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Originally Posted by Doug Traster
That which is called "1-1/2" Schedule 40 PVC pipe" actually has an ID of 1.610" and an OD 1.900" (according to McMaster-Carr). The holes that are specified in the drawing are 1-7/8" which is 1.875" in decimal. This means that if everything were perfect, the PVC would not go into the holes at all. On the drawing for the mobile goal ( http://www2.usfirst.org/2004comp/200...veableGoal.pdf ) the words "Dress to fit" refer to the holes in the wood. I think they intend that you ream the wood out until the too large PVC fits OK. I don't know why you are experiencing a 10 degree slant or even a little "wobble". Those poles ought to be skin tight. Confession: We have not actually built our goals yet (today, I hope), so maybe I'm missing something. |
After much testing, we have found that the poles won't bend or move ON THEIR OWN. But balls in the goals, the big ball, and robots can somewhat bend the PVC. Not much, but a little.
Also, I would rebuild your goals. You shouldn't have that much lean to them.