By CNC, you mean the tiny dremel router, right?
Machinist for a living- it'll do any material- echoing again, speeds and
feeds- and tooling choice- critical.
That thing will not do large cuts by any means. I would not use anything
larger than a 1/8" endmill and maybe
0.05" DOC (depth of cut) at a time on it. Even that maybe is too much. If
you do small DOC, and many passes,
as long as there is decent repeatability in the thing, it'll cut metal
fine, just not quickly at all. Cutting oil like
the tap magic I left there would help a lot in lowering cutting pressures
on spindle.
I haven't seen the thing in action though, but being that the spindle is a
dremel tool, it isn't rated to handle
load under metal cutting like that for long periods, you might blow the
bearings out Bob.
Don't use anything more than 3 flute cutters- not enough chip clearance for
chips to escape for such small
endmills on that. Might try the so called o-flute (1 flute) endmills. They
are designed for aluminum, we use
them at work for plastic.
Chuck up on tool before flutes as much as possible- shorter the endmill,
better the results you'll get. Less
hangout means factors higher tool rigidity, which is critical for good
results with smaller endmills. Stiffness too-
micrograin carbide tools will be your friend.
Look forward to seeing your results- sorry I couldn't make it today,
brother's birthday.
-Andrew
On Sat, Feb 6, 2016 at 3:28 PM, Steven Owens <stevenjowens@xxxxxxxxx> wrote:
Brass?! Awesome!
On Feb 6, 2016 3:27 PM, "Robert Berger" <bob@xxxxxxxxxxxx> wrote:
The test I did used a 1/8" 2-flute end mill with 0.5mm depth/pass.
I kept the piece wetted with light oil.
My next test will be cutting brass.
- Bob
On Feb 6, 2016, at 3:23 PM, Joachim Hall <jjoachimhall@xxxxxxxxx> wrote:
Bob has machined some aluminum on the CNC and it turned out very nice.
Like Alex said, speeds and feeds. Really slow feed rate and very shallow
passes.
On Feb 6, 2016 2:50 PM, "Alex Reasinger" <alexreasinger@xxxxxxxxx> wrote:
I have not tried it yet. But with the right speeds and feeds it should
be able to handle aluminum.
What are you trying to make?
On Feb 6, 2016 11:49 AM, "Steven Owens" <stevenjowens@xxxxxxxxx> wrote:
Can the cnc handle aluminum?
