Aquarium Filter / Media Reactor v2
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3D model description
DIY aquarium filter / media reactor / bioreactor
- 3D-printable
- no supports
- watertight without caulking
- minimal assembly
- disassembles for cleaning
PARTS
6 - ABS (or PLA) 3D-printed pieces
1 - 3" clear polycarbonate tube
4 - M3 x 20mm socket-head screws
4 - M3 nuts
1 - 3" soft rubber o-ring
6-12" of 0.5" ABS tube
0.5" soft silicone tubing
snap-grip nylon hose clamps
SUPPLIES
- acrylic cement to bond ABS and polycarbonate parts
- clear epoxy to bond PLA and polycarbonate parts
- applicator syringe
ASSEMBLY SUGGESTIONS
ABS pipe:
- cut the top of pipe so that 1cm extends past the top of the upper flange
- cut the bottom of the pipe so there's about a 5mm gap between the pipe and lower flange
- bevel the cut pipe ends if flared
- use acrylic cement to bond the bottom screen to the ABS drop tube at the desired height
cleanup:
- where the ABS drop pipe enters the hose barb -- de-bur the inner hole and remove stray filaments from the overhang
- de-bur and lightly sand the top bevel inside the upper flange
tube-body assembly:
- fill a syringe with acrylic cement
- apply a small amount of acrylic cement in the base and upper flange channels
- twist the flanges onto the polycarbonate tube for an even coat of cement
- align the upper and lower flanges
hardware:
- press in magnets with a drop of CA glue
- press in M3 nuts
pre- and post-reactor mechanical filters:
- cut 20mm thick by 3-inch wide discs of filter material to fill the upper and lower filter baskets
- cut an x-shaped hole in the middle of each filter to pass the 0.5" inch drop tube
- push the lower filter into place with a rod
sealing:
- stretch the o-ring onto the convex cirfumference of the o-ring centralizer screen
- use a couple drops of CA glue between the o-ring and centralizer
- insert and tighten the M2 screws until just snug, or until the upper flange begins to bend at the corners. This will compress the o-ring between the two plates.
troubleshooting:
- if you have leaks where the polycarbonate tube meets a flange, apply a small bead of cement at the seam with a syringe
- if you have leaks at the top seal -- check that the seal is clean and that the drop tube isn't too long to allow the seal to compress
3D printing settings
- 0.2mm layer height
- 40% or higher infill
- 4-6 walls
- There is a built-in 0.2mm layer that needs to be removed from the underside of the inlet pipe overhang
- 3D file format: STL
- Publication date: 2020/01/26 at 22:30
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