|
Posted by Austin Shackles on January 22, 2008, 5:32 am
Please log in for more thread options
On or around Mon, 21 Jan 2008 22:47:39 +0000, Richard Edwards
>On Mon, 21 Jan 2008 20:38:30 +0000, Austin Shackles
>
>>The student is a bit noisy, too. partly that's gear-driven lathes for you.
>>It's also a 1960 machine and looks not to have had too much TLC for at least
>>half its life. Still prettty good, mind - the worst issue (yet to be
>>addressed properly) is play in the crossfeed. I'm inclined to get a spare
>>nut and screw and then try to convert it, using either one nut cut in half
>>or 2 nuts, to the same kind of adjustment that the Mk 2 has.
>
>Granted that backlash in the crosslide screw is irritating, but why is
>it so much of a problem?
There's rather a lot of it on this machine. From my observation, you push
the tool towards the workpiece, and it has the ability to move further than
you want it to, in this case by something around 14 thou. Makes for a lack
of accuracy, apart from anything else. Up to a point, you can get around it
by adjusting it so it's stiff, but that makes it hard work, and if doing
power feed, puts more strain on the feed mechanism. I'd prefer a solution
that removes the play.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Travel The Galaxy! Meet Fascinating Life Forms...
------------------------------------------------
>> http://www.schlockmercenary.com/ << ...and Kill them.
a webcartoon by Howard Tayler; I like it, maybe you will too!
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
>It's also a 1960 machine and looks not to have had too much TLC for at least
>half its life. Still prettty good, mind - the worst issue (yet to be
>addressed properly) is play in the crossfeed. I'm inclined to get a spare
>nut and screw and then try to convert it, using either one nut cut in half
>or 2 nuts, to the same kind of adjustment that the Mk 2 has.