On Tue, 19 May 2009 18:00:40 +0100, you wrote:
Just a quick followup on my query about using a single index pulse for
threading. I got it set up on my lathe with a magnet and a hall sensor.
It reads the speed pretty accurately though there is a bit of jitter at
higher speeds (500rpm upwards).
On Tue, May 19, 2009 at 09:31:46PM +0100, Steve Blackmore wrote:
On Tue, 19 May 2009 18:00:40 +0100, you wrote:
Just a quick followup on my query about using a single index pulse for
threading. I got it set up on my lathe with a magnet and a hall sensor.
It reads the speed pretty
Hi Steve,
I'm not seeing that. At low speed, say 100rpm, the displayed spindle
speed is rock steady, within 0.1rpm. Mind you I am using a low pass
filter on the spindle speed display. Perhaps I should try it without the
LPF.
At lower speeds the distortion of the thread is less as well. I