45 degree PVC angle fittings: which?

Posted by Joe Balint at 1/14/2001 1:05 AM EST

Engineer on team #537, Domo ARIGATO, from Sussex Hamilton HS and GE Medical Systems.

For those who have manufactured the goals:
I found two versions of the 45 degree PVC angle
fittings. One is smooth (Ace HW part #43255) the other
has a neck at it’s center (Ace HW part #43131). Can
anyone who examined this feature of the goals at
Kick-off answer either of the following:

  1. Which 45 degree PVC angle fittings are the correct
    ones; ACE HW #43255 smooth or #43131 necked?
  2. What is the distance from inside one bend to the
    inside of one of the next bends around the perimeter?
    Basically, what is the length of one of the PVC octogon
    sides?

WE have aproblem: It’s obvious that the large ball
(inflated to spec) sits much further down into our
team’s version of the goal then the large ball did at
the goals at the Kick-off.
Suprisingly enough, I can’t find this dimension
anywhere in the blueprint.

Any help would be appreciated. -Joe

Posted by Mike Gray at 1/14/2001 8:10 AM EST

Engineer on team HOT from Huron Valley Schools sponsored by GM Milford Proving Ground.

In Reply to: 45 degree PVC angle fittings: which?
Posted by Joe Balint on 1/14/2001 1:05 AM EST:

The photo I took of the goal shows a “smooth” fitting. I can send a gif or jpg if you like.

Schedule 40 fittings don’t have a neck, but drain PVC fittings do. Drain fittings also have a thin wall relative to schedule 40.

You will want schedule 40 fittings and pipe.

Posted by Michael Martus at 1/14/2001 1:02 PM EST

Coach on team #47, Chief Delphi, from Pontiac Central H.S. and Delphi Automotives Systems.

In Reply to: 45 degree PVC angle fittings: which?
Posted by Joe Balint on 1/14/2001 1:05 AM EST:

We have the same problem with the ball sitting down in the goal. What I question is how large was that ball at kick off. Was it inflated right as per the rules? I do not think so.

As for the fittings you want the smooth ones. Schedule 40 pipes come in two flavors, drain and supply. The key point is the schedule 40 style. Drain are white, supply are tan or off white.

Make sure your cuts are true. Use a table saw to get the connectors accurate. File the edges to remove burrs. Assemble the T’S first making sure you bottom out the connectors in the fittings - this is important for if you do not insert all the way you will be longer and have a larger opening when done.