03-07-2018, 07:46 PM
Mark,
I can clearly se many different functions that a oval grinding wheel can give. One of them are convex edges with wanted degrees on the cutting edge, easy to do and easy to maintain.
As I see it, the oval grinding wheel with diamond surface would be nice becose it so not change its diameter. Think a fixed guide rod with a knife fasten on its end. When the grinding wheel turns the knife will then move a little up and down in height (gives the convex edge becouse the distance on the oval wheel from the center to its grinding surface change). Depending on where on the oval wheel i have the edge decide how many degrees the edge will get. It is simple to make a protractor for this.
If I was a producer of a watercoled sharpening tool based on a round turning wheel - I would be interested of a oval grinding wheel as extra equipment - but that is me... I like presision and quality edges.
The important thing is that a oval grinding wheel is a old innovation, no patent are involved = it is an idéa anyone can use and develop and combine with todays tecnuiqe and knowledge. For example, I think it is possible to construct a grinding machine knife producers can use to get identical convex edges on complete serias of knifes. (Today all knifes are produced with flat edges - ans they are later, by hand, made convex. This means that there is nit Two knifes that have the same convex sphere or the same degrees on their cutting edges). I am not updated what happen innthe production chain during the last years - but I so not think that there have been any change about this.
My point is that our forefathers, that use knifes and other edges rools a lot more then we do today and use a softer steel, they made a lot of innovations that we can learn from today - and develop with tidays knowledge and tecnuiqe.
Thoma
I can clearly se many different functions that a oval grinding wheel can give. One of them are convex edges with wanted degrees on the cutting edge, easy to do and easy to maintain.
As I see it, the oval grinding wheel with diamond surface would be nice becose it so not change its diameter. Think a fixed guide rod with a knife fasten on its end. When the grinding wheel turns the knife will then move a little up and down in height (gives the convex edge becouse the distance on the oval wheel from the center to its grinding surface change). Depending on where on the oval wheel i have the edge decide how many degrees the edge will get. It is simple to make a protractor for this.
If I was a producer of a watercoled sharpening tool based on a round turning wheel - I would be interested of a oval grinding wheel as extra equipment - but that is me... I like presision and quality edges.
The important thing is that a oval grinding wheel is a old innovation, no patent are involved = it is an idéa anyone can use and develop and combine with todays tecnuiqe and knowledge. For example, I think it is possible to construct a grinding machine knife producers can use to get identical convex edges on complete serias of knifes. (Today all knifes are produced with flat edges - ans they are later, by hand, made convex. This means that there is nit Two knifes that have the same convex sphere or the same degrees on their cutting edges). I am not updated what happen innthe production chain during the last years - but I so not think that there have been any change about this.
My point is that our forefathers, that use knifes and other edges rools a lot more then we do today and use a softer steel, they made a lot of innovations that we can learn from today - and develop with tidays knowledge and tecnuiqe.
Thoma