- Introduction, Filter Assembly Box, Filters
- Automatic Fire Extinguishers
- Temperature Controllers
- Enclosure Material Options
- Alternative Filter Assemblies/Ventilation Unit
- Various DIY Enclosures
- My Enclosure
Note: Contents of this post are subject to change without notice. All links are non-affiliate. I do not receive monetary compensation from link clicks.
As 3D printers emit both VOCs and EFPs (see previous post), two types of filters are needed; HEPA and Carbon. The two filters and a fan comprise a filter assembly box. The assembly can be made to exhaust or recirculate air.
Per Louisana’s Energy Curriculum Guide – “The recommended minimum filter surface area is 2.50 cubic feet per minute (cfm) per square inch of filter area” for heating ventilation air conditioning (HVAC) systems. My 24″ x 24″ enclosure is 8 cubic feet. Using a calculator for fan air exchange, 9 cfm are required for a fan. I estimated I needed a 4″ x 4 ” filter.
Nilfisk advance small appliance vacuum cleaner parts.
100 mm L x 100 mm W x 36 mm H
6″H x 4″W x 1″D
$33.22 + free shipping
Dimensions 120mm x 120mm (4.72″)
“Includes 3 HEPA filters and 3 carbon filters.” Package Dimensions 5.1 x 5 x 3.4 inches
Model design by Sandra James. Design can be adjusted in Tinkercard.
Virgin coconut shell bulk activated carbon.
More information about filters: HEPA Filters and ULPA Filters Information- Engineering 360; Hepa Filters; How Long Do HEPA Filters Last?; Flow Rate, Velocity, Pressure Drop Chart; technical data; Complete Guide to Activated Carbon; Carbon Depth Chart.
HEPA filters are resistant to airflow, requiring a static pressure fan.
Dimensions: 20mm×120mm×38mm | Connector: XH2.54-2Pin|Rated Voltage: DC 12V | Rated Current: 0.5Amp±10% | Rated Speed: 3000RPM±10% | Air flow: 120CFM | Noise Level:37±10%dBA
- Dimensions : 120 x 120 x 25mm
- Voltage : 12V
- Bearings : Ball
- Speed : 3100rpm
- Airflow : 108.2CFM
- Noise : 44.5dB(A))
- Max Airflow: 12/14 40.6/51.1CFM.
- Max Speed: 12/14 1500/1400RPM
- Connection: 3-pin.
- Noise: 12/14 24.6/28.1 dBA.
Air flow – 57.24 CFM. Noise level – 26.4 decibels
“PARAMETERS: Size: 4.72×4.72×0.98 in | Bearings: Dual Ball | Voltage: 12V | Current: 0.45 Amp | Air Flow: 114 CFM | Noise: 49 dBA | Lifespan: 50000 Hrs”
- Air flow – 60.5 CFM.
- Noise level – 25.0 decibels
“This 12 volt DC fan gives you extremely high airflow of 185.87 CFM and extremely high pressure of 12.15 mmH2O at a maximum speed of 4200 RPM and 58.7 dBA of the noise level.”
“120x120x25mm, 12VDC, 120CFM, 42dB, 3100RPM” 2 wire leads
- 2m Waterproof probe -Digital temperature controller 110V can be used in moisture and water environment, you can use it in home brewing, fridge, pet breeding, reptile, tank, incubation, fermentation, seedling heat mat, accelerating germination.
- On/off control mode – Turn on at one degree and turn off at another degree.
- Wire heater and cooler at the same time- This stc-1000 temperature controller has 2 Relays….wire 2 appliances (heater and cooler) at the same time.
- “Can control both heating and cooling output
- Has an alarm to indicate sensor failure or high temperature”
- “Intelligent thermal fan controller with on-board processor and digital LCD display.
- Controls up to six AC Infinity Cabinet and USB Fans, see below for compatibility.
- Automated programming that self-adjusts cooling power in response to changing temperatures.
- Features an alarm system, display lock, six fan speeds, two buffer options, and power failure memory.
- Includes precision thermal probe, mounting screws, and power wall adapter”
Smart Exhaust – Temp Control Kit
- “Smart Temperature Control
- Digital Temperature Control
- Exhaust Outlet Activated Carbon Filtration
- Flexible Temperature Probe”
$79.21 for pair
Dimensions: 6.2 x 4.74 x 8.3 inches
1 in. x 96 in.
22″ x 22″
1/2 in. x 2 ft. x 4 ft.
