Fermenter cabinet

Enclosure of the fermenter

Domingo Fermenter
Fermenter cabinet

Cabinet design

The fermenter has been designed and manufactured using digital fabrication techniques which are CNC milling, laser cutting and 3D printing. The design is harmonious, unique, compact and clear with particular attention paid to the choice of materials for a sustainable product. The external enclosure is made of natural wood fibre panel dyed in the mass with organic colouring agent, very satisfying to mill with great finish and texture. The shelves and the inner technical panel are lasercut from stainless steel sheet for easy maintenance and durability. And fastening systems are complemented by 3D printed parts made of PLA, a compostable polymer obtained from corn starch.

List of materials

  • 8 mm Valchromat board (required cutting surface of 369 x 1125 mm)
  • 1 mm stainless steel sheet for the 4 shelves (required cutting surface of 230 x 255 mm)
  • 0.5 mm stainless steel sheet for the technical panel (required cutting surface of 125 x 275 mm)
  • 1.75 mm PLA 3D printing filament such as Prusament (required amount of 6,5m or 19g)
  • 21 x M3 nuts
  • 6 x M3 Allen bolts of 40 mm
  • 4 x M3 Allen bolts of 20 mm
  • 3 x M3 Allen bolts of 15 mm
  • 8 x M3 Allen bolts of 10 mm
  • 4 x Neodymium magnet circle of 8x5 mm

CNC design

This design has been made to be CNC-milled on an 8mm thick board. We use Valchromat but it can be any 8mm thick plywood or composite board. The fabricated pieces are flat-packable and slot together without the need for screws or glues. The file has a tolerance of 0.1 mm. There are no T-bones / Dog bones yet, they are to be generated in the CAM, depending on the diameter of the bit you use. We recommand to use a 4mm flat mill for a better render.

An exploded view of the CNC-milled parts of the fermenter
Preview of the cut file. The bounding box has a size of 369 mm x 1125 mm
Here are the CNC milled parts when assembled. The whole is 355mm high, 169mm wide and 169mm deep.
With the door open, the maximum height is 545 mm

Lasercut design

The technical panel and the shelves are made of 0.5mm and 1mm stainless steel respectively. However, they can be cut in any other material of your preference. The only constraint is that the technical panel has been designed to be folded with the cut lines drawn.

Preview of the cut file of the technical panel. The bounding box has a size of 293 mm x 143 mm
Preview of the cut file of the shelves. The bounding box has a size of 323 mm x 276,5 mm
A exploted view of the lasercut parts

3D print design

These small parts have been designed to complement the fixing system of the different electronic elements, technical panels and door. They are :

  • 17 x M3 nut inserts to be placed in the round pockets of the CNC-milled parts “Back” and “Top”
  • 16 x M3 spacers (2x 30mm; 4x 15mm; 3x 10mm; 7x 5mm) to mount the various electronic components and the technical panel
  • 4x straps to hold the heating pad
  • 1x holder to hang the power
  • 1x holder to hang the sensor
  • 2x holders to insert the magnets for the door opening system
  • 8x dowels to support the four shelves
Preview of all the 3D printed parts. Note that you can generate a brim only for specific parts, here the spacers.

Get the files

→ Download all the fabrication files via our Github repository


→ Get the full instructions on how to put it all together on the next page