topic Re: Cutting a part of a profiled sheet. How? in Modeling

Cutting a part of a profiled sheet. How?

Anonymous — Fri, 16 Oct 2009 08:31:19 GMT

I want to cut a part of my profiled sheet. Take a look at the picture:

image

How can i do that? Just to add, that the cutted part needs to me round (it is a part of an circles arc).
I tried using Solid Elements operations, and intersect my profiled sheet with the wall in a shape of arc, and then tried to extrude (just extrude, and with downwards, and upwards extrusion) but as i though so, i didn`t worked (it worked in a way that the part of the profiled sheet where it intesects the wall, was extruded, and i wanted to extrude it in that area plus the whole left part).

How can i do this? Please help.

Thanks for the reply.

Re: Cutting a part of a profiled sheet. How?

Anonymous — Fri, 16 Oct 2009 19:40:40 GMT

I don't understand what you are trying to do, let us break it up into 2 problems:

What shap are you trying to achieve? The floorplan show a rectangle piece of sheet, from which you want to cut off a triangular piece. Yet in your post you said you used an arc? Please post a 3d image.

SEO did not work? Why not draw a piece of slab (on the SEO operator layer) with enough height to remove the triangular shape (then hide the slab)

Re: Cutting a part of a profiled sheet. How?

Erika Epstein — Fri, 16 Oct 2009 20:18:43 GMT

You can use the marqui to cut the profiled sheet. Magic-wand it to the line-work that outlines the shape you want left.
Then save it as a library part. View this in the 3D window from the angle you will place it and then save as a library part.

Re: Cutting a part of a profiled sheet. How?

Ralph Wessel — Sat, 17 Oct 2009 15:44:08 GMT

nedostizni wrote:
I want to cut a part of my profiled sheet.

That object has parameters to the angle of the cut to the end - see the illustration to the left of the attached image.

If that doesn't provide enough flexibility, take a look at OBJECTiVE. You can cut any GDL object as many times as you like, and it looks good in 2D and 3D (and it's very quick):

1) Use OBJECTiVE > Tools > Split and trace a line where cut is required
2) The offcut can be retained or deleted as required. Note that the split objects have all the same parameters etc as the original.
3) And of course the split objects look fine in 3D

Re: Cutting a part of a profiled sheet. How?

Anonymous — Tue, 20 Oct 2009 07:53:22 GMT

I can`t post an 3d image right, now, because of some problems with my PC.
The cutted part is not a triangle, as a side of a profile sheet that needs to be cut is curved (as a part of an arch, with large radius), not lineal. For better understandment, i realy need to post an 3d image, but i can`t do that right now (because of the problem i posted above).

Sorry for inconvinience, i will try to check all the solutions you gave me, in the next following days. Thanks.

Re: Cutting a part of a profiled sheet. How?

Barry Kelly — Tue, 20 Oct 2009 08:00:13 GMT

Either create a slab the shape of what you want to cut away and use a Solid Element Operation to cut away the shhet or get Ralph's OBJECTiVE add-on.
I don't have it but it looks pretty darn good.
Barry.

Re: Cutting a part of a profiled sheet. How?

Anonymous — Wed, 21 Oct 2009 10:58:35 GMT

Barry wrote:
Either create a slab the shape of what you want to cut away and use a Solid Element Operation to cut away the shhet or get Ralph's OBJECTiVE add-on.
I don't have it but it looks pretty darn good.
Barry.

thanks for the answer. If i have saw it well, the Objective add on is not free, and i can`t pay it, at least not right now.
I don`t think i can solve this problem with Solid Element Operation, here take a look at what i have done and it didn`t worked:

nedostizni wrote:
I tried using Solid Elements operations, and intersect my profiled sheet with the wall in a shape of arc, and then tried to extrude (just extrude, and with downwards, and upwards extrusion) but as i though so, i didn`t worked (it worked in a way that the part of the profiled sheet where it intesects the wall, was extruded, and i wanted to extrude it in that area plus the whole left part).

also, when i remove the object that extrudes the plofiled sheet, the cutted part on the sheets gets back to the origin.

Re: Cutting a part of a profiled sheet. How?

Aussie John — Wed, 21 Oct 2009 23:12:56 GMT

For SEO you need to put the cutting object into a hidden layer if it is for cutting purposes only. Increase the size of the cutting object so it cuts away all the unwanted bits. If it is hidden it doesn't matter.

Re: Cutting a part of a profiled sheet. How?

Barry Kelly — Thu, 22 Oct 2009 03:30:50 GMT

Make sure your slab completely covers the part of the roof sheet that you want to remove.
Then just a simple "Subtraction" will suffice.

Or you can use subtract with upward or downward extrusion if you want.

