Using Chas Cambel Flywheel System For 15 Horsepower

[Abt]

Hello Abt,

I think the speed up of the lathe motor happens because when you brake the chuck on its middle (at the axle) part  you give a certain lifting force to the whole chuck, reducing its actural weigth a little so the motor senses less drag due to the less weight of the rotated chuck.

When you break the chuck on its outside jaw, the lifting force is missing but you now create an extra sideway force which causes an extra drag on the motor by actually hampering its rotation.

A friend of mine added: that is a babbitt bearing headstock as you can tell by the little covers where you put oil in... and belt drive. The force from the belt is down so he is lifting the shaft up, removing the downward force against the babbitt.
He would get somewhat the same effect when taking a cut as the material tried to ride upwards on the tool bit.

Gyula

Hello Gyula,
thank you for your thoughts.
I was thinking in the same direction but: I can brake the chuck jaw from top too and see the same effect. Your explanation might be partly right as the acceleration is a wee bit stronger when I brake it from bottom or sidewise but is still there when don from top side. More ideas?
Thanks
Abt

[gyulasun]

Hi Abt,

Well, I still think that the belt drive exerts a pulling force onto the shaft on the left hand side end (the chuck is on the right hand side end) and this tension (the vertical component of the force from the belt drive) is reduced when you start pushing down the end of the shaft where the chuck is. This way you kind of compensate for the tension force created by the pull force component of the belt drive. Here I suppose the belt drive pulls downwards or sidewise down at the left hand side of the shaft. 
If you could exert a push with the wood onto the shaft (where the chuck is) from the opposite angle the bell drive is actually positioned  i.e. 180 degree with respect to the pulling direction of the belt drive) then you would receive the smallest current draw possible I think, provided you exert similar pushing force like the actual pulling force that the belt exerts on the shaft.

I do not think the speed up effect comes from any motor anomaly.

Gyula

[ltseung888]

Use Unbalanced Cylinders as in the Tsinghua University Energy Multiplier.

Go to the Milkovic thread (search using 12 times) for details.