The "Acid Test" of a DIY machine is to mount the 1/8" bit in the
Dremel and flex it with your fingers. You will quickly figure out if
your machine or Dremel mount has design flaws. You won't need a dial
indicator the first go around. There are machines out there that flex
like a tree in the wind. Some flex in only one direction. While others
flex in all directions. The goal is to make the machine stiff enough
to equal the power of the Dremel. A stiff machine is worthless if the
Dremel stalls first. Most people mistake machine flex for backlash.
--- In Homebrew_PCBs@yahoogroups.com, "John Hansford" <kz1927@...> wrote:
>
> Thanks John,
>
> I wasn't sure which one you'd said to get. I looked back
> in the posts and see the Multipro is the one you suggest.
> I'll also do the shimming.
>
> I appreciate the quick reply. I'll be off to get one tonight.
>
> Thanks again!
> John
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@> wrote:
> >
> > I bought two MultiPro models (field coil) with speed control.
> > One has a rubberized body. I bought both of them at Home Depot($59).
> > Both have seen several sets of carbon brushes. The Dremel will run for
> > hours straight at 3-1/2 (12,000RPMs) Make sure you have good airflow!!
> > There are many clones out there that suck. The newer Dremel again
> > uses magnets instead of a field coil. This give better torq. Older
> > Dremels had magnets. My old Dremel (1984)is mounted in a Dremel Drill
> > Press. It is very old. The table lifts up on the drill press.
> >
> > To mount a Dremel you unscrew the finger grip to reveal mounting
> > threads. Grip the unit at the threads and the body. When done
> > correctly you can flex the bit without the Dremel moving. When
> > designing a CNC machine it is done from the cutting bit out. Holding
> > the Dremel in the midsection with a 1/2" wide clamp shows you have not
> > done your homework. A longer "V" block mount with clamp would be
> > acceptable. Drilling is not Milling.
> >
> >
> >
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "John Hansford" <kz1927@> wrote:
> > >
> > > Hi John
> > >
> > > I had an old Dremel that lasted for 10 years of hard
> > > use. As soon as they started screwing around with the
> > > design of it, they lasted a year at best. Is there a
> > > such thing as a good Dremel model now?
> > >
> > > Thank you,
> > > John
> > >
> > > --- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@> wrote:
> > > >
> > > > Holding any Dremel type tool in just the mid section says
BOGUS.
> > > > The motor tool needs to be held in two places for best results.
> > > >
> > > >
> > > >
> > > >
> > > > --- In Homebrew_PCBs@yahoogroups.com, Stephen Lane <sjlane@>
wrote:
> > > > >
> > > > > Stephen Lane wrote:
> > > > > I've just been sent an email alerting me to this months
(Jan)
> > > > > Elektor having a kit CNC Mill for sale they want 1099 UK or
> > 1599Euros
> > > > > for it not sure about international freight. the Article is
a free
> > > pdf
> > > > > download & the pics look like it'll be a good machine.
> > > > >
> > > > > Regards
> > > > > Stephen
> > > > >
> > > >
> > >
> >
>