topic Re: Why cant I create a rib in Inventor Forum

Why cant I create a rib

drawings_bemcopvt — Wed, 21 Jun 2023 10:05:32 GMT

With regard to attached part file, why can't I create a rib for "Sketch3", or how do I create a rib.

Edit:

I have also attached the part which I was trying to draw. Only the rib feature is remaining.

Jatin

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 07:03:59 GMT

there are many options here

1. make a 3D sketch

2. make a surface area

3 make the thickness

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 07:12:47 GMT

1 plane between two faces

2 2d sketch

3 extrusion

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 07:26:45 GMT

1.2d sketch

2. extrusion

3 plane by 3 points

4 split

Re: Why cant I create a rib

drawings_bemcopvt — Wed, 21 Jun 2023 07:48:50 GMT

I also thought of extrusion, but the bottom side does not blend with the slotted projection. It is straight, while the slot projection is circular. There remains a gap between rib and the bottom surface.

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 08:24:57 GMT

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 08:34:40 GMT

1.cut to the top of the ellipse

2. cut to edge

Re: Why cant I create a rib

89198826955 — Wed, 21 Jun 2023 08:51:20 GMT

if necessary along the contour

3d sketch and loft

Re: Why cant I create a rib

Alexander_Chernikov — Wed, 21 Jun 2023 09:18:01 GMT

When used the loft - will not have a flat top face at the Rib.

Alternatively, you can provide a small gap (depending on the radius of the cylindrical face and the width of the rib) when you sketch the rib axis.

Re: Why cant I create a rib

drawings_bemcopvt — Wed, 21 Jun 2023 10:22:57 GMT

I have edited my question to include the drawing figure. You can see that it is a simple rib which ideally should be designed in inventor by using the Rib feature. Hence, I would like the respondents to suggest a solution using the "Rib" feature.

Re: Why cant I create a rib

JDMather — Wed, 21 Jun 2023 10:28:19 GMT

@drawings_bemcopvt

The figure is incorrect - hand drawn art created before the days of CAD.
The logical solutions are obvious when you attempt to 3D model (or go out to the shop floor and attempt to machine the art version).

Back early in my career (in the last century) I was working on the shop floor as a machinist. I got a drawing like this (but starting from a casting) and at first thought I had scrapped the casting when it didn’t look like the drawing. Only after some logical thinking 🤔 did I realize that the drawing was wrong.

Re: Why cant I create a rib

drawings_bemcopvt — Wed, 21 Jun 2023 10:48:18 GMT

@JDMather ,

In that case I will close this question. I have just began to learn inventor and this figure was a part of my learning process and relatively unimportant.

Jatin.

Re: Why cant I create a rib

JDMather — Wed, 21 Jun 2023 11:29:23 GMT

@drawings_bemcopvt

Your first sketch is all wrong.

Do you want to learn how to use Inventor correctly?

Edit Sketch your Sketch1.

Click and drag various points/lines around the screen.

What do you observe?

I observe numerous missing geometry constraints (which should be automatic).

Also - I recommend that you go to Autodesk - Account

and download the Updates for your version of Inventor.

@drawings_bemcopvt

We can go step-by-step through correct modeling proceedure.

Re: Why cant I create a rib

johnsonshiue — Wed, 21 Jun 2023 23:45:27 GMT

Hi! The rib in this case cannot go for the full length. Or it will alter the circular edge at the top. The rib sketch needs to offset inward a bit.

Many thanks!

Re: Why cant I create a rib

drawings_bemcopvt — Thu, 22 Jun 2023 12:42:01 GMT

@johnsonshiue

I made the sketch line a bit offset at both ends, still inventor won't create the rib.

Jatin.

Re: Why cant I create a rib

Alexander_Chernikov — Thu, 22 Jun 2023 13:31:56 GMT

You should pay attention to 2 options for Rib:
the position of the Rib relative to the sketch plane and the direction of creation of this Rib.

Watch attached video

PS.: Check that your coordinate planes coincide with the planes of symmetry of the part!

(view in My Videos)

Re: Why cant I create a rib

JDMather — Thu, 22 Jun 2023 14:08:20 GMT

@drawings_bemcopvt wrote:

@johnsonshiue

I made the sketch line a bit offset at both ends, still inventor won't create the rib.

@drawings_bemcopvt

No new file Attached?

Do you want to learn how to do this correctly?

Re: Why cant I create a rib

89198826955 — Thu, 22 Jun 2023 19:08:46 GMT

I want to learn right

step by step

learn to do better

can you help me?

e-mail for communication xxx-xxxxxxxx@mail.ru

Re: Why cant I create a rib

JDMather — Fri, 23 Jun 2023 09:35:19 GMT

@89198826955

What version of Inventor are you using?

Can you Attach the *.ipt of your attempt to model the geometry?

Re: Why cant I create a rib

89198826955 — Fri, 23 Jun 2023 17:45:12 GMT

inventor 2024

I created a "step by step" theme

put the assembly and drawings there