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I'm having a heck of a time getting a .25" tool to machine a .351 wide cavity. The attached images explain it better than I can. I believe it as something to do with the tool not being able to adaptive around the corner. If you look at the sim and the tool path, you can see it has no issues until it reaches the corners where it has to raise the toolpath in order to machine the cavity on the end. Its necessary for me to leave .024 stock in both axial and radial, so changing those values cant be part of the solution. Any advice on how to fix this is appreciated. The attached model is only a section of the model I'm working on.
Solved! Go to Solution.
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Hi @sharmstr
Thanks for posting! I took a look at your model and noticed you had a value in the Minimum Cutting Radius on the Passes tab. I think that was coming into play on those small radiused internal corners. When you set the value to 0, it cuts much more nicely.
Let me know if this helped you out!

Amanda Fowler
Technical Support Specialist (CAM / HSMWorks)
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First, thank you for answering while everyone else is at AU2017 belly up to the donut bar ![]()
That fixed it. Thank you!
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Hahaha, no problem - I'm glad that fixed everything up for you!

Amanda Fowler
Technical Support Specialist (CAM / HSMWorks)
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Just wanted to give you a heads up that often times, a smaller diameter tool can outperform a a larger tool in these circumstances, dependent on the machine acceleration and deceleration rate, It would also eliminated your tight ares i issue as well. I have found that a good rule of thumb for this is half the small cavity for your tool size
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Thank you. I have considered that but was concerned because I'd have to use a long reach em and the material is steel. Maybe my concerns aren't warranted.
Fusion