On Thursday, February 16, 2012 08:16:36 PM Steve Blackmore did opine: > On Wed, 15 Feb 2012 16:29:36 -0500, you wrote: > >The plastic, except for temporary fitting wouldn't do for permanent as > >it will be trapped between the spindle preload nut, and it's locking > >nut in normal operation. That is driven tight with a drift punch in > >the nut slots. The plastic will 'cold flow', loosening the nut, and > >that won't be good for things. > > The Al flanged bush I have fitted could be made of steel and would > permit a preload nut. It's 5mm thick turned with a flange. The spindle > is 40mm dia, the bush is 50mm + a 10mm flange (70mm total OD). The > flange is drilled and tapped with 5 holes on a 55mm PCD. The encoder > disk is bored 50mm and fixed to the flange with countersunk 3mm screws. > > In my case the preload nuts are inside the headstock casting so it > didn't need to be anything special, just had to hold the encoder wheel > true and in a fixed position relative the spindle. > That sounds like the only thing in common is that the spindle shaft has bearings. :) Your sound like a real machine, but I think Toys would be done a disservice when I call mine a toy.
> The lathe has an encoder fitted as standard driven by a timing belt 1:1, > but the encoder is noisy. I had all the materials handy so it was simple > and cheap to make one as a temporary fix. Never got around to finding a > suitable replacement at the right price and to be honest, I stopped > looking as it works so well. > Its amazing how a little thought often comes up with a better idea than OEM, and you can get away with that every place but in the military. :( > Steve Blackmore > -- > > ------------------------------------------------------------------------ > ------ Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> Vulcans do not approve of violence. -- Spock, "Journey to Babel", stardate 3842.4 ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
