Arc with the Z axis....

[Bluegillman]

I was wondering how do u guys make an arc on the Hurco milling machine going from x.5 and z.5 with .25R then x.5 and zo again with .25R? I was making those "thumb screws" using a ball endmill for the sides and had to do that top arc by laying down the milled thumb side then do the arc but I wanted to do it all in one shot without too many ops.
I called Hurco about that and they said something about "3d machining" which we don't have installed. I know I can do it in any angle but an arc?

[mmachining]

What hurco is this on?

[Bluegillman]

VM2....only thing installed on it is the DXF format.

[Bluegillman]

BMC 30 that's what we got, I was wrong with the other posting. Sorry.

[jetski]

send me a pic or drawing of what you are trying to do and I will help if I can. Use to be the Senior App. for Hurco. gsilberberg@progressive-plastics.net

[Bluegillman]

Let's see if I can "write" a picture to you.
Stock is 3/4th diameter and one inch tall on one end with 7/16 - 18 thread and two inches long on the other end.
Top of the stock becomes 3/16 wide with each sides having 5/8th ball endmilled flares out to the 3/4th diameter. Then the top having an arc going across along with the 3/16 wide by 3/4th diameter, arc or rad being about 1/2. (Note all that is for looks and feel on your fingers as in those thumbscrews)

[jetski]

Fax me a hand sketch. 765-552-7773 to George

[sluggo]

Could you program the whole part with the G&M side of the controller? Then you could use G17, G18, or G19 to change the plane.

[jetski]

You can but in the past Hurco was backwards on cw and ccw when you switched planes. I just cut a cavity with our hurco and programed m and g and went with small step overs and made a nice looking round that the axis runs parallel to the parting line.

[Bluegillman]

Originally Posted by jetski Fax me a hand sketch. 765-552-7773 to George

Sent from work as I didn't have a Fax.

[jetski]

I got the fax. Hurco's 3d would work for this. But you could also do it with mastercam or bob cad at a greatly reduce price from what Hurco wants for their 3d. I would use the NC side and do a program with Mastercam or bobcad. Either would do it and Bobcads prices are good.

[RON MEYER]

open a milling block - - lines and arcs - - 3d arc. arc can be struck from any point to any point. fill in the blanks. if you need multiple arcs along a line or rotated about a point, use loop linear or loop rotate pattern. poor man's conversational 3d. ron