Basic Turning Speeds

[CHJ]

Basic Turning Speeds Pdf.

Note: the last three columns are just for a gentle musing about the impact potential of anything that decides that it does not want to stay attached to the rotating piece.

 

[Woodmagnet]

Thanks for taking the time Chas :wink: ,
i've now saved it for future reference.

 

[Doug B]

I`d also like to add my thanks Chas.

As someone who has often wondered at what speed i should be turning, this makes interesting reading.

Thank you.

 

[DaveL]

Thanks Chas, confirms my thoughts that 500 rpm is too fast as the slowest speed for doing any biggish stuff. ](*,)

 

[mikec]

Thanks Chas thats very useful.

Regards,

Mike C

 

[Lightweeder]

Very useful Chas. Confirms that my concerns over my new Charnwood W821 are well founded. Speeds Low 650-1450, Medium 1250-2800 and High 1600-3800 :?

 

[Deejay]

Thanks Chas

Is there any particular reason for choosing 26 ft. per sec. as the cutting speed?

Cheers

Dave

 

[CHJ]

Is there any particular reason for choosing 26 ft. per sec. as the cutting speed?

Somewhere in my dim and distant past the figure came up as an ideal cutting speed for wood, sorry but I'm afraid the original reference escapes me.

To my mind any particular species of timber, or piece for that matter, has an ideal cutting speed, but I guess cutting machines and cutters in general have to have a nominal design figure and I believe it's somewhere near that.

It seems to be a middle of the road speed based on various simplified guides often seen quoted, for instance one often quoted guide uses the following:
For rough pieces: 5000/Dia. = rpm E.G. 5000/12 = 416rpm
For smooth pieces: 8000/Dia. = rpm E.G. 8000/12 = 667 rpm

26ft per min. is near enough 500 rpm. for the same dia.

 

[Jenx]

Nice one, Chas ! 8)

 

[Deejay]

'Somewhere in my dim and distant past the figure came up as an ideal cutting speed for wood, sorry but I'm afraid the original reference escapes me.'

I know exactly what you mean. Thanks again.

Dave