Milling Depron Foam

[flyingmike]

Hi Guys,

What is peoples opinion on the best milling cutter/burr for milling depron foam?

I have done a few cuts with a Diamond burr and results are ok. Just wondering if there is anything better out there.....

Thanks

Mike

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[Rc3Dpilot]

I use a rotorzip .125 grout removal bit at 10k rpm. The machine is a phlatprinter designed for cutting sheet foam RC airplanes.

Are you using the same machine? The tabbing looks familiar.

[flyingmike]

I`m using a Step Four basic 1000 for my milling and general cnc routing. What do you mean by tabbing?

I`m not sure what rotorzip is, is that like dremel? Have you got a link to the cutter so I can see what the profile is?

I quite like having a radius or dome cutter as it avoids getting a sharp edge on the milling.

[Rc3Dpilot]

I use the term tabbing to refer to the tabs needs to retain a cut part within its medium during the cutting process.

A rotorzip is a fancy Dremal. One of many styles

The bit is like this but has more bit cutting lenth and was a lot cheaper at my local shop.

The bit is basically a barrel with sharp bumps all over. I've cut up to 40 ipm (my machine max) and never had any melting issues. I did with all fluted bits I tried.

[flyingmike]

arh ok...the tabs I put in on my cad software. The step four cnc software does not include a feature to add tabs so I put them in manually.

The cutter you are using, is that more for completely cutting parts out? I`m experimenting with pocketing areas to leave about 1mm wall thickness at the moment.

[Rc3Dpilot]

I don't seem to have any trouble with pocketing. The phlatprinter web site has a few good pics of what can be done, just search the gallery. For a machine that can be assembled with most of its parts from a local hardware store it works surprising well.
http://www.phlatboyz.com/

[kram242]

Rc3Dpilot, thanks for the compliments on the Phlatprinter. We're glad you are happy with it.

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