If you guys look really, really closely you can see the tubes are almost--almost--a perfect fit. It is very hard to see in a photo. The camera makes it look like there is a bit of a gap in the fitment...
BUT...
We were very, very careful to draw and program the tubes so the laser would cut the intersecting tube normal to the surface (of that same tube). If you cut one tube absolutely tangent to another tube the edge will feather out, thinning to nothing. That "nothing" is actually so thin (like thinner than paper) when you weld the tubes together the steel will literally boil, burn, and contaminate the weld.
I'll try to get a close up so you can see what I am talking about. It's a bit hard to explain.
David
