Joining perpendicular tubing

[NWChen]

Originally Posted by notmattlythgoe

I think he's talking about the ladder rails going across the frame, not the standoffs on the sides.

Yup, thanks though Mark.

Originally Posted by Joe G.

If I recall correctly, 610 uses a kind of unusual method of doing this. They use three pressed roll pins in the plate to capture the tube geometrically in the corners, and in the fourth corner, run a length of allthread to pull the whole thing together while making it removable.

Oh, I see that in their design tutorials. Is there another way of doing this kind of attachment?