MFNano² Voron 0 Carbon Air Filter (RC)

Thank you for all kind words, support and ideas. RC version is now available with slightly changed BOM (less parts and they are even more common) and building instructions.

IMPORTANT – READ FIRST!

This is a model of a recirculating air carbon filter. Please make sure you are sourcing the correct carbon pellets for it. Team behind Nevermore filters did a great job explaining exactly why you need to pay attention to this. Please use their guide to source proper carbon pellets.
You want to use 4mm acid-free carbon pellets, if you plan to use any other brand than Nevermore please make sure that your carbon of choice does not cause rusting. This video describes a great experiment to make sure your pellets won't hurt your machine. 

ALSO IMPORTANT

This model is a first and foremost work of a designer, not a work of an engineer. I did my best to retain all functional elements of MFNano, the best air filtering solution for Voron 0 family of printers. If there anything good in this build other than looks it is an accomplishment of Maple Leaf Makers, please check them out if somehow you haven't yet.

BOM

• 5015 blower fan
  You need to modify the fan as described in the original assembly. Please refer to the first 8 seconds of this video: https://github.com/MapleLeafMakers/MFNano?tab=readme-ov-file#assembly
  If possible, get a fan with a longer cable, stock length won't be enough to reach electronics area (or make an extention cable)
• 1x M3x6 BHCS
• 1x M3 nut
• 3x M2x10 Self-tapping screws
• 4x 6x3mm Neodymium Magnets

Print Settings

Use default Voron print settings (0.4/0.2/4 walls/5 top/5 bottom/etc). Do not add supports, as they are built-in into the models where needed. Recommended material: ABS or ASA. All models are positioned correctly in the STLs.

Assembly

1. Prepare the blower as described and remove wires from the JST connector.
2. Insert the blower into plenum. It should be tight but enough to push it all the way. If installed correctly it should sit flush with the top edge or a little deeper.
3. Install two magnets into hexagonal holes by pressing them into the part. You want the same polarity to face the same direction to make it easier for you down the road.
4. Feed the wire through the groove and connect plenum and mount together.
5. Screw in three M2x10s. Do not over tighten them! You just want two pieces to be attached to each other without any gaps.
6. Carefully remove supports from the cartridge with flush cutters (yellow bits):
   
7. Install the other two magnets into the cartridge. This might be tricky – I used a combination of calibration cube, screw clamp, flat wrench and workbench to get the job done.
8. Fill cartridge with pellets and slide in the lid.
9. Move the bed all the way up
10. Remove the door and the side (z endstop side) panel from your V0.
11. Feed the M3 nut into the slot:
    
    At this point you want to put V0 on the side to let gravity help you with the nut.
12. Screw in the mount.
13. Feed the wire into the same slot but into the bottom area of the V0:
    
14. Insert the mount with the attached plenum into place while pulling the wire from the bottom. The indentation on the right side of the plenum/mount should match the left screw of the Z endstop mount.
15. Carefully bend the flaps on the contacts back and reattach the JST connector.
16. Put the cartridge on top of the plenum/mount.
17. After you complete the assembly slide the bed up and down all the way to make sure it is not touching the filter.

Please let me know if I can make this description or model any better in the comments. Thank you and happy printing!