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Date: 10-25-2016
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Number of Hours: 3.00
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Manual Reference:
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Brief Description: Again with the strut
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Remade the 3/4" x .035" struts today by drilling the holes at either end of the slot and then drilling 5 x 1/8" ones as guides between the 2. Went back and drilled all out to 3/16".
Found my old Dremel copy tool and carefully ground away until I had a nice smooth slot. (Those are not scratches on the tube but white marker)
Slid the lower 5/8" x .049" strut inside and the welded retaining washer over the top and then a bolt through all 3. The McMaster-Carr 1000lb/in spring # 9295K84 pushes up against the top washer and is 3-1/2" long.
I put the spring in a vise to see how far it would compress. 1-3/8"
In order to preload the spring I marked 2 white lines. One at its decompressed state as in pic 2 and the other 3/8" up allowing the full 1" movement in the slot. I drilled through the lower washer where it will be finally welded. Not wanting to do that at this stage as I will wait until I'm ready to have everything painted.
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Grind
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Decompressed
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Preload bottom mark
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