Need Help!- milling taper on a HURCO BMC

[maslo]

I'm new to the Zone, and looking for help cutting a taper bore with a Hurco BMC 4020. I have the ultimax 3 control. Is it possible to use conversational programing to do this?

[gthlm]

You can't do tapered helixes in conversational, so really the only (practical) way would be to program a linear move from the top to the bottom and pattern rotate it around the centre line at very small divisions. Probably not a great solution, but it depends on your application. If you have cam software, you'd be better using that to spiral mill it. I use featurecam and do this from time to time with good results.

Gregor

[maslo]

Thanks for the advice. I cut it in many small steps for now. I will be looking into some cam software.

J

[Rally]

Originally Posted by maslo Thanks for the advice. I cut it in many small steps for now. I will be looking into some cam software. J

Do the Helix as mentioned above! Keep your step-down small enough and you should get adequate result.
I did it on one occasion and it looked just fine.

[maslo]

I did some research on the Hurco software on the mill. If you have the 3D package, you can choose XZ revolved about Z. Fill in the blanks and add top, bottom diameter and Z depth. The Hurco will do the rest. It makes a smooth cut and can be programmed in a couple of minutes.