Re: [CAD_CAM_EDM_DRO] Re: HF micro mill (part no. 47158) suitability for CNC

Excellent

you are way ahead of me then. ill be picking your brain soon.....

this discussion should be on topic here, but might be better suited to
the Micro Mill Group...


C Cowley

On Mon, 2003-10-13 at 11:16, david_margrave wrote:
>
>
> Hey Chris, thanks for the link! I just joined the hf47158toCNC group.
> I do have a 7x12 and a mini mill, as well as being a part-time
> student at a technical college with a fully-equipped machine shop
> (lathes and mills of all sizes, surface grinders, etc). I think I'll
> go for this machine. I'm aware of the 'tuning' that these budget
> import machines require!
>
> At this point I have my homebrew stepper board with 1 axis so far
> working. I have DIP switches with pull-up resistors for setting
> various things like stepper direction, waveform (half step, full step,
> etc). I successfully drove one stepper from a linux/EMC system. I
> just have to finish the board and then I should be all set on the
> electronics and computer front, and just need the machine.
>
>
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, Chris Cowley <rotorheads@e...>
> wrote:
> > just bought one today... and its already completely stripped down for
> > re-machining.
> >
> > check out
> > http://groups.yahoo.com/group/hf47158toCNC
> >
> > i would not recommend it if you don't have access to larger machine
> > tools or would not be willing to drop the coin to farm out the work, as
> > you could probably cut better dovetails with an axe...... and this will
> > make life hard for motors, drivers, screws, tooling and you.
> >
> > here is a short list of bad news:
> > the lead screws come pre-bent.
> > the screws are supported on plain bearings not taper roller or even ball
> > bearings.
> > the nuts are iron.
> > the gibs are iron.
> > needs counterweight of some kind
> > need to chop about 10 pounds off the headstock
> >
> >
> > consider it a rough casting.
> >
> >
> > otherwise. yeah, it will be an excellent desktop machine IMHO.
> > i really like mine already, in case you could not tell......
> >
> >
> >
> > C Cowley
> >
> >
> >
> >
> > On Sun, 2003-10-12 at 23:20, david_margrave wrote:
> > >
> > > Hi,
> > >
> > > I'm basically just looking for something low-cost to play with CNC
> > > with the EMC linux software and a homebrew stepper board using the
> > > allegro micro drivers. I'm going to be doing mostly light-duty work
> > > (plastic, printed circuit milling, maybe some aluminum).
> > >
> > > I'm considering either a cheap X-Y table and then making a Z column
> > > with feed, or just spending a bit more and getting this $300 micro
> > > mill from harbor freight. I'm interested in this machine's
> > > adaptability for this task. The Z-axis looks strange, having a handle
> > > at the top of the column, and two quill feeds (coarse and fine). I'd
> > > be interested in hearing from anyone who has one.
> > >
> > > Thanks,
> > >
> > > Dave
> > >
> > >
> > >
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> Addresses:
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>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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>