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As far as cutting strategies I am partially cutting 2d and 3d where it calls for it.
This part is 11 x 6 and 1" thick
I am looking at solid pvc (grey) The other material: ,Delrin, Copolymer ect....

Whats the difference between non expanded pvc and expanded pvc. Also where do you get it

I take it that Copolymer is expencive. do you have any sources as to where to get it .

The Valchromat...

I am on contract for 3d carving , 2 sided , 200 each of 5 different parts
We originally were going to make them out of Valchromat. Valchromat is a resin based mdf that comes in different colors. ...

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In what way dose the gantry need stiffened ? I've got a PRT 96

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Thanks Brady
Thats The kind of info from experience I was Looking for . It helps me justify spending the extra $800 for the Colombo.Of course Ive spent close to the cost of a spindle on PC...

about the"warm up", I don't keep my shop heated in the winter, use a space heater when working . will starting it up in the cold be a problem ? affect bearing life ect.

On the HSD someone above...

I would certainly not hesitate to purchase the same one I have now. I can hog off some pretty aggressive cuts on hard woods, with a 5/8" spiral end or ball end mill.[/QUOTE]

At what depth per...

Thanks for the great replies. what do you mean by HDS not as "bulletproof"
In the 10 years of using the columbo have you had to replace bearings or anything?

After about 10 years of owning a PRT 48x96 I'm ready to upgrade from a PC router to a spindle motor.
I work primarily in hardwoods cutting 3/4 inch and also 3d carving. at 2 inch per second...