Re: [CAD_CAM_EDM_DRO] Re: 7 square holes --was,lost post

Fred,

First of all, i was NOT therorizing! After many years of working with
compound angles FOR A LIVING, I was pretty damn sure I knew what I was
talking about.

Sure...if you have a CNC machine you can tilt the part. If you don't have
one, your stuck with tilting the head.

>You have disagreed with my suggestion but not provided anything to help me,
>or others to logically conclude if you are correct or not. As the answers

about how

>to calculate the correct angles might have a very practical impact on the

ability to

>actually program a 5 axis machine I am interested in your views.

Since I do have a life of my own, I didn't have the time to sit down and
DRAW a sketch indicating the required grinding angle for you on a moments
notice. I did say (see below) I'd have to DRAW this and calculate the
angles.

Since your so impatient, and assume I don't know what I'm talking about, I'm
posting a jpg drawing that shows very clearly what the angle needs to be
ground to for the particular angle of elevation shown. The picture is
plainf enough that anyone with a modicum of knowledge of geometry and trig
can solve the grind angles for other angles of elevation as well as maximum
depth of hole without interference, or angles for tilting the head on manual
machines. You'll also be able to solve the grind angle in case you want to
machine holes having 3, 4, 5, or any other number of sides.

>
>>The angle you need to regrind the point to depends on what angle the head

is

>>tilted to. I'd have to sit down and draw this out and calculate the

angles.

>>At the same time I did this I'd be able to check for clearance between the
>>tool head and the work.

I've got to run...have more PERSONAL things to do this morning

Smoke