Hand Tools Archive

Subject:
Re: Center of effort?
Response To:
Re: Center of effort? ()

TomD
Based on other fields, and this may be what you are saying, center of effort would be the point upon which the vector was applied. Not some variability in centre of gravity.

In the case I am suggesting, CG of japanese plane would be as you describe, and the weighted average position of the blade and the dai CG. You can apply the force to the plane below the center, when you grab the dai so they would be similar. On a Stanley, the center of gravity is low, the center of effort is higher up on the handle.

The only effort I can see that goes into a plane is the hand force, and in some cases, gravitational forces. There are also various drag forces, but they are not efforts.

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