X7 Blend Question

[NunoFelix79]

Hi all,

 

Please see my attached picture. Its seems that my cutter will ride the edge of the cavity, which i wouldn't want to happen.

Any suggestions? I always have a hard time with Lollipop Endmills and blends.

What i have done in the pass is extrude the top face up 0.002" and then add the the surfaces created to the Drive surfaces and avoids what is happening here. But for some reason when i tried doing it now, on this program, it gives me a wacky toolpath. 

[Guest]

Tough to give any real suggestions based on a pic alone....

 

How you blend curves are set up, the cutting tolerances, the filtering.......could be any one or a combination of several things

[crazy^millman]

I would really like at Morph Between 2 Curves. It handles Lollipop cutters about the best IMHO.

 

HTH

[NunoFelix79]

I dont have the option of Morph, is that X8 or X9?

[NunoFelix79]

I think i was able to fix the issue of the edges.

I tried attaching the zip to go file but its too large. I can send to your email if you can provide. Any way one of you can take a look at let me know if i'm taking the best approach to this cut? There are two separate models, one for top cavity and one for bottom. One cut on G54 and the other on G55. I'm just concerned now about the undercuts.

I appreciate your time.

 

Nuno

[NunoFelix79]

By the way i found the Morph toolpath. Can i use it on a 3 Axis?

[Guest]

By the way i found the Morph toolpath. Can i use it on a 3 Axis?

 

Yes, there is an option on the Tool Axis control branch

 

 

 

If you want to send your file

 

jmparis65 at gmail dot com

[NunoFelix79]

Just sent it. I appreciate your time as always.

 

I'm not too familiar with the Morph, playing around with it now. Not even sure if the tool i have or tools i have will make this undercut either. 

[Guest]

I'm opening your file now but if you're trying to do an undercut, Surface Finish Blend will not machine an undercut

 

Let me get a looksie

[NunoFelix79]

I have done it the past, with a lollipop endmill.

[Guest]

I have done it the past, with a lollipop endmill.

 

You have simply gotten lucky then on some geometry

 

Flowline, surface finish contour and a couple of the multi-axis paths are the only one that will undercut

[NunoFelix79]

interesting. What you recommend?

[Guest]

I changed a depth setting on one of the blends to get it off the top of the part...waiting on that to generate

 

I may try something with a  half moon surface and a flowline and then project that down......a flowline won't currently work as you are most likely aware there a many different directions on all those surfaces

[NunoFelix79]

I've been working on/off on this program sense the end of last week. I haven't cut it yet, which is a good thing. But i need to cut it before i go on vaca next week 

[Guest]

Still messing with this but I have an appointment that I have to run out for shortly.....

 

I have had zero luck so far.....

 

If you ask me, this feature and the way it's designed, to be done properly, needs to be on a multi-axis machine

 

One strategy that "might" have a chance is doing those twisted channels in their toolpaths and then blending the main channel along it

[NunoFelix79]

i'm trying that now

[NunoFelix79]

So far no luck here either.