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Posted by Bob Minchin on August 25, 2006, 3:56 pm
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> Bob Minchin wrote:
> >> My Holbrook C10 has a 4-way toolpost that the manual calls a "turret"
> >> but I want to replace it with the Multifix that I acquired from eBay
> >> some time ago. The problem is that I can't get the toolpost gubbins off
> >> the compound slide!
> >> I've removed the toolholder block, the 4 screws that hold the ramped
> >> base onto the compound slide and the 2 other screws through the bottom
> >> of the compound slide into the toolpost base.
> >> But the *&^&damn thing won't budge.
> >>
> >> I assume these are standard toolposts that fit into a circular hole -
> >> what's the secret to getting them off?
> >> (I'll ask in the Holbrook group too, but this one seems more active)
> >>
> >> Dave
> >
> > Hi Dave,
> >
> > Some lathes have a circular mount with a dovetail section. Look for a
couple
> > of screws one in each side of the topslide which may release the
toolpost.
> >
> > hth
> >
> > Bob in Romsey
> >
> >
>
> A good idea but unfortunately there aren't any screws on the sides.
> Underneath the slide there's a circular recess beneath the post, in this
> recesss is a metal plate, 2 screws go up through this and into the post
> BUT it looks as if the plate is held in place by 2 screws coming down
> through the slide and into the plate! Does that make sense?
> Heat and hammers are coming to mind but I don't want to damage the
> slide. Another idea is to try to drill/tap the centre of the metal plate
> and to screw-in a bolt in the hope that it presses-out the post - but
> I'm not optimistic.
>
> Just as a thought, if I were to borrow the oven for a few hours which
> will expand more, cast iron slide or MS toolpost?
>
> Dave
According to http://www.handyharmancanada.com/TheBrazingBook/comparis.htm
expansion of steel is less than that of cast iron.
So using swmbo's oven could be a worthwhile experiment
Good Luck
Bob in Romsey
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> but I want to replace it with the Multifix that I acquired from eBay
> some time ago. The problem is that I can't get the toolpost gubbins off
> the compound slide!
> I've removed the toolholder block, the 4 screws that hold the ramped
> base onto the compound slide and the 2 other screws through the bottom
> of the compound slide into the toolpost base.
> But the *&^&damn thing won't budge.
>
> I assume these are standard toolposts that fit into a circular hole -
> what's the secret to getting them off?
> (I'll ask in the Holbrook group too, but this one seems more active)
>
> Dave