IMO:
Purchase 2 inch schedule 40 galvanized steel pipe. This usually comes in 20 foot lengths and can be delivered from a source near you. If you need to pick it up, bring with you a portable band saw to cut it. Cut each post about 1 foot longer than your anticipated height for the front row and back rows of your array. Remember to add in the feet to be placed below grade. So if your back row will be 6 feet above ground level and you will sink the post 36 inches into the ground, cut the post 10-11 feet in length. Wrap the post that will be in contact with the concrete with 10 ml pvc tape. Drill the holes and insert a 12 inch sola tube. Use a U bolt to clamp an 8 inch piece of strut to the post 6-10 inches from the bottom of the post. This will prevent the post from ever torquing and loosening/turning in the future. Pour the 4 corner posts of the array and plumb each post. Next day, attach a string to all 4 corner posts outlining a box. Mark and set all of the posts in the rows between the four corner posts. Use the string to make certain that the interior posts are in row alignment with the corners, set them vertical and just touching the string.
Now, day three, all the posts should be set and in alignment. Measure the height needed for the lowest row and mark on the corner posts and the height needed for the back row, mark on the corners. The different heights from front to back will be your array angle. Once the ends of the array have the marks front to back providing the angle, run a string at the mark height across the front row and mark all of the posts in between the corners. do this for the back row in between posts too. Now all posts in a row should have a mark for their final height and the front row posts should be shorter than the back row.
Use the portable band saw to cut off the posts to correct length.
Now insert a Hollaender tee onto the interior posts and the proper Hollaender end post holder to the corner posts. Thread your 2 inch galvanized pipe through the tees and corners to form the cross rails and tighten all down. If the array is longer than 20 feet in width, then use a Hollaender connector to butt two pipe ends together. Again use the saw where needed to make the lengths correct.
Now all you need to do is lay your Superstrut across the row pipe and attach with a Ubolt. Using the dimensions of your panels, the Superstructs will be parallel, 2 for each column of panels. Say the panels will need the struts 20 inches apart, then cut a 2 x 4 to 20 inches, 2 pieces. Set the struts with the 2x4's inbetween at top and bottom of the column of panels. This will quickly parallel the struts on the rails. Tighten them down, check your fit on the panels and move onto the next column, repeating the process. This goes very quickly. then fasten your panels to the strut.
Voila! Wire it all up. Be careful. make your grounding correct as per this forum or your plans.
Purchase 2 inch schedule 40 galvanized steel pipe. This usually comes in 20 foot lengths and can be delivered from a source near you. If you need to pick it up, bring with you a portable band saw to cut it. Cut each post about 1 foot longer than your anticipated height for the front row and back rows of your array. Remember to add in the feet to be placed below grade. So if your back row will be 6 feet above ground level and you will sink the post 36 inches into the ground, cut the post 10-11 feet in length. Wrap the post that will be in contact with the concrete with 10 ml pvc tape. Drill the holes and insert a 12 inch sola tube. Use a U bolt to clamp an 8 inch piece of strut to the post 6-10 inches from the bottom of the post. This will prevent the post from ever torquing and loosening/turning in the future. Pour the 4 corner posts of the array and plumb each post. Next day, attach a string to all 4 corner posts outlining a box. Mark and set all of the posts in the rows between the four corner posts. Use the string to make certain that the interior posts are in row alignment with the corners, set them vertical and just touching the string.
Now, day three, all the posts should be set and in alignment. Measure the height needed for the lowest row and mark on the corner posts and the height needed for the back row, mark on the corners. The different heights from front to back will be your array angle. Once the ends of the array have the marks front to back providing the angle, run a string at the mark height across the front row and mark all of the posts in between the corners. do this for the back row in between posts too. Now all posts in a row should have a mark for their final height and the front row posts should be shorter than the back row.
Use the portable band saw to cut off the posts to correct length.
Now insert a Hollaender tee onto the interior posts and the proper Hollaender end post holder to the corner posts. Thread your 2 inch galvanized pipe through the tees and corners to form the cross rails and tighten all down. If the array is longer than 20 feet in width, then use a Hollaender connector to butt two pipe ends together. Again use the saw where needed to make the lengths correct.
Now all you need to do is lay your Superstrut across the row pipe and attach with a Ubolt. Using the dimensions of your panels, the Superstructs will be parallel, 2 for each column of panels. Say the panels will need the struts 20 inches apart, then cut a 2 x 4 to 20 inches, 2 pieces. Set the struts with the 2x4's inbetween at top and bottom of the column of panels. This will quickly parallel the struts on the rails. Tighten them down, check your fit on the panels and move onto the next column, repeating the process. This goes very quickly. then fasten your panels to the strut.
Voila! Wire it all up. Be careful. make your grounding correct as per this forum or your plans.
