Use the gray electrical pvc pipe, same OD size, and its UV resistant, and about 40% cheaper.
Best Plastics, Composites, Rubber for structural antenna parts
Just a warning note about using ABS for structural parts that I've mentioned many times before - hopefully what you're planning to use is the thick walled stuff that has little or no flex. If you go to Rona or Lowe's or Home Depot and shake a 10 foot ABS pipe like a sword it flexes a lot. It seems to be rigid, but its not. If you shake a length of PVC like that it will seem like a wet noodle, so avoid using PVC for structural use either, except when recommended in build plans.
From experience I'm clarifying that ABS should never be used as a pole or mast, and it should be carefully considered if you're thinking of using it as a horizontal boom of any length more than a meter or a few feet.
It seems to be rigid, but its not. If you shake a length of PVC like that it will seem like a wet noodle, so avoid using PVC for structural use either, except when recommended in build plans.From experience I'm clarifying that ABS should never be used as a pole or mast, and it should be carefully considered if you're thinking of using it as a horizontal boom of any length more than a meter or a few feet.
101 - 120 of 213 Posts
Thats for the polyurethane glue. Polyurethane construction adhesive is different, looking more like Liquid Nails in color and consistancy and comes in caulking type tubes.
It doesnt last as long outside as LEXAN (polycarbonite) does, hence the price difference.
When I first built my greenhouse, I used Tuftex UltraVinyl sheets from Lowes on the roof. (Vinyl Grow Clear) http://www.lowesforpros.com/sites/default/files/Tuftex_Brochure.pdf
They said it would last 7 years, and darn it, thats all it did last until it got yellowed and brittle, heh.
I replaced them with the Tuftex PolyCarb sheets, which have a lifetime limited warranty.
When new, the blueish tint of the Vinyl Grow Clear sheets was better for the plants than the pure clear color of the PolyCarb sheets.
Plastic Mesh Fencing - 12mm on the squares.
O.K. so maybe the antenna put together with this plastic stuff will "catch the drift" of the wind and get blown down ... haa haa ...
But anyway, I went back to the ravine with a pocket knife and cut a small square sample of it.
It must be a metric size, cause it has a 12 mm pitch on the squares.
Must come in approx 3 or 4 ft wide rolls - maybe 1 metre wide then?
Picture: Plastic Mesh fencing.
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Pieces might work as spacers - with elements going through the squares.
Strips of it of a certain width, pulled on a frame, might work to support antenna elements.
Yes it will have some wind load cause it's a fairly tight mesh.
Parts of it could be strategically cut out - where no support is needed - to reduce wind load.
This stuff might be versatile enough to be used somehow.
Anyway - wanted to share that.
Need to source a supplier and approx price.
O.K. so maybe the antenna put together with this plastic stuff will "catch the drift" of the wind and get blown down ... haa haa ...
But anyway, I went back to the ravine with a pocket knife and cut a small square sample of it.
It must be a metric size, cause it has a 12 mm pitch on the squares.
Must come in approx 3 or 4 ft wide rolls - maybe 1 metre wide then?
Picture: Plastic Mesh fencing.
Pieces might work as spacers - with elements going through the squares.
Strips of it of a certain width, pulled on a frame, might work to support antenna elements.
Yes it will have some wind load cause it's a fairly tight mesh.
Parts of it could be strategically cut out - where no support is needed - to reduce wind load.
This stuff might be versatile enough to be used somehow.
Anyway - wanted to share that.
Need to source a supplier and approx price.
101 - 120 of 213 Posts
