homemade chronograph for archery

[foamslayer20]

Does anybody have any plans or ideas to help me construct a chronograph that will be used for archery.

 

[shrtrnd]

For less than a hundred bucks, and the time involved, why don't you take a
look at the 'Chrony' line. They're made in Canada, but readily available in the States.
I use mine for bullets, but they make a line for pellets and paintballs, they've
probably got something for arrow. And mine works great.

 

[GreenGiant]

Might be able to use an Arduino and various other parts, but that would be tough, and probably not very accurate without spending a ton of money

 

[BobK]

Just curious, what is the function of "chronograph for archery?"

Bob

 

[GreenGiant]

Just curious, what is the function of "chronograph for archery?"

Bob

Measures the speed of the arrows by passing through (or past) 2 sensors at a set distance apart

sometimes used for testing bow strength/continuity, or resistance of arrows in the air as far as I understand

 

[BobK]

Cool. I guess we can now quantify "as fast as an arrow."

Bob

 

[foamslayer20]

thanks guys. i could buy one but would prefer to build one as a project with my son lol.

 

[shrtrnd]

Good luck, no William Tell stuff there.

 

[GreenGiant]

thanks guys. i could buy one but would prefer to build one as a project with my son lol.

In that case I would try using an Arduino with some form of light sensor that starts counting milliseconds between 2, then using a simple formula you can calculate speed in ft/sec and mph

To be honest Im not sure if the arduino will be fast/accurate enough at the speed of an arrow, so I would say try it out with something like hotwheels on a track or something, to see if it will even work with something small like that (easier to set up and adjust that way too)