Fly Cutter questions

[deverett]

I know this is a bit late in the thread and perhaps slightly off the mark, but has anyone tried out the Tangential fly cutter as shown in Mike's Workshop?

http://mikesworkshop.weebly.com/tangential-tool-flycutter.html

Dave
The Emerald Isle

 

[BaronJ]

Hi John,

Thankyou for your feedback, being able to compare notes is very useful. Getting a good finish on difficult materials is often not as easy as it looks.

I wasn't criticising your work at all,

I didn't take your comments as a criticism Indeed I am very happy to learn from others and improve. My intention was to provide more information that could be useful.

I note in a previous post Dave mentioned a "Tangential fly cutter" ! I've seen that design from "Mike's Workshop"
and I'm having a hard time understanding any benefit from it. For me there is no difference since one can grind a toolbit to provide the same attack angles using any conventional flycutter.

 

[deverett]

How does a vertical tangential tool get advantages over a normally set lathe tool? The cutting forces are transmitted through the length of the toolbit so there is less deflection. So, I suppose the same argument is used for the tangential flycutter.
Just read Mike's notes I so don't have any evidence of its superiority (or otherwise).

Dave
The Emerald Isle

 

[10K Pete]

How does a vertical tangential tool get advantages over a normally set lathe tool? The cutting forces are transmitted through the length of the toolbit so there is less deflection. So, I suppose the same argument is used for the tangential flycutter.
Just read Mike's notes I so don't have any evidence of its superiority (or otherwise).

Dave
The Emerald Isle

Easier to sharpen.

Pete

 

[mcostello]

Also freerer cutting, less force required.

 

[BaronJ]

Hi guys,

If you think about it, easier to sharpen doesn't mean a lot! You can still use those same cutting angles with a conventional fly cutter.

It works on a lathe because the work surface is curved, which it is not when fly cutting. The whole purpose of using a fly cutter is to obtain a surface that is flat with reference to the mill bed.

I have a tangential lathe tool and it makes a very good surface finish. Ideal for surfaces that might get used as a bearing for instance.