I always have trouble with parallel and cant suss this one.

[boyd.sofield]

Would it be a nice operation if we can carry out a parallel op without having to extend faces to stop the tool from dropping down each side in non necessary tool paths? I guess what I am saying is its never easy all the time. Even just an extension off a plane would be a good start.

Regardless. This part as simple as it is has taken a lot of work as it sticks out from my vice a LONG way. I am still working on the operations and am being super cautious to take small bites, starting at the very extent to retain some rigidity as the stock dissappears.

This post though I cant understand the last parallel operation seems to miss a portion of the surface leaving a triangle of stock. I dont know why because its not making sense, need a bit of help? Image attached is what I get in simulation it just totally misses a section. Weird? Yes

Oh, another question on parallel. I have a surface in the Y direction cutting in the X direction. I want the tool path to start and work in the negative direction towards the vice. This op starts at the vice and horizontal moves away from the vice. I cant work out how to change that? I tried a preferred entry point, Fusion just ignored it. Hmmmm

[a.laasW8M6T · Accepted solution]

Hi

To change the Direction you can just flip it 180 degrees in the pass direction

I regenerated the toolpath without changing anything and it machines the whole surface

I'm not sure why it was missing bits for you

regen after importing

Direction flipped 180

[programming2C78B · Accepted solution]

Use this tool on your top curved face, and use an offset distance of 0.

then use this one on THE NEW BODY's edges by ~1/4 your ballnose diameter.

before:

after

You then select this new Body in your toolpath under "Model"

[boyd.sofield]

Hi guys. Thanks for this I have found this part REALLY challenging! Have managed to get the tool paths sussed, now I need to go through somehow to stop the tool from plunging or crashing into the stock on a few of these ops. But I will eventually.... lol.

Best regards

[programming2C78B]

You should be roughing everything out with a regular endmill and 3D adaptive beforehand.