Nebie question for rounding edges

[Dezmond]

Hey All.. I AM HOOKED!!!! Love the CNC hobby and also CAMBAM.  Easy to use so far. I have even cut out some 2D stuff with it no problems.

I make custom knives as a hobby as well. I would like to cut out my handles on the cnc so I can cut back on a  lot of the rough work.  The question I have is I would like to be able to have a nice round/curved edge on the left and right handles.  Can this be machined in CamBam?  I guess it may be called a fillet as well?  Attached are some knives that I am talking about.  You can see the nice rounded edges on the handles. 

Any ideas would be great!  Thanks all and look forward to haning out here!!!

Dezi

[EL34]

yes, you can cut shapes like that.
Well, at least get a rough shape that will save you a bunch of rough shaping.

It takes a ball nose bit to cut that kind of rounded shape, and it takes quite a while because you have to have a small cut width and overlap.

Some of the other guys that have done 3D work can give you more details on exactly how to go about it.

[10bulls]

Here is a quick file I put together using the SideProfile property of 2.5D profiles.

The basic settings are:
Use an Inside profile.
Under the SideProfile property group, specify Method = ConvexRadius and under the Value property, enter the radius.

Usually this would result in the radius curving in and down - a bit like the curve on the inside of a donut.
To get the curve to go in and upwards, make the radius a negative value.
The combinations of inside / outside, positive and negative radii can get confusing.  I plan to replace this with some more graphical options in later releases.

The other setting to make note of is the SideProfile - AdjustCutWidth property.  When set to true the side profile will clear all the layers above the profile.  You would set this to true to rough out the stock, then maybe use another profile with a finer depth per pass and AdjustCutWidth set to false, for a finishing pass.

Nice knives!  Are they yours?