Re: [CAD_CAM_EDM_DRO] Using a porter cable router to cut aluminum

Hi all,

My name is Dennis Pfister, aka: sandeater
I'm also new to the group. I'm a retired Tooling eng./Tool
and Die Maker. For the past 10/12 years, I have been putting
a shop together. Now, that its done, I have the time to
learn how to use CAD-CAM-CNC to do the jobs that are just
sitting there looking at me.<G> I have been looking at this
site for about a about a week/10 days. Great site!! I've
learned a lot just looking!

I have a Grizzly G1006 mill/drill that I'm converting to
CNC. The machine is very good at milling aluminum with a
1/2" bit. I take 1/2" deep by 1/4" to 1/2" wide cuts at
about 4" to 6" ipm, at 650 or so rpm, leaves a very good
finish. (last cut at a slower feed of 2"/3" ipm at about
.005/.008" cut.)

I have an Ideal MK-4 power feed on it at this time.
I saw a how to do article in HSM magazine, about 2 or 3
years ago. As I had a Mk-4, I took about 2 days to install
it. AND, that got me to thinking about CNCing the machine.

I talked to Roland Friestad, of Cardinal Eng., at the
N.A.M.E.S., Exhibition in April, 2002.
He has a column in HSM magazine related to CNC a Grizzly
G1005 Mill/drill.
He suggested that I use no less then 450 oz/in steppers or
servos. As I have a few Japan Servo Co. steppers that look
like they my be large enough. I'll use them.
They are type KP86SM2-002
2.35 vdc, 2.78 amp, 1.8 Deg/Step. 4 wire bipolar.
Anyone know the oz/in spec on these motors? I tried there
home site, no luck.

I'm slowly doing all the machining to retro-fit my G1006.
A larger table is the difference in the
2 machines. I added a drum switch to it for reversing the
spindle. It has been a very good machine for my use.

I hope this helps on the cutting of the aluminum.

sandeater
dpfister@...




Tyson S. wrote:

> Thanks for the information, I have been looking
> at the Grizzly G1006 with the 2 horse motor but I am
> not sure if that is even good enough, I might try and
> find an affordable price on a full size Bridgeport,
> but those are hard to find that are not worn out.
>
> --- Jon Elson <elson@...> wrote:
>
>>
>>Tyson S. wrote:
>>
>>
>>> Good information, what would be the smallest
>>
>>size
>>
>>>of end mill machine that you would recommend for a
>>>home shop user to work with 1/2" aluminum and the
>>>such.
>>>
>>>
>>>
>>
>>Well, it depends somewhat on how much speed and
>>accuracy
>>you are looking for. We have an Enco 3-in-1
>>machine at work, and it
>>is awful. Some of the other models with the head
>>that can be
>>raised are a little better. I have a mini-mill
>>(sold by nearly
>>all the dealers, now, for ~ $399 -499) for demos,
>>and it is getting
>>close, but still lacks rigidity. There is a Grizzly
>>machine with
>>a dovetail or box vertical column that is supposed
>>to be pretty
>>good. If you don't need anything fast, then I think
>>you could do
>>your 1/2" plate with that. A client of mine in the
>>area has the
>>geared-head version, a little bigger, still. I
>>would definitely
>>NOT recommend that model, as it has a 1500 RPM top
>>speed.
>>You definitely want to be able to get 2500 RPM, 5000
>>would
>>be even better. An R-8 spindle would be nice, as so
>>much tooling
>>is available for it. Otherwise, make sure it has a
>>standard taper,
>>so you can get tooling from local suppliers.
>>
>>Jon
>>
>>
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>
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>
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> 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.
>
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