topic Re: Concave a flat surface in Fusion Design, Validate & Document Forum

Concave a flat surface

BLD-Designs — Thu, 17 May 2018 15:10:46 GMT

Searched around Google for a bit, found no good solutions.

How do I make a flat area in the pic concave?

Re: Concave a flat surface

jodom4 — Thu, 17 May 2018 15:24:56 GMT

Use the Fillet tool (in the Modify menu) on both of the side edges at the same time. This will give you fillets and a concave surface.

Re: Concave a flat surface

TrippyLighting — Thu, 17 May 2018 15:32:19 GMT

While @jodom4's answer might be why you re looking for, "concave" can mean a lot of things and there are a number of techniques to address that.

Re: Concave a flat surface

SaeedHamza — Thu, 17 May 2018 15:59:37 GMT

Here is one way to do it

Re: Concave a flat surface

TheCADWhisperer — Thu, 17 May 2018 16:56:26 GMT

Are you looking for a Revolve-Cut to provide clearance for a roller/wheel to be mounted between those posts?

Do you have a picture or link to a similar object?

Can you File>Export and then Attach your *.f3d file here?

What is the meaning of life?

Re: Concave a flat surface

BLD-Designs — Thu, 17 May 2018 19:22:41 GMT

Yes that is what I'm looking to do

Re: Concave a flat surface

TheCADWhisperer — Thu, 17 May 2018 20:15:26 GMT

I noticed that Sketch1 is not fully defined or making use of obvious symmetry about the Origin.

If I provide step-by-step modeling instructions, would you be willing to start over from the beginning?

Re: Concave a flat surface

BLD-Designs — Thu, 17 May 2018 20:44:18 GMT

Sure. The model only took me 5 minutes

Re: Concave a flat surface

TheCADWhisperer — Thu, 17 May 2018 23:04:00 GMT

Start a new part file.

Sketch the 3 rectangles as shown.

Note the position of the Origin.

Attach the file here for the next logical step.

Here is an image of the three rectangles without the dimensions - note the included vertical Construction Line.

Re: Concave a flat surface

BLD-Designs — Fri, 18 May 2018 01:09:40 GMT

OK next

Re: Concave a flat surface

TheCADWhisperer — Fri, 18 May 2018 11:49:32 GMT

I am trying to demonstrate to you a rock-solid robust modeling technique sometimes referred to as the BORN Technique. (Base Orphan Reference Node)

A foundation to the BORN Technique is logical instructions.

You completely missed one of my instructions.

Re: Concave a flat surface

BLD-Designs — Fri, 18 May 2018 22:12:03 GMT

Sorry being a 50 yr old, I didn't think I need someone to check my work

Re: Concave a flat surface

lichtzeichenanlage — Sat, 19 May 2018 08:17:12 GMT

@BLD-Designs: I am 48 years old and hope that in two years' time I will still be smart enough to know that you can still learn new tricks.

Re: Concave a flat surface

TheCADWhisperer — Sat, 19 May 2018 14:08:17 GMT

@RC-CnCwrote:
Sorry being a 50 yr old, I didn't think I need someone to check my work

Well, I'll be 61 in a month. In the previous 60 yrs (30yrs using CAD) I have learned to verify everything.

First thing I noticed is that your sketch is blue while the image of my sketch is black.

This indicates that your sketch is not fully defined.

Here is one example. I probably would have done as one side and Mirrored, then added the Counterbored cylinder and hex... ...but for what it is worth - turn on your sound.

Re: Concave a flat surface

BLD-Designs — Sat, 19 May 2018 16:36:30 GMT

Thankyou very much for your time. I have not been using Fusion 360 that long

Yes that is what I am trying to accomplish. Basically a relief for a pulley

I'll work on an sketching using an origin plane like your example. It's an interesting way of creating a model.

Please let me know if the attachment is correct