Fusion 360 chamferEmpty toolpath

I understand what you are saying and what I had shown is a mere workaround. Here’s a variation that might help. Occasionally I will make a part semi-transparent to help me when performing a desired result. Interesting phenomenon is that the area where the Subtract took place ends up being semi-transparent, which by the way can be useful in certain circumstances.

You can determine a precise measurement if you use the method that @KPeter suggested. If you want to specify the diagonal dimension then you need to divide that number by 1.414 and use it as the offset for the chamfer. (Example: a 0.5" diagonal dimension would require you to use a chamfer of 0.354" x 0.354".) The beauty of using Peter’s method is that you can change the angle of the chamfer to be anything other than 45° if you like. The 2nd half of the video shows Peters method.

Chamfer fusion 360download

Here I put together a way for you to measure the chamfer at the center of the arc. In this example I chose a 0.5" x 0.5" chamfer. Therefore the diagonal dimension is 0.707". The Scale method does a nice job of bringing the ends to a point however it also scaled down the center diagonal as well. The ends are not exact but can be adjusted close by tweaking the scale number as I did in my example making it 59.7%.

Chamfer fusion 360tutorial

I tried…… I followed, or as closely followed as I could, the video. Here’s the end results: something kinda what I want……but again, it’s not a MEASURED chamfer. [insert crying icon here; get out Fusion 360]

I “think” what you did was ONLY scale on the bottom line of the chamfered edge, correct? I “think” I got it, or very close to it.

Fusion 360 chamfernot working

But I did think that you could create the “cylinder” by copy/moving the curves from the side of your original guitar body sketch and using that as the curved edge. Once you have this curved line, add a chord between its ends to create a closed shape you can extrude upwards, rotate around an axis passing through the curve ends and lower onto the guitar body for your subtraction.

FilletFusion 360

YES —- I saw previous posts; but these only show how to taper a chamfer on one end. I figured out how to scale ONE end and have the chamfer trim down to zero (see screen snapshot); but I want the chamfer to taper down on both ends.

I do want to say to the Sharpr 3D folks monitoring……… we need a work around here. This is a sort of work around, but it’s not MEASURABLE; that is I’m cutting a shape with another shape, but I can’t measure and get the “cut” or the chamfer I want.

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Each side of the instrument is unique. My gut feel /guess is that I’m drawing a circle, that’ll extrude to make the cylinder……but I’m not certain how/where to draw it?

So I suspect because my curve is NOT symmetrical - but the scale here doesn’t work. You can see the pic below. Now I’m kind back to square one……

Fusion 360 chamfervs fillet

Fusion 360 chamfertoolpath

Thank you - the finished product is what I want. I’m not sure exactly how to get the cylinder positioned exactly where I need. I guess I can try to play around [more time]. I realize a tapered chamfer is rather complicated, but for a CAD tool it doesn’t seem too odd.

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Great! Nice to hear. Question: Does this meet your requirement as a MEASURED chamfer? If so, where is it measurable? Thanks.

Here’s a possible workaround. I subtracted a cylinder that was angled at 45°. The radius of the cylinder is smaller than the radius of the contoured part you wish to have a tapered chamfer.

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Hi, FIRST……Thank you for your reply. secondly…… how specifically did you SCALE and get those results (a crescent or semi-circle with tapered ends, and a chamfer in the middle) ???

Hi, I have a curve (part of a guitar body); and I want a deeper chamfer in the middle of the curve, and then I want it to taper on both ends of the curve.

I kind of don’t want to redraw my whole body, and make it TWO bodies; because in the end, I’ll 3D print it, and I need it to be one body.