Originally Posted by
staehpj1
. Looking at the pictures it looks like you have a joint in the tube above the dropout. Is there anything to prevent it from bouncing and coming apart on a rough road?
+1. Many designs will work under ideal conditions. It's the unexpected that will "git ya". Anticipate the unexpected - rough roads, gravel roads, no roads, severe weather and wipping winds, heavier loads than planned, bike falling over torquing the rack to one side, etc. Consider the impact of hours of vibration or lateral sway on the rack. Many stresses are upwards or sideways, not just downwards.
And be be sure the design delivers BOTH a reliable rack and reliable tent poles. Consider the loads and stresses on a tent in a storm or when your stumble and fall onto the tent at a campground. I assume you know that all alloy tent poles are not the same. Use the BEST pole stock you can find and the best splice material/design if you move ahead with this idea.