Blind joints, how do they work?
Learn how to assemble your frame using Blind Joints
What is a Blind Joint?
A blind joint on an extrusion involves a through hole on the side of the extrusion. This hole will be used to tighten a bolt that will screw together with another piece of extrusion. This other piece most likely has a threaded hole on the end.
This setup secures two extrusions at a right angle without exposing any parts externally, providing a clean look and robust connection.
Enlarging images
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How do they work
Making sure the surface is Flush
Ensure the surfaces are perfectly aligned. This is crucial, especially when we're trying to get a square frame.
See the red arrows: one shows a cut surface, the other the extrusion's side. Place this on a flat surface and find the edge on the mating surfaces with your fingers to align them. Keep them aligned for the next step.
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