Shaft Whip - Page 3 - CNCzone.com-The Largest Machinist Community on the net!

BeerFizz · #25 12-16-2003, 10:27 AM

Better detail of the right hand side of the chart...

ger21 · #26 12-16-2003, 01:32 PM

It looks like about 30 ipm to me for the simple (A), about 120 ipm for fixed (D).
Gerry

BeerFizz · #27 12-16-2003, 04:51 PM

Perhaps I wasn't clear or perhaps the document isn't clear, but I was thinking of “Simple” as representing one bearing at each end, and “fixed” as representing a double bearing at each end. This would then correspond to line “B” and line “C’ on the chart, respectively.

ger21 · #28 12-16-2003, 09:12 PM

Looks like you're about right, then.

Gerry

martinw · #29 03-29-2006, 11:29 AM

[QUOTE=ger21]It looks like about 30 ipm to me for the simple (A), about 120 ipm for fixed (D).
Gerry[/QUOTE

Dear Gerry,

This may be a daft idea, but has anybody thought of spacing the two halves of their anti-backlash nut several inches apart? If you did, the AB assembly itself would become fixed, I think, and would greatly lessen any tendency of the leadscrew to whip because the two halves of the nut would keep the screw in line.

Regards

Martin

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