Choking point location finding and measuring method.
For many people that proved to be a tricky business . So I’ve made a short tutorial with the method I use to find the choking point location on a blank (or fishing rod) .
Because we are talking about measuring you’re supposed to have one fishing rod and the reel he will be equipped with. When I say “fishing rod†I’m thinking at least at a blank with the handle part and reel seat mounted (preferably without the fore grip mounted ) .
there is the theory:
when a stick touches the table in only one point , there can be an angle , but when the stick touches the table in 2 ore more points there can be no angle . An angle made by the stick with the table means a deviation of the stick trajectory and for our measurement that means a bad result.
In our case instead of a stick will be the reel axle which should make no angle with the table edge . In fact it is best if the axle touches the table edge with all his surface .
In the picture below you can see the correct contact between the reel axle and a table edge.
[
www.rodbuilding.org]
In the 2 pictures below you can see how an incorrect contact between the reel axle and a table edge should look like.
[
www.rodbuilding.org]
[
www.rodbuilding.org]
So if I press the reel axle firmly against the table edge (with the reel mounted on the rod ) then the reel will pull the blank to the intersection point (choking point).
In the picture you can see the choking point:
[
www.rodbuilding.org]
In that moment you will mark the choking point on the blank and the reel axle tip projection on the blank (using a set square tool). After that you will simply measure the distance between the two marked points.
[
www.rodbuilding.org]
It is best that 2 people will do this measurement together because, while one is keeping the reel axle in firm contact with the table edge (together with all the reel-rod assemble) the other one can position himself in such way then he can view the intersection point perpendicularly from above to be able to make a correct marking. He will then also be marking the reel axle tip projection on the blank (which is a perpendicular line drawn from reel axel tip to the fishing rod –that line length is known as the “spool height†in GPS -).
If you are alone (without anybody to help you) and you have a 7 feet or shorter rod there is a trick you can use. It was my friend and partner rod builder genial solution to my problem of measuring when alone. You can do the measurement on a door’s edge. It will however give you an error in the range of an inch or less because you cannot position yourself in such way that your eyes to be at the same level with the intersection point (so you can eyeball it in a perpendicularly manner). Since we are not building airplanes that kind of an error I consider acceptable (especially if you’re in a hurry).
What you need to do is position the reel axle in a firm contact with the doors edge. Then with one hand you will keep the reel-rod assemble in place only by pressing the reel axle against the door edge with your thumb. With your other hand you can grab the rod form the intersection (choking) point and then mark it . The reel axle tip projection on the rod you can do it afterwards on the table’s edge as I’ve explained before . In the end you just measure the distance between the 2 marked points on the rod. It’s that simple .
[
www.rodbuilding.org]
[
www.rodbuilding.org]
[
www.rodbuilding.org]
kingofbeasts custom rods
Edited 2 time(s). Last edit at 06/07/2012 07:32AM by carol staiculescu.
