Knife blade sweep

[info89XP3]

Hello everyone, first post here.
I'm a self taught newbie Fusion user and I've tried to use the search button before asking but none of the 20+ articles I've read seems to match my issue.

I'm trying to bevel the blade of the knife I've attached but the usual method of building a profile to sweep along a path doesn't work here, as the blade is wider at the middle and I end up with a portion cut away.
My goal is not to follow the blade profile for the bevel but to have them match the 2d design, basically going along the "bevel line" on the top.

Also, the swedge should follow the arc on top that gets to the tip.
Tried with the path + guide rail too but I must be doing something wrong as an error message saying a lot of random different things keeps appearing with every combination of option I select.
It's something I can easily achieve free handed on the belt, but I need it to be "machinable".

Hope someone here can point me in the right direction, learning how to use the sweep command would really help a lot.

Thanks in advance,

Matteo

[programming2C78B]

Just a brainstorm here:

You can pocket out the bevel shape, rebuild it with a chamfer tool

you can then do 2 sweeps to cut the "humps" out on either side

Or think of it the other way:
start with a normal sweep that matches your profile

and then add a shallow sweep for that segment that flattens out the rest. 

[info89XP3]

Thank you very much for the very swift reply.
I'm gonna try your solution in the morning and then eventually mark the thread as solved.
My doubt is about the shallow cut tho...
How do I draw a profile to sweep from what the first operation leaves behind if the shape that I have to "cut away" is the same as the first bevel I need to make?

Basically I'm just moving the problem to a smaller portion of the blade.

Or is it me that didn't understand your suggestion?

I've made another blade with the same shape but it was beveled completely so I managed by drawing a guide rail on top, but here I need to leave a portion of the blade flat, hence the issue.

Again, thank you for your help.

[davebYYPCU · Accepted solution]

Couple of ways to get there,

you need a Loft(ed) surface body cutter for either a Boundary Fill > cut,

or Split Body > Remove

Then Cut the outline if required.

Not going to comment for Manufacture > Setup.

Might help...

[info89XP3]

Thank you much, I thought as much and tried with a loft putting planes and profiles for cutting all along the edge where the arc meet and using the edge and the bevel lines as guide rails and it worked perfectly, so I'm very happy to see you, an expert user, proposed the same solution.
Also, sorry for the delay, been busy.
I'll mark your reply as accepted solution so to close this thread, but thanks to the everyone who took his time to reply so swiftly and help me.
Very nice community indeed!

Best regards,

Matteo

[info89XP3]

Just a quick add:

Extruding the swedge like you suggested won't work (unless I totally misunderstood your idea here) as it'll leave a "step".
Managed with a split cut despite it not being exactly what I intended, but it works for now.
Need to find a way to loft through 2 different planes so to remove a "lemon wedge" shaped portion at the thickness I need, as if I was working on the wheel.
But that's for another thread eventually.

Best,

Matteo

[johnsonshiue]

Hi! I think Solid Sweep can help this case. Create a cone body like the machining tool. Sweep it along the path.

Many thanks!

[davebYYPCU]

I am confused - talking to me?  I didn't sketch any new sketches.

The Extrude Cut was to conform to the sketched blade outline after the bevel if desired.  Will leave a step?

The finger groove to open, close the blade is a simple Revolve > Cut - partial angle.  Similar to @johnsonshiue solid body flipped 180 degrees and Combine > cut.

My question is where to put it?  As your blade bevel line is not the same as the canvass.

Might help...