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Pomi  
#1 Posted : Tuesday, January 17, 2017 10:03:26 AM(UTC)
Pomi

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I got ViaCAD 3D 10 Pro (german version) and i am an early CAD beginner.

I try to build up a complicated part by creating a surface, extruding it, define a new work-area on top of the extruded part, define the next surface, extruding it and so on.
Then i mark the different bodies and add them to be one body.
I am now working on the 5th layer and the new surface can not get extruded. I think, the surface is not recognized as a surface.

How i define the surfaces:
The inner structure is a simple circle, which results as a bore.
The outer structure is a spline, build from lines and arcs which all got connected with a "connecting curves" tool to become a closed ring.
The area between the inner and the outer structure is the surface, i want to extrude.
That procedere has worked on 4 layers now and on the 5th i think, the spline is not closed to a ring, but a tool "repair curves" (Kurven reparieren), which told me the position of gaps before, tells me: everything is ok.

Any ideas, how i can check (and repair) my spline?

Thanks in advance ...

Edited by user Tuesday, January 17, 2017 11:33:27 AM(UTC)  | Reason: where is the attached screenshot "sockel.png"?

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Pomi  
#2 Posted : Tuesday, January 17, 2017 2:29:25 PM(UTC)
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Sounds funny, but after redrawing that spline about 10 times without any result, i found a solution:
Make the existing bodies invisible so that only the basic lines are to be seen and suddenly the extrusion tool accepts the surface as a surface and works.
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Pomi  
#3 Posted : Tuesday, January 17, 2017 2:45:52 PM(UTC)
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What can i do with an unknown error?
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Tim Olson  
#4 Posted : Tuesday, January 17, 2017 5:05:05 PM(UTC)
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Can you post just the curves you are trying to extrude?

Tim
Tim Olson
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EvoSoft
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Pomi  
#5 Posted : Tuesday, January 17, 2017 6:01:59 PM(UTC)
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Hi Tim,

sorry, just wanted to go to bed. In Germany it is nearly 1am at night ...
The extrusion is no problem any more i guess, but the addition to one solid body does not work on the surface under the balkony.
I could work on and add the next two layers to one solid easyly.
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Pomi  
#6 Posted : Wednesday, January 18, 2017 6:19:37 AM(UTC)
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Maybe i found the reason why the two solids don't want to unite:
There is some rest of a line sticking on the surface.
The problem is: I can't highlite it separately to remove it.
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Pomi  
#7 Posted : Wednesday, January 18, 2017 8:47:28 AM(UTC)
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It starts to get funny. Another surface doesn't want to extrude.
I copied all and paste it into a new document. There it was extrudeble.
Then i copied the same with original coordinates into an other new document - not extrudable. :-/

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jdi000  
#8 Posted : Wednesday, January 18, 2017 10:24:44 AM(UTC)
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Originally Posted by: Pomi Go to Quoted Post
It starts to get funny. Another surface doesn't want to extrude.
I copied all and paste it into a new document. There it was extrudeble.
Then i copied the same with original coordinates into an other new document - not extrudable. :-/



Hello Pomi

I can extrude both files you posted.

Some things to try and use when extruding.

1. I use the tool to convert all to arcs found in the arc toolbar at the end.
2. I use select chain to select the curves also shows if they aren't connected. on rt click menu
3. Curves could be grouped together and then extruded


Regards

Jason
Windows 10, Win 7
Pomi  
#9 Posted : Wednesday, January 18, 2017 12:55:14 PM(UTC)
Pomi

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Hi Jason

thank you for your reply!

Even though i got bad news:
On my system it seems that none of your suggestions work.
#1: Two lines just disappear and the rest gets fragmented to many little lines with "gaps" in between.
#2: If the "selected chain" looks good (even if it is a simple test-triangle in a new ) it is not sure that i can extrude that.
#3: grouped or not didn't make any difference here.

Edited by user Wednesday, January 18, 2017 12:55:59 PM(UTC)  | Reason: Not specified

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Pomi  
#10 Posted : Wednesday, January 18, 2017 5:17:33 PM(UTC)
Pomi

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Ok, i got a strategy: Don't show the sytem too much. Don't disturb him.

I start a new layer by looking from the top in wire-mode.
There i can find some relevant points, which i lift to the upper surface.
Then i turn to front view and make the whole existing structure invisible.
Back to top view i (and the system) can only see these relevant points.
They show me, where to draw the lines. The circles center on the rootpoint.
So it is easy to build a surface without repairing / undoing all the time.
All these surfaces i build that way worked ok.
After extruding i make the other strukture visible again, connect the bodies and save with a new name_index.
Then i start the next layer.
About one third of the layers i have got already.
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Drahtkasten.PNG (61kb) downloaded 7 time(s).
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13_layers.PNG (122kb) downloaded 7 time(s).

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Pomi  
#11 Posted : Thursday, January 19, 2017 4:56:43 AM(UTC)
Pomi

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Ok, again i could learn a little ...

I exported to STEP and sent my data to a professional CAD-constructor.
He found more remains than an archeologist digging out an australopithcus skelleton ;-)
Too many data-obscurities in my work.

