Topic Archives > How To - Resources
DIY Digital Shaft/Arrow Spine Meter
Rob DiStefano:
Getting it together.
A scrap pine board that's 3/4" x 5" x 30" ($0), the digital indicator ($23), a pair of hooks ($3), the accessory back plate that comes with the indicator, a 10-24 1/4"x3" bolt with washers and nut for attaching the indicator ($2), a plastic vitamin pill container that's filled with shotugn shot that has a total weight of 2lbs ($0). Just need to add a pair of wood braces that will hold the indicator, more on that later. That big ol' knot in the pine board has been stabilized with CYA glue. ;)
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Rob DiStefano:
Besides the 2lb weight, the essence of the spine meter itself - 3/4" pine board, a pair of wood blocks glued on to hold the indicator, the indicator opened up to show it's plunger spring is unhooked and its tip unscrewed, a 10-24 1/4" x 3" bolt with nut and washers to attach the indicator, the shaft/arrow holding hooks, a pair of 2" screws to hang the meter.
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A closer look at the inside of the indicator and its unhooked plunger spring.
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Components attached to the board. The hooks are screwed in or out in order to center the indicator's plunger on the center of the shaft/arrow - in this case an 11/32" x 32" Douglas fir shaft. The meter is turned on and set to read in decimal inches.
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The 2lb weight is hung close to the plunger and a reading is take of the shaft's static spine.
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trad_bowhunter1965:
Thank you Rob,
Rob DiStefano:
I don't need two, so it's getting stained and clear coated, then going up on the TG Classifieds for cheap. :wavey:
Rob DiStefano:
Spine Meter Chart
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