Ok Here is first of all a picture of the jump this one is set at the highest legal height 44" (I made them work for both AMHA and AMHR by taking the specs from both rule books and combining them).
I used 1 1/4" PVC pipe that was 5' long, I used six poles for each jump. I used 2-1 1/4" elbow connectors for the ground pole (connecting the groundpole to the jump is optional but it does give the jump more stability. I cut each of the poles at 12" for the front of the ground piece that would attach to the elbow for the ground pole. The remaining 4' section of those poles goes to the opposite side of a T connector. 2-1 1/4" T's are needed for each jump to connect the ground poles and the standard (upright). Make sure when purchasing the pieces that the T and elbow pieces fit the pole on all directions, if you check only one side the other end may be a different size if not checked carefully! The upright was the most difficult because you have to take into account the difference between the actual height of the jump and the actual location of the hole for adjustment. For example, the hole may be at 41.5" but the actual height of the jump will be 44". What I did was put the standards into the T's so that they would be the actual height including the ground pieces. I then had to make the cups so that I would know how many inches to subtract from each height to make the hole height. This includes the height of the pole as well as how many inches to the cup from the hole. Here is a picture of the cups that I made from a 1 1/2" T connector that slides nicely over the poles:
I cut each one in two and figured where to drill the holes, be careful when drilling! the holes in the cup must match the ones on the uprights or else the bolt wont fit through to hold it in place. Here is the "bolt" I used, I dont remember what it is actually called but can be found at Menards or Lowes or any place like that:
The bolt was 5/16" in width and was 2 1/4" long if I remember correctly. I used a 3/8" drill bit for the holes so it was just the right size for the bolt to fit.
Here is a finished standard. As you can kind of see I lined the holes up on one side evenly and then put the cup over to drill through to the other side being careful to aim for the hole in the other side of the cup so I didnt drill a bunch of different holes and break it.
Hopefully this makes some sense and if not just tell me what needs more explaining and I will do my best
Here is another finished picture with it on a lower setting.
