Round over or Ogee on Shapeoko using Carbide Create?

Software Carbide Create
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Box Lid.c2d (208 KB)
most recent file

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That file only has a 3D Finishing toolpath:

image
image1920×1152 266 KB

You’re going to have a rough time if you try to cut w/o a 3D Roughing toolpath first.

Please see:

https://carbide3d.com/hub/courses/create-pro/3d-toolpaths/

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You said “you shouldn’t need multiple 3D roughing Toolpaths for a single model” so I took this as not to use the roughing Toolpaths…

So how do I do this properly ? I am not understanding how to set these toolpaths up

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Your original file had 2 3D Roughing toolpaths — I was suggesting removing 1, and the screen grabs I posted reflected that.

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Misread… by “don’t need multiple” he meant “only need 1” :wink:

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so only one of the Toolpath rectangles need to be selected ? If so why was I told to make two rectangular toolpaths as above ?

Also for the roughing what size and kind of end mill should I be using ?

Were the settings for the 1/8" ball nose for finishing or roughing ?

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You had multiple toolpaths cutting the same thing. One rough toolpath should remove all the material & get you close enough for finishing.

For roughing, the largest endmill your machine will handle & that will get enough material cleared depending on the level of detail.
Same rule of thumb for finishing, use the largest ball mill that will get into the detail you need.
The larger the ball mill, the smaller the scallops and you can use larger stepovers to reduce cutting time. :wink:

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There’s a whole lot of good information on this thread…
However, with CNC, sometimes there is a tendency to overthink all of it. The preview doesn’t have to show you what you know will happen. Don’t allow the preview and it’s limitations unnecessarily complicate your project.

A roundover bit would give the correct look. @Redlander nailed this. A discussion of timeconsuming 3D approaches primarily designed to get the simulation to reflect the practical shape followed.

An offset contour, run with “No offset”, will create the look. As to the corners exact shape, do some testing. Then apply the suggestion of a contour line that extends beyond the box top in X and another that does the same in Y.

The 3D tool is a useless waste of time for this desired outcome.

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