As Aussie John said place the operator in a layer that can be hidden.
The layer I use (as shown here) is also set to wire frame view.
Turn the layer off and you can only see the cut object.

Delete the operator and the cutting will no longer happen and the sheet will be back to normal.

But note this will have absolutely no effect to the 2D view.
The sheet will appear as it always did.
You will need to use a white or background coloured fill to cover it up.

Barry.

Re: Cutting a part of a profiled sheet. How?

Aussie John — Thu, 22 Oct 2009 03:34:18 GMT

Barry wrote:
The layer I use (as shown here) is also set to wire frame view.

good idea

Barry wrote:
But note this will have absolutely no effect to the 2D view.
The sheet will appear as it always did.
You will need to use a white or background coloured fill to cover it up.

A known pain but I guess would be tricky to code.

Re: Cutting a part of a profiled sheet. How?

Anonymous — Thu, 22 Oct 2009 04:55:07 GMT

Barry wrote:
"The layer I use (as shown here) is also set to wire frame view."
Can I just repeat what John said?
"Good idea."
Use seo a lot, but never thought of that.
lec
ps
John;
Is you music uploaded somewhere to listen to?

Re: Cutting a part of a profiled sheet. How?

Aussie John — Thu, 22 Oct 2009 05:00:21 GMT

Hi Lec you could try
http://www.macjams.com/artist/Aussie+John
is a few years old. (I like to think I'm a bit better now!!)

Re: Cutting a part of a profiled sheet. How?

Anonymous — Mon, 26 Oct 2009 12:19:51 GMT

Thanks for the tip Barry Kelly. It worked. Thanks mate.

Now, if i can make another question please, i hope i won`t make you mad guys. I want to make different kind of roof on the same floor plan. The roof needs to be curved. Here is my previous project, just to give you a shot of what i a trying to do:

image1
image2
image3

I done this roof with the Roof command (Geometry method: Barrel Vaulted). I have also made it with .gsm file, but when i tried to cut of the curtain wall that intersects with the roof, i got some error message, wich repeats every time i open that file. So it seems that created it with Roof command (Geometry method: Barrel Vaulted) was better option.
All that went well, but then i had a rectangulare floor plan, and now i have a bit complicated one. Here is a preview of what i want to do with my present floor plan:

here

How can i do that? Thanks.

Re: Cutting a part of a profiled sheet. How?

Anonymous — Mon, 26 Oct 2009 16:43:19 GMT

Sorry about cutting in line on topic.
Nice recordings John.
Even though I'm not a big country fan, I especially liked your Country cut.
Sometimes life really is more than just buildings, thank goodness!
Take care.
Be safe out there.
lec

Re: Cutting a part of a profiled sheet. How?

Dwight — Mon, 26 Oct 2009 17:46:33 GMT

Curved, arching roof elements are best made with the complex profile extruded as a wall. The results are smooth, not faceted like the roof tool makes.

In the case of the curved edge, an SEO is the way to edit the shape.

Once the design is complete, save the SEO'd roof element as an Object and substitute it for the original by turning off the original complex profile layer and SEO layer.

This corrects the shape in plan.

For quick edits, restore the original layer views and re-save the changed roof element to update the correctly depicted object.

Re: Cutting a part of a profiled sheet. How?

Anonymous — Tue, 27 Oct 2009 08:53:15 GMT

Dwight wrote:
Curved, arching roof elements are best made with the complex profile extruded as a wall. The results are smooth, not faceted like the roof tool makes.

In the case of the curved edge, an SEO is the way to edit the shape.

Once the design is complete, save the SEO'd roof element as an Object and substitute it for the original by turning off the original complex profile layer and SEO layer.

This corrects the shape in plan.

For quick edits, restore the original layer views and re-save the changed roof element to update the correctly depicted object.

Thanks for the help Dwight, i realy own you.
The problem is, i haven`t understood you quite well.
How can i create complex profile extruded as a wall? By drawing it with 2d lines, and then making a slab of it?
How can i create a curved edge with Solid Elements Operator?

Sorry for disturbance, but i realy haven`t understood you. Can you please be more specific. If you find it dificult, and not propriate (as you have already gave me an answer) i will understand. Thanks mate.

Re: Cutting a part of a profiled sheet. How?

Barry Kelly — Tue, 27 Oct 2009 09:06:54 GMT

Nedostizni,
Do a bit of searching for "curved roof" or "complex profile".
Here are a couple of quick links but there are many more that explain further.

http://archicad-talk.graphisoft.com/viewtopic.php?p=155454&highlight=curved+roof#155454

This one has a link to an Archicadwiki article on complex profiles.

http://archicad-talk.graphisoft.com/viewtopic.php?p=138290&highlight=curved+roof#138290

Learning how to create and use complex profiles can be very handy for all sorts of situations.

Barry.