Suface finish contour help

[Racer X]

I have uploaded a file called "1.25inch inserts.mc9" into the MC9_files directory on the FTP site. Can someone take a look at it and tell me where I am going wrong on operation 3. I am attempting to finish most of this pocket with a .625 bull endmill with a .0312 corner radius. I will then finish what is left over on the bottom radius with a .250 ball. I have done two other sizes that worked wonderfully and left me the desired finish. However, on this part it wants to do a bunch of z plunge moves until it gets well down inside the cavity rather than just circular interpolation moves with a step down each time.

 

Thanks in advance.

 

Moto teh frustrated.

[Allan]

The check surface is what was causing fits, there is no need for a check surface here.

The cut depths are your friend you should use them.

.002" step down is pretty fine you would be better off with a ball tool and a larger stepdown IMHO.

 

I've placed my attempt back in the same folder 1.25inch inserts_AB.mc9

 

HTH

Allan

[Racer X]

Thanks Allan! That did the trick. I would have used a ball mill had UPS delivered them on Friday like they were supposed to. I am attempting to get these out for texture on Tuesday so you really helped me get ahead, and on a holiday nonetheless! Your help is greatly appreciated.

 

Cheers,

Lonnie

[Lee.]

Sounds like Allan has you in teh right direction.

 

One thing I would add, seing as I use this toolpath constantly.

 

Use a boundary to keep the tool inside the pocket, and like Allan said use your depth cuts, I prefer Absolute, this way keep keeping the first cut inside the pocket.

 

HTH