How can I resolve this error: Error: (ensureCutRadius > 0) and (ensureCutRadius <= cutterRadius)
The machining operation is a 2d pocket where the red arrow is located. The toolbit is a .25in ball end mill. For scale, the round pocket above the arrow is .5in in diameter. I've tried using values from .001 to .124 for the Minimum Cutting Radius with no success. A similar pocket on the reverse side does not have the same problem.
ETFrench
Why are you trying to use a tool that's only just half the size of the pocket, and a ball mill at that? It seems odd. You might get it with a 3D Pocket, because it would lift the tool to suit the model where possible.
Scott Moyse
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RevOps Strategy Manager at Toolpath. New Zealand based.
Co-founder of the Grumpy Sloth full aluminium billet mechanical keyboard project
The larger the ball mill, the smaller the cusps. It's not necessary to model the fillet in this case. I'm more interested in finding out what the error means and how to correct it. Changing the operation type is a valid workaround, but doesn't answer the question.
ETFrench
Scott Moyse
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RevOps Strategy Manager at Toolpath. New Zealand based.
Co-founder of the Grumpy Sloth full aluminium billet mechanical keyboard project
Sorry, but I don't think that's the right interpretation. The pocket is larger than the tool bit in both X and Y axes. In fact, changing to a .125 ball end doesn't fix the error.
ETFrench
Scott Moyse
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RevOps Strategy Manager at Toolpath. New Zealand based.
Co-founder of the Grumpy Sloth full aluminium billet mechanical keyboard project
I misspoke earlier when I said the same operation worked on the bottom. The working operation was 2d adaptive instead of 2d pocket.
The model has changed slightly from the original, but the error still exists.
ETFrench
There are a couple of issues with the way you have things selected. The first is that you selected a face instead of the edge. This is one of the issues with fusion right now that the developers are working on. You should be selecting edges.
The second issue is that the face you selected is outside the stock you have defined so even if you hade selected the boundary correctly you mostly likely wouldn’t have gotten a tool path.
I can get a toolpath like that if I use a flat end mill. When I change the tool to a ball end I still get the cutterRadius error. I don't understand the error message or how to correct the toolpath to eliminate the error while using a ball end mill.
ETFrench
@jeff.walters wrote:
The first is that you selected a face instead of the edge. This is one of the issues with fusion right now that the developers are working on. You should be selecting edges.
The second issue is that the face you selected is outside the stock you have defined so even if you hade selected the boundary correctly you mostly likely wouldn’t have gotten a tool path.
@jeff.walters are you saying that you can't even select a face in the bottom of a pocket for a 2D pocketing operation? Even though it works most of the time, and this is the first time I've encountered not being able to do that?
Also the Stock isn't a factor in this error. I replicated it with a really simple 3-axis dataset. Extruded rectangle with the pocket & tool diameters shared in the OP., then a default setup.
Scott Moyse
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RevOps Strategy Manager at Toolpath. New Zealand based.
Co-founder of the Grumpy Sloth full aluminium billet mechanical keyboard project
etfrench wrote:
I can get a toolpath like that if I use a flat end mill. When I change the tool to a ball end I still get the cutterRadius error. I don't understand the error message or how to correct the toolpath to eliminate the error while using a ball end mill.
You need to enable Allow Stepover Cusps
Then it generates.
Mark
Mark Hughes
Owner, Hughes Tooling
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Scott Moyse
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RevOps Strategy Manager at Toolpath. New Zealand based.
Co-founder of the Grumpy Sloth full aluminium billet mechanical keyboard project
I've attached the file, I cleared all toolpaths to reduce size so you'll have to regen.
Mark
Mark Hughes
Owner, Hughes Tooling
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From a brief investigation, I think one issue is that you have two selection with different orientations in the same 2D operation. I would suggest splitting it into two different operations and set the tool orientation aligned with the selected surface in the second of the operation.
I've attached a new version of your example file where I do this.
I missed the date on the original post, just saw that the thread got a lot of views recently.
