| SOME GOODIES FOR THE PROMARK 2 | Home |
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STEEL TRIPOD AND FRIENDS Lots of round bars in square holes, because that was what the scrap bin contained. The mountain bike frame was stumbled upon on a site somewhere - discarded. Wheel is spanking new made-in-China. Despite that, a lot of thought and experimentation went into the ergonomics. This contraption will not tire any muscles due to uncomfortable grip. Colour is genuine John Deere Yellow.
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ON THE MOVE. That rod level (held to the rod by bicycle inner tubes) just below the receiver has to be watched more closely, in which case the antenna pole will be vertical. This photo was taken at 11 o' clock, tea - time in the colonies (union rules), hence the ready-for- action thermos on the Landy's wing.
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STEEL TRIPOD sans FRIENDS Leg uppers : 20mm square tubing, 900mm long. Leg lowers: 12mm square tubing, 900mm long. Set up like this it will stay upright in 20 knots.
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STEEL TRIPOD - THE HOLDING RING The ring is 3mm wall thickness pipe, 35mm diameter. Tapped 6mm spaced 120 degrees. The rod is 20mm steel conduit.
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That 25 year old AGA prism became oval after a fall from a water tower. The shiny bit is where the ovality was removed on a lathe. The yellow contraption is a piece of 25mm pipe which slips over the 20mm rod.
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Survey technology spanning a lifetime stuck onto the snout of the only pleistocene vehicle on the planet - British Leyland's Land Rover. It's a well known fact every member of their design department is a member in good standing of the Flat Earth Society.
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