HEPA Filter Assmbly for enclosed 3D Printer

thingiverse

HEPA assembly for printers that are are used in an enclosure. Helps remove any odors while printing. Captures up to 95% of particles, 2 micros and larger using the filter I selected. Print Settings Printer: Geeetech i3 Pro X Rafts: No Supports: No Resolution: 0.2mm Infill: 20% Post-Printing Items needed: 1 ea - Honeywell Air Purifier Filters Model HRF-C2 (2 per box), will only use one, save other for replacing after 90 days. 2 ea – 4” 12VDC fans, get the quiet fans. I used NMB model 4710NL-04W-829 2 ea – 4” fan grills 2 ea - Printed PLA Frame interlocking pieces 1 ea – 1’ 10 0r 12 gauge red wire. 1 ea - 1’ 10 0r 12 gauge black wire. 8 ea – screws 40mm in length 4 mm dia. Electrical tape 24” of mounting tape (3M) Printed out frame (you may have to widen the screw holes). Connected both sides of the frame together. On one side of the frame, I mounted both fans and grills with the screws, make sure the wires meet in the center. On the other side I used double sided mounting tape and taped the fan onto the frame, allows for easy removal when replacing the filter. Connected the red wires to one 12 “ red wire, solder then and then cover with electrical tape. Repeated step 5 using the Black wires. Connected the wires to the 12V line and GRN line at the power supply. This way when I turn on the printer, the fans automatically turn on. How I Designed This I needed a frame to mount the fans and HEPA filter. You may have to modify the screw holes to fit your fan. Since this is a flat design, you can use 0.3mm or 0.4mm nozzle. I used PLA because I did not see this frame requiring at stiffness of ABS.