexible. Thanks by the way for sharing your thoughts to this :)

@mikefromwa 3 года назад

Fantastic build! What's the cost for something like this?

@EngineeringSpareTime 3 года назад

Thanks! The components themselves, about half the cost of the basic printer.

@Marci124 3 года назад

Do you have any tips for the extruder overheating? I built myself the v2 LACK enclosure, and cannot run a PLA print over an hour with the doors and top closed, because the heat from the extruder motor creeps through the shaft and softens the PLA through the gears enough to cause it to lose grip and fail extruding. I plan to build some sort of ventilation system sometime, and I'm interested if you encountered any such issues.

@EngineeringSpareTime 3 года назад

Yes, I experienced the same. For PLA the enclosure temperature should stay below 30 degrees C. For PETG its around 38 without modifications of the printer. I added a heat sink and a fan to the Extruder motor, this helped a bit - its now stable at the temperatures I have mentioned before. I installed a temperature controller with a 120mm fan at the back of the enclosure to adjust those temperatures. In the long run I will build a water cooled Extruder so that overheating is not a thing anymore.. I‘ve also thought about changing the Extruder, I don’t know if this will effect this problem by a lot though.

@Marci124 3 года назад

@@EngineeringSpareTime Thanks for your answer! Some extruder redesigns use a pancake motor instead of the fat one, reducing heating, but also the torque. As I'm pulling my filament through 90cm of PTFE tubing, I'm not sure how comfortable I am with switching the motor. It seems a ventilation system is a must for printing fully enclosed with the Mk3S, I should get started on that one soon.

@EngineeringSpareTime 3 года назад

@@Marci124 I would not go with a smaller motor.. I agree, you should start with the ventilation system.

@jeremyh99 3 года назад

Warum hast du an der einen seite so breite profile benutzt ?

@EngineeringSpareTime 3 года назад

Weil der Motor der X-Achse beim Prusa auf der linken Seite etwas heraus steht. Durch die Verwendung des breiten Profils kann man das so ausgleichen, dass das Druckbett mittig zu dem Zugang steht. Zudem wird die kühle Zuluft über den so entstandenen spalt von unten zugeführt. Und letztlich gefällt mir die Asymmetrie besser.

@Marcos-tj8nk 2 года назад

what temp do you set your thermostat?

@EngineeringSpareTime 2 года назад

For PETG to 42 °C

@Marcos-tj8nk 2 года назад

@@EngineeringSpareTime I use the same chinese thermostat. I was afraid to go above 30°, but I'll try a little more like you. Beside the fan out, does it have a fan or hole for fresh air to get in?

@EngineeringSpareTime 2 года назад

It works great for me at those temps. Yes, air is getting in from underneath the enclosure. The fan exit has a hepa filter attached to it as well

@Marcos-tj8nk 2 года назад

@@EngineeringSpareTime great job

@timd9430 4 года назад

No, this is how you build a proper enclosure: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YCdvL87bv0w.htmlm42s

@EngineeringSpareTime 4 года назад

And totally save - what could go wrong. It was probably just a quick test for him.. hopefully