DIY Digital Shaft/Arrow Spine Meter

[Rob DiStefano]

This thread will be a pictorial of sorts on building a device that will be extremely beneficial for wood arrow shooters/builders, and the resulting meter will work just as well for carbon, aluminum, and glass shafts/arrows, too.

[attachment=1,msg3042516]

More to come ........

[Maclean]

I've been waiting to see this one Rob. Spine meter 2.0, DiStefano style.

[frassettor]

Looking forward to it Rob! Have you ever done a tutorial on making your wood arrows? I can't remember

[Rob DiStefano]

Looking forward to it Rob! Have you ever done a tutorial on making your wood arrows? I can't remember

How I build woodies ...

https://www.tradgang.com/tgsmf/index.php?topic=175337.msg2957318#msg2957318

[frassettor]

Looking forward to it Rob! Have you ever done a tutorial on making your wood arrows? I can't remember

How I build woodies ...

Thanks . You're a real craftsman . I have only used the classic  glue on nocks .

https://www.tradgang.com/tgsmf/index.php?topic=175337.msg2957318#msg2957318

[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.
[attachment=4,msg3042717]

A closer look at the inside of the indicator and its unhooked plunger spring.
[attachment=1,msg3042717]

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.
[attachment=2,msg3042717]

The 2lb weight is hung close to the plunger and a reading is take of the shaft's static spine.
[attachment=3,msg3042717]

[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. 

[Rob DiStefano]

Spine Meter Chart

[Brianlocal3]

My gauge should be delivered today, I'm going to try whipping one of these up as I found about four dozen wood arrows shoved in a box in my basement I forgot I had and I don't know what any of the spines are,

I will let you know how it worked out for me

[Skates 2]