Not really a press fit, since it spins and there are no bearings. Sounds to me like the end of the shaft is buggered -- possibly by galling due to the lack of a thrust washer. I don't see any choice but a hammer or wheel puller. There is a danger that the inside of the lead screw bracket will be scored in the process. The shaft should be make of harder stuff, but I don't know for sure. In any case, you need to carefully stone down any dings in either part so that the block slides on and off easily. If it's really bad, it may be necessary to replace one or both parts, but I doubt it will come to that. Even if the fit ends up slightly loose, it should make no discernable difference in the performance of the mill.
Good luck, and let us know how you make out.
David Clark in Southern Maryland, USA
--- In GrizHFMinimill@yahoogroups.com, "chucketn" <chunk07@...> wrote:
>
> FWIW, I found a description of removing the Y axis leadscrew and bearing block at http://www.fignoggle.com/machines/x2mill/howTo-removeYScrew.htm . It describes removing the block by driving the lead screw out of it with a hammer and block of wood. Sounds like a press fit, but why if there is no bearing?
>
> Chuck in E. TN
>
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/GrizHFMinimill/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/GrizHFMinimill/join
(Yahoo! ID required)
<*> To change settings via email:
GrizHFMinimill-digest@yahoogroups.com
GrizHFMinimill-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
GrizHFMinimill-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/