I don't know the spindle speed -- I have a tach, but haven't measured & written down the speeds at each setting -- as fas as it would go with my 1725rpm motor, but there's a pulley exchange there that's likely specific to my lathe.
For the crossfeed: I'm also not sure how the gearbox translates to crossfeed speed.? I was using the 224tpi / 0.0015" per rev gearbox setting.? Does anyone know how that translates to a radial velocity?
On Tue, Apr 11, 2023 at 10:57?AM mike allen <animal@...> wrote:
??? ??? What speed were you using ?
??? ??? animal
On 4/11/2023 9:00 AM, Rogan Creswick
wrote:
Yeah, I was pretty worried about that stick-out,
but I only had three 3/16" endmills; two of these, and one
shorter 2-flute. I wanted the extra flutes, given the speed
limits on my lathe, but these 4-flute endmills?are fluted for a?
*long* ways, and I needed enough clean shank to indicate on.
I did break one of them in a test cut, feeding by hand,
though, so the power cross-feed really made this possible.? I
have a really hard time feeding that slowly and steadily by
hand.
On Tue, Apr 11, 2023 at
7:37?AM J Bothwell <jcbothwell@...>
wrote:
Thanks for the great video and picture!? I'm
amazed you were able to do that slot with that end mill
hanging out that far. Nice. :-)