Dynamic Core or Area

[Hertz]

Ok for some reason i can't get a simple toolpath to work properly. Not sure what I am doing wrong. All I have is a 4.5" hole that needs to be machined out. i start with a 2.5" drill so basically there is a pilot hole of that size. I drew some geometry for the 2.5" hole and I can do area no problem by chaining the outside (4.5") however it cuts air (thinks the middle is still there). So I'm trying to get it to start at the 2.5" diameter(pilot hole). I tried different chaining methods and both core and area to see if I can get it to go but clearly I'm not chaining right. What I'm doing is chaining the 2.5" arc and the 4.5" arc as my machining region, then I have the 4.5" as my avoidance region. I try to generate a toolpath but it fails. I then tried adding the 2.5" arc as another avoidance region, still nothing. Help please, lol.

I suspect the path would have to be Core seeing as I need to start outside of the machined parameters but if I add an avoidance region, it fails. If I don't ad the avoidance region, it cuts outside the 4.5" diameter.

CIRCLE.MCX-7

[Guest]

Use area but draw an area where your tool can come down that is not in the stock and use a 90 degree plunge

 

Think of Core as a collapsing type outside in cutting and area is pocketing on steroids

[CJep]

You can't use the same geometry as a machining & an avoidance region, it will create a null toolpath.

 

The high speed area mill tpath should work, use the 4.5dia as your maching region.

Create an arc inside the 2.5 that allows for the radius of your cutter use that as the avoidance, it will be treated as an island.

Use the 2.5dia as the entry chain, you should be able to set it as a ramp entry.

[Hertz]

Ya I am not using the same geometry. Its in the same place but translated 1/2" above. Is that still considered the same geometry? I attached the file for easier diagnostics.

Paris I looked at your sample. I understand what you did. However is there a way to have it pocket from inside the 2.5" area and machine out in a circle to the 4.5"? Basically that is what I'm trying to do. Perhaps the dynamic toolpaths are not what I should be looking at?

[Guest]

Yes use a Blend tool path

[Hertz]

Ahhh. Nicely done. Thank you much.

[crazy^millman]

What I have done is taken the Peel mill toolpath and divided a shape like that in halves. Then pick one side for one operation picked another side for the other operatiosn and done. Getting to here I have done a Circle mill to my start point on the 1st one and just go from there.

 

HTH

[GF8er]

Dynamic rest works. Chain the 4.5 circle and then select the drilling op as your rest operation.