Fabricating GDC Trellis Posts for Muscadines
After scouring the countryside looking for something affordable and suitably sturdy enough for Geneva Double Curtain trellis posts for my muscadine vineyard, I found a collection of 2 inch and one inch galvanized iron pipe at a local scrap yard. I sorted through it and bought it from them. They sold it for twice what they pay for it, so $.12 a pound scrap costs $.24 a pound.
I cut the 2 inch pieces into 9 to 11 foot sections using a band saw. If I had a 23 foot piece, it became two 9 foot pieces and a 4 foot piece, for instance. Some of them were threaded and I was able to screw some stubs together. I cut the 1 inch pipe into 4 foot pieces. Then I took a cutting torch and coped out a semicircle in the end of the 2 inch posts to fit the 1 inch cross bars into as illustrated in the picture. Using a protractor and a square to make a right angle, I welded the cross bars into the C shaped cutouts as illustrated. The 2 inch post standing upside down on top of the cross bar is held in a vise (not pictured.) Then I drilled holes a half inch from the ends of the cross bars for the trellis wires to run through. Later, I got access to a plasma cutter and instead of a C shaped cut, I moved down the post a couple of inches and cut a circle out of opposite sides of the upright post for the crossbars.
The posts weigh about 60 pounds more or less, so I have about $15 in each post. This is thick walled pipe, so it will be there long after I'm gone.
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