So i don't care about repairs and start again from bottom up.
This time i keep the layers separat as long as possible and drill the bores from the side in a later state.
The separate layers offer me to modify later or exchange them if needed and the data stays less complex for the system.
Besides that i keep unmodyfied basic drafts to copy and paste when starting to build the single layers.
Makes it easier than drawing the same lines again and again.

It's now 5 days that i use ViaCad and about 10 more days i played with other 2D CAD in my 58 years of life.
I allways drew with pencil on paper ...
I don't expect to be a master jet ;-)

Edited by user Thursday, January 19, 2017 5:29:07 AM(UTC)  | Reason: more details

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Pomi  
#12 Posted : Thursday, January 19, 2017 5:38:28 PM(UTC)
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Ok, the day was good :-)
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Pomi  
#13 Posted : Sunday, January 29, 2017 3:12:39 PM(UTC)
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Hi all,
i basicly stopped to extrude surfaces. Unreliable tool. Now i mainly use the basic solids and boolien functions.
It's a pity that i have to do normal work now. Holidays are over.

Have a good time.
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Guest  
#14 Posted : Sunday, January 29, 2017 3:15:21 PM(UTC)
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Pomi

The extrude tools work very well. Not sure what you mean. Every example you posted extrude fine that I tried.

Regards.

Jason
Tim Olson  
#15 Posted : Monday, January 30, 2017 1:32:51 PM(UTC)
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Hi Pomi

The extrude tool requires you select a closed planar profile. It may be your are selecting curves not in the same plane or not all the curves leaving gaps.

I've noticed some designers put their profile in a separate layer to make it easier to select and later modify.

Tim

Edited by user Monday, January 30, 2017 1:33:56 PM(UTC)  | Reason: Not specified

Tim Olson
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Pomi  
#16 Posted : Tuesday, January 31, 2017 1:04:28 PM(UTC)
Pomi

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Hi Tim, hi Jason

i believe, that you don't have any problems with the extruder. But when i place the curser on the surface and nothing happens ...

Sure, when i started i had often uneven surfaces as the "logicurser" was a little confused by too many lines in the background.
So he never knew, in which layer i wanted to act. Making layers invisible solved that problem.
Open corners were the next challenge: There are some detection tools and some repair tools.
But even if all detection tools say "Everything's ok", fairly often the extruder does nothing.
Then i zoom in and go along from one line section to the next even the very small arcs in rounded corners using the repair tools.
Sometimes it works after doing so. Sometimes not.
Then i tried test-surfaces: A triangle must be in one even shape. He doesn't like triangles. More than 80% fail.
Once even a circle, set the centre with the curser and defined the diameter by numbers, didn't work.
Something is wrong on my system, but is it the ViaCAD-software or a little fault on the DVD or Windows 7 or my 5 year old notebook - i don't know.

But anyhow, using the basic solids and all the modifying tools give all i need.
And for a 3D-CAD it was really cheap ;-)

Thank you and have a nice time!

Christoph

Edited by user Tuesday, January 31, 2017 1:12:02 PM(UTC)  | Reason: Not specified

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Jesse  
#17 Posted : Saturday, June 17, 2017 3:35:57 PM(UTC)
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I don't want to hijack this topic, but as I seem to have a similair experiance with Viacad V10 I wondered if both Christoph and me are making the same mistake, or if their is a bug. I am also new to 3D CAD.

In the attachement, I am unable to extract the 2D gear into a 3D model. When I draw some simple parts, I often get extrusion working fine, sometimes it doesn't. Sometimes I can not get it to work even be with a simple circle.

It seems Viacad doesn't recognize the surface as a surface. I tried the repair function, but that doesn't recognise anything either. When selecting everything selects fine. I am also unable to paint the surfice when I can not extrude it.
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L. Banasky  
#18 Posted : Saturday, June 17, 2017 4:55:54 PM(UTC)
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Found quite a few overlaps, etc. Made a similar 30 tooth gear, hope it helps.
You can edit the file.
If you select and delete the Polyline, it will Extrude.
Larry

Edited by user Saturday, June 17, 2017 5:08:14 PM(UTC)  | Reason: Not specified

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Jesse  
#19 Posted : Sunday, June 18, 2017 12:55:11 AM(UTC)
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Thank you Larry!

How did you recognize their where multi overlaps, when zooming in I wouldn't see them? Do you see it because it are multiple segments, and that you can not see the properties view (as properties view only works with closed figures?) I would like to learn this, so I can detect issues myself. Thanks again for your input.

Jesse
horst.w  
#20 Posted : Sunday, June 18, 2017 2:35:37 AM(UTC)
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Hi Jesse,

I also found out that there is existing a overlay between the polyline and the lines-assembly.
You need only one of them, lines or polyline.

I have separated the polyline to layer-2; switched to this layer, I covered the surface and then the push-pull-tool is working fine.
Using the lines-assembly it needs to join them together with the join-curve-tool; than same procedure. cover surface ... push-pull; the Thicken-tool may also work.

I prefere to bore the axis-hole finally with the counter-bore-tool; your drawn hole is also a polyline as a lines-assembly.

best regards
horst.w, GER


PS: tested the thicken-tool, it works but it needs an unusual long time.

H.

Edited by user Sunday, June 18, 2017 2:47:36 AM(UTC)  | Reason: Not specified

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ViaCAD 9 Pro german + ViaCAD 10 Pro & PowerPack
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