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Re: [TCML] Machining Question - Techniques for Cut-Off Sawing



Dan:
As to milling machine: Milling cutters are expensive and don't stay sharp for ever. I don't know any one who can sharpen them well on a bench grinder. A good tool and cutter grinder will pay for itself when compared to buying new cutters every time one gets dull. You can save on cutter sharpening if you use a saw to remove as much stock as possible before you mill the part to dimension.

I notice several on the list like the metal cutting band saw. I make the same suggestion. Grizzly, Tool Town, and Harbor Freight have serviceable ones built like the Do All which can be used to cut off stock up to 4 inches in thickness, or with the accessory table, used like a " jig saw" for cutting large radius curves.

Cutting tools such as milling cutters as well as saw blades are designed specifically for the material you are going to try and cut. Brass isn't as gummy as aluminum and plastic is worse still. Some things are very abrasive. Plastics containing glass and believe it or not, teak lumber will take the edge off any tool in short order. Teak has a lot of silica in it. I think you will find that though brass and aluminum have their uses, they are harder to work with than steel.

Ray

On Feb 7, 2008, at 7:44 AM, Mccauley, Daniel H wrote:


Just getting around to finally investing in a vertical mill, and am
looking at what options there are for a cut-off saw.
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