re: Room for everybody (still)

Bob,

Thank you for this post. I think we're in agreement here? The post
you are replying to(mine) is mostly about lo-res machines for other
than metal. I DID read the entire thread, and saw the opening to
welcome some lurkers into the light...

Hope this helps.

Ballendo

--- In CAD_CAM_EDM_DRO@y..., "cncdxf" <cncdxf@a...> wrote:
> Ballendo,
> The original post was asking if threaded rod would
> be ok for wood working. Then all kinds of answers came. It
> is obvious to me only a few people read the posts. Making
> a wooden sign using a machine that has threaded rod would
> turn out the same product as a more expensive machine. The
> proof is in the internet. There are two large sites devoted
> to homemade machines. How many people have taken an anti-backlash
> nut put it on standard threaded rod and measured the error. What
> is it? There are alot of craft people out there that are jumping
> into CNC. Their suff looks great even with a .006 error. Anybody
who
> is anybody in CNC started off building their own machine. John told
> me he is getting swamped with orders. He has opened up the CNC door
> for me and others. I was milling boards for a local company using
one
> of John's designs. The company just had a big layoff. So much for
my
> egg money. Go back and read the posts on threaded rod, then read the
> orignal.
>
> Bob
>
>
> --- In CAD_CAM_EDM_DRO@y..., "ballendo" <ballendo@y...> wrote:
> > Bob,
> >
> > I applaud John K's minimalist approach... But,
> >
> > On this list people are "doing" cnc for many different reasons,
and
> > with VERY different needs and expectations.
> >
> > Some will be very happy just to have a machine that moves
somewhat
> > repeatably. Period. Others are wanting/needing to work to better
> > than .001 accuracies.
> >
> > And this distinction IS NOT drawn between "amateur"
> and "commercial"
> > users! It depends on the parts needed. AND the material!
> >
> > One of the things that I find a little frustrating is that the
> > majority of posts on this list seem to refer to CNC as used for
> METAL
> > working. And "tight" tolerances. CNC is applicable FAR
> beyond "just"
> > metal. Where are the woodworkwers? Where are the plastic workers?
> The
> > engravers? The pc bd makers?
> >
> > I think Chris Strattons recent post about cyclic
> variations "ruining"
> > his tubing mandrel? to be one of the more useful bits of info
> shared
> > recently. Something many wouldn't otherwise "think of"...
> >
> > We have seen the list recently become "re-aimed" at the home shop
> > user. Okay. I hope that we will ALSO see some of those who work
in
> > that "home shop" with OTHER than metal, at all levels of accuracy
> > needs, feeling free to speak up...
> >
> > Hope this helps.
> >
> > Ballendo
> >
> > P.S. What I'm saying is that there may be many who just don't
speak
> > up because they may feel that their 100 step/inch machine will
> > not "measure up"... Or that a question about depositing glazes on
> > tiles to be fired (with cnc) will find no answers...
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "cncdxf" <cncdxf@a...> wrote:
> > > Hi Ballendo,
> > > I suspect the people who had trouble with threaded
> > > rod used a regular nut also. Tapping a piece of 1/2" Delrin to
> > > run on the nut works great. I also suspect they used coarse
> > > threaded rod. John K got me to use <snip>