I now know I could create a cross section, extrude it and then put the holes in, but Im sure I must also be able to start with a solid and remove an edge.

So, if the chamfer is small enough then I usually use sharp tipped chamfer tool and wider chamfers I do with balls or bullnoses. I don't have indexed chamfer tools.

Hi Luca - no that hasn’t been implemented. I’ve added your request to RH-26549. In the meanwhile, you could try the ChamferSrf command that allows you to use two different distances. -wim

I have no chamfer options in 2D Contour? Also which edges would I select? My knowledge of CAM is very brief and I just recently learned of it.

Indexed chamfer tools sometimes have flat bottom and they are able to cut with their whole width. They can also be used to cut wider chamfers than the tool width (in steps, of course, top down).

For a symmetric chamfer, you can use the command ChamferEdge. Unfortunately, this command does not allow asymmetric chamfers as per your image. In that case, you can use the command ChamferSrf between two surfaces, this is not a “solid” command, so it will leave your object open and some areas will need additional trimming. One way to work with this is to use it with Trim=No, and then use the resulting chamfer surface to trim all the others and then join all up. Or you can try using BooleanSplit with the chamfer surface created and the block, then delete the unwanted part and the surface.

I usually find that 2D Contour does the trick for hole chamfers. If you have a chamfer tool selected then you will see the Chamfer settings in the Passes tab of the operation. You can also use the Multiple Finishing Passes to take numerous cuts on larger chamfers.

What I do with object that don’t want to work with a chamfer, is use a boolean difference, so I just make an object, in the correct shape, then cut the object out of your main object.

Additionally, Using a curve/line, or a surface, you could even use the Trim option, select the line/surface to use it as a cutting object, then click the part of the your object you want to have deleted. Then you need to close the object still though.

I deal with sheets of material of constant thickness which are cut to different shapes. The border need to be chamfered say to 1:2 ratio or 25 degrees, NOT 45 degrees like symmetric does. Sub Object selection or wire cut are not useful here.

I'm having trouble figuring out what to use to mill out chamfered holes. 2D contour doesn't seem to work as well as 2D chamfer. Would like some help on a straightforward way to mill out these chamfers.

Another really easy way would be to use chamfer with the size of one side and move the edge manually. Sub object selection makes this a breeze in V5.

In this particular case, because it is a straight cut, drawing a line at the angle needed- oversized - too long- is probably best - and WireCut may be a simple way out.

I’d snap a line onto your cube defining the chamfer and use wirecut, setting the cut direction with the command line option.

Chamfer tools that have sharp tip are able to cut chamfers that have width of abt 30% -40% of the tool diameter. This is because the very tip does not cut very well (small diameter => small surface speed). E.g with a 6mm diameter chamfer tool I usually cut chamfers max 2mm wide (maybe 2,5mm max). Also the shaft-part does not usually cut at all; it has not relieved flutes.

I tried out the 3D contour and somehow it worked out and knew what to do? Good tip with the stepdowns makes the simulations much better. Have you tried doing this with chamfer bits?

Old post but look like Solid chamfer is still available as symmetric only? I would like to know if a chamfer by distances or angle command has not yet been added.

Hi, I am very new to this program. I just bought it a few days ago. I have to make an asymmetrical chamfer just like Jon, however my object’s edge is not straight but tapers on a slight angle. So, if I create a solid to do a boolean split, the extruded object does not follow the tapered edge…ugh…how to do this?

I have milled chamfers with (3D)Countour and bullnose (or ball) toolbit. Eg. 0.3mm radiused toolbit and 0.1mm stepdown produces fairly smooth chamfer. If surface is not critical then I have also used normal (sharp-edge) toolbits. Depending on application 0.1mm steps in the milled surface might be perfectly ok.

I have attached a screen capture of what I want to do - the red bit is the shape of the bit I want to remove from the main block.