Bended plate how would you do this?  1-20  21-36

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 From:  wagurto
2173.1 
Thanks, I am new to the forum. I hope you can help me.
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 From:  Michael Gibson
2173.2 In reply to 2173.1 
Hi wagurto, welcome to the forum!

To make your shape you've got to get some outline curves arranged, here is a recording of one method:



Some various things that happen in there are - I draw a rectangle, hold down the Ctrl key and rotate (this is using the v2 beta) to make a rotated copy, position them so that they overlap and then select them both and run Edit/Trim. Right-click or push "done" at the prompt for selecting cutting objects since you want to each object with the other. Then select the pieces to remove and right-click or push done and the basic line structure is there.

Then I joined those 2 pieces together into 1 curve, and then ran Fillet to put in rounded corners at those 2 sharp points. That's actually just to trim the lines back to make some space though, that rounded arc is then discarded later.

Then move one set of lines up in Z, and select pairs of ends and do Blend to make a smooth connection between the pieces, join them all together and do Loft to make a surface.

Hope this helps!

- Michael
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 From:  Brian (BWTR)
2173.3 In reply to 2173.2 
Or, maybe, this way?

Create solid 1.
Copy/paste/rotate as see 2.
Extrude join?

Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  Brian (BWTR)
2173.4 In reply to 2173.3 
But, then, learning-- from practice----

somethings are NOT easy!
he-he!

Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  wagurto
2173.5 
Thank you guys, I see that my question was not as easy as I though....
I been trying different softwares and none of them can make this in an easy and intuitive way.
If some body else have some other ideas they will really appreciate.
Thanks
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 From:  keith1961 (KEITH)
2173.6 In reply to 2173.1 
Hi Wagurto
Isn't the easiest way to do this to draw a line and extrude it? As in line bottom right and extrusion top right.
Keith


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 From:  Brian (BWTR)
2173.7 In reply to 2173.6 
I have not looked at Michaels post because I get great enjoyment in puzzling out solutions.

This approach, if different to Michaels, could only have been done in the way shown with the current V2 beta version I think.

I hope the jpeg explains the proceedure clearly.

Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  wagurto
2173.8 
Maybe I am just being dumb here but is there anyway to just draw a extruded rectangle cut it in the middle and bend it some degrees? Like we will doing with a actual metal strap?
Thanks
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 From:  Malc615 (MALC)
2173.9 In reply to 2173.8 
Hi Wagurto.

I do not know if this what you are looking for, not exact but vaguely looks like it me!.

This is my way of approaching the problem. I created the wire frame and then used the network tool.

Then I used the shell tool to finish off.

Happy modelling.

Malc.
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 From:  BurrMan
2173.10 In reply to 2173.8 
This method was easy.

I drew a plane, then copy/paste, then rotate the 2nd plane to get angle. Join, fillet as desired, seperate, show points and move bottom 2 points to desired angle, then zoom at fillet area use object snap to reattach edges, join.

EDITED: 19 Jun 2012 by BURRMAN

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 From:  Brian (BWTR)
2173.11 In reply to 2173.8 
The combined bend/twist needs in this idea are the problems I think.
It is the apparent simplicity of the idea that is intruiging.

I doubt if, even in a poly programme, that this one would be easy.
Anyone have any comments?

It's good fun learning!

The attached may more clearly example the arc on the box face in the 3D workspace.

Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  Paolo (PAOLOLOBBIA)
2173.12 In reply to 2173.8 
Hi wagurto,

Rhino3D has a bend function
You can download a Demo from this site:http://www.rhino3d.com/download.htm
I don't use the 'bend function',because it's difficult to handle

In the picture there is my solution in Moi3d
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 From:  Brian (BWTR)
2173.13 In reply to 2173.12 
I needed to confirm that I could add volume.
Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  Michael Gibson
2173.14 In reply to 2173.8 
Hi Wagurto,

> Maybe I am just being dumb here but is there anyway
> to just draw a extruded rectangle cut it in the middle and
> bend it some degrees?

Nope - there is no function like that in MoI. In MoI if you want to make a bent shape you usually draw it with the bend built into your drawing. There are a variety of different approaches that will work, you can see a lot of different ideas covered in the thread here.

That recording that I put up earlier was a real-time recording, so that takes about 1 minute of time to draw something like that.

You do have to use a combination of tools to do that, but you should generally expect that when you want to make a shape that has elements of it that bend around in 3D, that it will take some combination of tools to make that happen.

If there was a different special tool for each kind of possible custom shape that you wanted to make, the UI would be completely overflowing with special tools...

I do actually want to add a Bend tool in the future, but there are some technical difficulties with having that kind of tool work on the kind of geometry that MoI uses. So it will probably take a while before that happens.

Maybe I'm not understanding what you are trying to do - is there a particular reason why you need a tool to do this faster than 1 minute of drawing time? Are you making a whole bunch of these or something like that?


> Like we will doing with a actual metal strap?

You may want to check out a sheet metal focused application rather than MoI, it would possibly be set up for doing those kinds of specialized things more easily.

- Michael

EDITED: 24 Nov 2008 by MICHAEL GIBSON

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 From:  Brian (BWTR)
2173.15 In reply to 2173.14 
Michael.

I have tried ot your very elegant method. Just sweet.

Have you a similar elegant way to add thickness?

(My effort is very messy)

Brian

EDITED: 31 Dec 2008 by BWTR

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 From:  Daniele (BADANS)
2173.16 In reply to 2173.14 
Hi folks, I've come up with this solution, hope it helps.
Cheers
Dan

"The darker the night, the closer the dawn."
(Buddhist Proverb)

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 From:  Michael Gibson
2173.17 In reply to 2173.15 
Hi Brian,

> Have you a similar elegant way to add thickness?

Yeah I just used Shell for that same as it looks like you are doing there.

That generates a result with constant thickness but yeah the joint part is maybe not quite right.

One way you can get more control over that is to build 2 sheets for the top and bottom parts, and then Loft do fill in the side walls. That gives you more complete control over the shaping.

- Michael
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 From:  wagurto
2173.18 
Michael thank for the reply and I am not complaing about your solution. The thing is that I am trying to model a logo that contains several of those twist and bends and have to have some precise measurements and doing it your way for a newbe sounds a lot of work. My suggestion is maybe from a complete ignorant point of view. This is what i am trying to accomplish.
Thank you again.
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 From:  Michael Gibson
2173.19 In reply to 2173.18 
Hi Wagurto, your suggestion is a good one, but unfortunately there are technical difficulties that make it difficult to create the computer code for a bend-type modification tool on the kinds of objects that MoI works on.

So that's why you have to construct the bent object out of individual pieces similar along the lines of what is shown above.

Do any of the above techniques give you a way to build your object? Or are you still stuck?

You basically need to build it piece by piece, using one of these techniques. I mean build a straight part, build a bent connector part, boolean or join pieces together, and it looks like you want to then put fillets on it at the end to round the corners.

You can probably build one segment and duplicate it.


There just isn't any method available in MoI to start with one long strip and bend it around to get that result, sorry! It has to be built in pieces.

- Michael
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 From:  Brian (BWTR)
2173.20 In reply to 2173.19 
Michael
Sorry to be dragging this on. Following your method-----

I can not get the original to Shell?

I am quite proud of the outer layer I produced as you suggested but I can neither get an effective loft between the two or an edge sweep?

Brian

EDITED: 31 Dec 2008 by BWTR

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