Re: [CAD_CAM_EDM_DRO] Re: High Speed Spindle for SIEG X2 - Finally .... ... just a nagging doubt ?

Hi Chris,

I'm interested! I believe I understand what you're going to do in
mounting the Proxxon spindle along side the normal spindle of your mill.

But why do you need to shift between the two spindles for PCB work? I
can see the need to change tools. Can't the Proxxon do both?

If the main spindle could be removed, it might be better. That's what
I'm planning for the Sherline mill, which of course is easy in this
regard. I have a mount for the DeWalt DW670 designed to fit the Sherline.

Cheers,

Alan KM6VV


Chris Horne wrote:

> I think I will give it a shot.. I will order one on Monday.
>
> I have a 'Minicraft' drill which is now at least 10 years old and was
> used in a commercial environment drilling 4mm holes in PVC. It was
> chosen to be mounted in a larger machine that did all kinds of clever
> cutting because of its small size. I guess it is probably
> significantly more flimsy than the Proxxon, but survived hundreds of
> thousands of holes running for hours at a time. There is no mention of
> a time rating on it though. If the Proxxon is as good (and as
> technology has improved, it should be significantly better) I guess
> lifetime should be almost indefinite with minimal lateral force.
>
> I suppose I should explain what I want to do..
>
> This particular application is drilling and then profile cutting pcbs
> into odd shapes and I was hoping to use the Proxxon piggy-backed onto
> the mill for drilling and the uprated main spindle of the mill
> (actually an X1 in this case) for the profiling. I guess I should get
> round to CNCing a spindle controller to switch between spindles, which
> would give each a rest while the other is performing. The spindles
> only need to run about 3 inches apart to allow the unused spindle to
> clear the workpiece. Currently, I have to run the boards through
> twice, once with a carbide drill and a second time with a carbide end
> mill. If this works, it will save 50% of the handling time without the
> expense and complication of building an auto tool changer.
>
> It's a pity that the holes are too hard to punch directly in the
> boards or I would use the Mill to build a press tool to do it all in
> one! I did experiment, but punching from the plain side ripped the
> copper track, and punching from the track side splintered the hole on
> the other side.. getting the board off the punch was another story
> altogether!
>
> Thats prabably enough rambling.. I'll get a proxxon and try it out!
>
> Cheers Guys
>
> Chris
>