topic HSMWORKS Radial toolpath depth violation in HSM Support Forum

HSMWORKS Radial toolpath depth violation

nfelton — Mon, 01 Oct 2018 11:53:32 GMT

I'm having an issue with the radial toolpath in Hsmworks. Regardless of how I set my cut heights it always goes deeper than the level I've set. I've tried setting everything absolute from origin and specifying my depth. I've also tried setting my depth from the selection and model top and bottom. I have also adjusted my machining boundaries several times but nothing seems to keep it from violating my depth. I was lucky with the particular part that I'm running but obviously this could be catastrophic in the proper scenario. Has anyone else experienced this?

Re: HSMWORKS Radial toolpath depth violation

Laurens-3DTechDraw — Mon, 01 Oct 2018 14:48:24 GMT

Are the actual cutting passes violating the depth or are the leads/linking passes the culprit?

Re: HSMWORKS Radial toolpath depth violation

nfelton — Mon, 01 Oct 2018 17:32:22 GMT

It is the lead/linking passes that I'm struggling with. I can't seem to keep them from violating my cut depths. I have to modify the cut depth by .077" to keep it from going past my maximum z depth.

Re: HSMWORKS Radial toolpath depth violation

Laurens-3DTechDraw — Mon, 01 Oct 2018 18:33:59 GMT

Well that is "By design".

For some reason development thinks this is a reasonable thing to do. And if you don't want it to go below you have to model something. I've found this weird the first time I heard about it, but they stick to it no matter what you say.

So it's something you will learn to live with.

Re: HSMWORKS Radial toolpath depth violation

aewrmc — Tue, 02 Oct 2018 09:52:56 GMT

@Laurens-3DTechDraw wrote:
Well that is "By design".
For some reason development thinks this is a reasonable thing to do. And if you don't want it to go below you have to model something. I've found this weird the first time I heard about it, but they stick to it no matter what you say.
So it's something you will learn to live with.

So how is one supposed to find out about this? What is the use of an arbitrary bottom limit?

The other CAM system that I use previously did the same thing they then modified the link moves to have an option for it to not go past the bottom.

Re: HSMWORKS Radial toolpath depth violation

Laurens-3DTechDraw — Tue, 02 Oct 2018 11:31:55 GMT

@aewrmc wrote:
So how is one supposed to find out about this? What is the use of an arbitrary bottom limit?

The other CAM system that I use previously did the same thing they then modified the link moves to have an option for it to not go past the bottom.

Well good question.

I guess you don't.

It might help to set the leads to straight line, instead of smooth, but there doesn't seem to be a fix for this on the horizon.

Re: HSMWORKS Radial toolpath depth violation

ArjanDijk — Wed, 03 Oct 2018 08:04:29 GMT

Totally agree. Was also a bit surprised to see Zmin -0.44 in the top of my program, while the lowest Z I gave out was -.1. I have to look back, but is was not only the leads, but also a ball mill that wants to stay in contact with the surface.

Re: HSMWORKS Radial toolpath depth violation

Laurens-3DTechDraw — Wed, 03 Oct 2018 08:11:04 GMT

@ArjanDijk wrote:

Totally agree. Was also a bit surprised to see Zmin -0.44 in the top of my program, while the lowest Z I gave out was -.1. I have to look back, but is was not only the leads, but also a ball mill that wants to stay in contact with the surface.

Boundaries and Confinements can be seen as contact points.

Heights though are hard limits for cutting passes, just not for the linking passes.

So it shouldn't go past the bottom for actual cutting passes.