Stackable Round Tray for Vacuum Chamber/Pressure Pot

If you have ever used a Pressure Pot or Vacuum Chamber you may have realized that in many cases the internal space could be used much more efficiently. I designed these stacking trays and spacers to solve that problem.

They are designed to stack within a standard 9" Pressure Pot (like the Porter Cable one I own) or Vacuum Chamber.  The stacking pillars have handles on them to allow easy removal from the chamber. The pillars have a 9mm hole for M9 rods (not included). You can glue the rods to one tray and use that as the bottom tray to allow inserting and removing an entire stack at once. I found this very handy to prevent resin spillage when inserting the deeper trays. Finally, the trays are designed to be watertight allowing you to create silicone molds directly within then turn right around and cast with them. NOTE: If your print is not watertight try increasing the infill percentage.

There are two types:
- Casting Trays - 3 Sizes 
   - 20mm (37mm Stacked/41mm Overall)
   - 40mm (57mm/61mm)
   - 60mm (77mm/81mm)
- Spacer - 2 Sizes
   - 20mm (37mm Stacked/41mm Overall)
   - 40mm (57mm/61mm)

NOTE: These Trays are designed to be printed in either PLA/PETG or some higher hardness TPU filaments (i.e. not NinjaFlex).
Settings:
- 3 Walls
- 4 Top/Bottom Layers
- At least 30% Infill but higher may be necessary to ensure watertightness