October 12, 2025
Description
These connectors are replacement joints for classic aluminium greenhouses, typically from the 1980s.
They are designed to join aluminium tubes used in the frame structure and come in both 3-way and 4-way versions.
Perfect for repairing or extending older greenhouse frames where the original plastic fittings have cracked or become brittle over time.
When printing, a brim is recommended for better bed adhesion, and supports should be set to “from build plate only.”
It’s also recommended to pre-drill the holes where the screws will be inserted.
The exact screw positions vary depending on the greenhouse model and tube profile, which is why no pre-drilled holes are included in the model.
License:
Creative Commons — Attribution