(Parametric) Mason Jar Mycology Lid
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A parametric mason jar lid with three customizable holes for self-healing injection ports or air exchange.
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Model information
- Source
- Printables
- Category
- Kitchen
- License
- Creative Commons — Public Domain
If you plan to use this inside a pressure cooker, you MUST use a plastic that is heat resistant up to 121 °C (250 °F). I have had great success with High Temperature Polyamide (PAHT) that is carbon fiber reinforced. After 2 hours in the pressure cooker at 15psi these lids come out exactly how then went it.
You may be able to get away with using non-CF reinforced PAHT (which is heat resistant up to 120 °C), but I have bothered trying this specific filament. Acrylonitrile Butadiene Styrene (ABS) and Polypropylene (PP) are both heat resistant up to 100 °C and may be useful in some circumstances, but should not be used in a pressure cooker. Other plastics such as PLA and PETG are fine if you just want to have a lid with three holes in it, but should not be used if you plan to apply heat.
History:
- 2023-06-05: Initial upload.
- 2023-06-10: Added an option for triangular hole placement. Added additional model to work with non-threaded jars. Included file to print lid for 24oz Prego Jars (flanged).