Re: Spindle Speeds - C6B Lathe


"John Stevenson" <john@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:9toh62tlnuo8eucrepc2lkngnd5u3p0dh4@xxxxxxxxxx
On Mon, 15 May 2006 20:44:13 +0100, "Steve"
<steve.withnell@xxxxxxxxxxxxxx> wrote:

I'm adding additional speed ranges to my C6B, primarily at the bottom end
eg 40-400rpm. Similarly nudging the top speed up from 2000rpm. 3500rpm
looks like a good theoretical target, but back on planet earth with a
125mm
chinese chuck on the spindle, what is a practical upper limit likely to
be?

Is pulley/spindle/chuck balancing a task that can be done at "home"?

Regards

Steve


Steve,
2K sounds fast enough for me, 2,500 max
Why do you need to go above this ?

I have modified my C6B to two step poly vee, I'll check later what the
speeds are in the two ranges given your 10% envelope.
--
Regards,

John Stevenson
Nottingham, England.

Visit the new Model Engineering adverts page at:-
http://www.homeworkshop.org.uk/

The purpose of modding the C6B was to get some grunt at the bottom end - so
no real requirement to go above 2000rpm, just wanting to get best benefit
from the mod, while I'm picking pulley sizes.

Thanks

Steve


.

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