Re: [CAD_CAM_EDM_DRO] New guy with questions

gm4ta@... wrote:

> Hi I'm new to this group and I have a few questions that may seem so
> basic it will probably be ignored. But here goes . . .
>
> How do I tap a hole (in plain cold rolled steel) with a tap? Could I
> do this with a wrench?

You can, but regular wrenches make it VERY difficult to not put
a side force on the tap. This causes real problems when tapping.
Tap wrenches are designed so that you can apply torque while
balancing out side forces. they come in a variety of sizes to match
the size tap you will be using, and the handles get longer for the
big taps.

> What is the standard (or at least most popular) program for CNC
> machines? Just like how AutoCAD is the standard for CAD drawing.

There certainly isn't ONE. it depends somewhat on the type of
machine (lathe or mill) and the type of motors/drivers you will be
using. it also depends on your budget and the type of work you
will be doing, ie. 2D, 3D, continuous surface countouring, surface
finish required, speed required, etc.

> What is a good price guide that machining services charge?

Huh? You mean by the hour? I'm not sure you can compare
hourly rates without knowing how many hours a particular shop
would take to do it. The setup time often eats you alive.

Jon