[billsnogo]

Hi all, I am having trouble getting a simple angle roughed out with an end mill, it will just not go all the way to the end of the part, unless I choose "3d extents", and when I do it rounds the edges which I do not want. I have attached the file, what am I doing wrong? I want this part to rough going from bottom up on the angle in a flat back and forth toolpath.
thanks to anyone who can send me in the right direction.

[jrmach]

You must be newer than V28,,can't open

Is it possible with your particular design to simply extend surfaces and fake the software out ?

[billsnogo]

Yeah, v29. I can build the solid out to have it go far enough out, just was hoping there is an easier way as I have a bunch of parts to make (all different) that will need to be rough milled in the same fashion.
thanks

[magicniner]

Doesn't V29 still have the "Extend Surface" function?
In V25 I un-stitch the surface from the solid, make a copy on a new layer and extend the surfaces of that.

[BurrMan]

You can drive it with a boundary too...

https://youtu.be/xmaORlls_kE

[billsnogo]

You can drive it with a boundary too...

https://youtu.be/xmaORlls_kE

I though the boundary was to keep it inside an area, learned something new. I tried what you did and still got it to curve over the edges with my current file, but unzipped the file I have on this site and did exactly what you did and now it is pretty dang close to what I had been attempting. Thank you all, I will need to practice this a bit more on the other parts and see if my success rate improves. Glad to have all you guys on this site to help people like me out

[BurrMan]

Select the toolpath that allows it to go to where you want, the boundary needs to limit it's ability to "drop off the corners or edges you don't want it to"... So you can draw ANY boundary, it just has to allow the surface to be cut by the tool, but not give enough room for it to go where you don't want...

[Malish]

If you don't want it to drop past a certain point then use the depth options and set a bottom of job depth, this will make it so the tool path will not go below that distance.

[BurrMan]

If you don't want it to drop past a certain point then use the depth options and set a bottom of job depth, this will make it so the tool path will not go below that distance.

The issue was to drive the toolpath DOWN FURTHER without rolling the edges... FYI