Free custom cut available
24″ x 24″ x 30″ (W x D x H)
24″ x 24″ x 90″ (W x D x H)
30″ x 24″ x 90″ (W x D x H)
22″ x 18″ x 35.4″ (L x D x H)
Acrylic Plexiglass Plastic Sheet 1/8″ 24″ X 24″ – Clear
$15.23 + $11.16 Shipping
Acrylic 1/8″ 24″ X 24″ – Clear
Custom cuts available.
Custom cuts available.
$25.68 + $10.30 Shipping
Dimensions: 24 in. W x 48 in. Thickness: 1/16″ (0.0060/1.5mm)
More sizes available
More sizes available
“This kit includes 3 sheets cut to 440mm (17.3228”) x 440mm and 2 sheets cut to 220mm (8.66142′) x 440mm. “
“This kit includes 3 sheets cut to 440mm (17.3228″) x 473mm (18.622″) and 2 sheets cut to 220mm (8.66142′) x 505mm (19.8819″). The 3rd sheet of 440mm x 473mm includes 5 laser cut holes 10mm round in the same location as in the instructions to save you the chance of cracking the acrylic with a drill bit. 3mm thickness”
- 3 Pieces of 440mm x 440mm x 3mm thick plexiglass
- 2 Pieces of 220mm x 440mm x 3mm thick plexiglass
- Laser cut
- 10 magnets included (20mm x 6mm x 2mm)
5 Pack (3mm) + 10 Magnets (20mm x 6mm x 2mm) for 3D Printer Enclosure | 3 Pieces of 440mm x 473mm (17.3″ x 18.6″) & 2 Pieces of 220mm x 505mm (8.65″ x 19.9″)
Alternative Filter Assemblies/ Ventilation Unit
by HooneyPaPa. Uploaded to Thingiverse on October 12, 2021
By DanielSchweinert. Uploaded to Thingiverse on January 13, 2020
By sn4k3. Uploaded to Thingiverse on August 12, 2019.
By DeepSilence. Uploaded to Instructables on April 18, 2018.
By jmillerfo. Uploaded to Thingiverse on June 21, 2017.
By ragingrivers. Uploaded to Thingiverse on August 8, 2016.
3 Phase Air Purification: Inlet HEPA/Activated Carbon filtration for first pass removal of hazardous chemical compounds, and additional outlet Activated Carbon filtration*
*White paper – Assessment of Makergadgets’ Adelina 3D Printer Enclosure and 3 Phase Air Purification System in Mitigating High Contamination Fumes and Particles Emitted During 3D Printing
“This is a printable kit for your 3D printer enclosure including all non printable parts for alveoONE or alveoONE-R + both STL files. Print and assemble your printerbox yourself: free stand or wall mounted type in your favorites colors and maetrials.”
Various DIY Enclosures
by Giuseppe Portelli. Posted January 9, 2021. A made from scratch enclosure using MDF board and plexiglass.
By Schweinert. Posted November 7, 2018. A metal, wall mountable cabinet is used as an enclosure.
By Dan Bemowski. Uploaded to Dan’s Bits Bytes and Ramblings on August 5, 2018. The electronics were moved into a box separate from the printer.
By Silverlane. Uploaded to Thingiverse on June 26, 2018. This enclosure was made with a Lack table from Ikea. It has a front and right side door.
By Raging Computer. Blog post dated July 3, 2017. Raging Computer wrote that he made his enclosure to control noise.
Blog post dated April 19, 2018.
This two door enclosure is two years old. I am pleased with practically all of the design decisions I made. One error I made was in designing the filter assembly. It was not until my recent round of research that I learned the carbon filter should be changed often and easily accessible compartments are needed for both filters.
I did not know until recently that the HEPA filter I used was unacceptable. Not because it was not a good HEPA filter, but because I ripped it while trying to remove it from its case, where it should have remained. I know now that the filter must remain potted in its case to be effective.
One other change needed for the enclosure was insulation around the doors. I will be using rubber window seal to correct this.
Enclosure Update, July 2020
For this update, I sealed opening edges with window seal; changed the door handle; removed the hooks and latches; added magnetic door closure; and created another filter assembly. The filter assembly is explained in another post. I will be making another filter assembly sometime in the future.
The magnetic closure was made using angle irons and repurposed magnets from alarms I purchased from the dollar store. Here is a link to the print file for the magnet holder. I stopped the print to place the magnet before reaching the top cover. The magnet was not a tight fit in the cavity, but it holds well for door closure.