Create A "Clean" Sweep of this!

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pekkio
Posts: 21
Joined: Wed Jun 14, 2017 2:39 pm

Create A "Clean" Sweep of this!

Postby pekkio » Sat Jul 20, 2019 9:38 am

OS: Mac OS X
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13541 (Git)
Build type: Release
Branch: releases/FreeCAD-0-17
Hash: 9948ee4f1570df9216862a79705afb367b2c6ffb
Python version: 2.7.14
Qt version: 5.10.1
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)

Hi everyone,
do you think there is a chance to create a clean solid using Sweep of that profile on that track?
The result should be more or less the one of the picture attached that I obtained creating the round profile and the straight profile and doing an array. But obviously it's not a good solid and when I try to do a boolean operation on it (joining everything together) I get a mess!
result.jpg
result.jpg (244.31 KiB) Viewed 276 times
B - percorso.jpg
B - percorso.jpg (754.13 KiB) Viewed 276 times
bacino.FCStd
(7.68 KiB) Downloaded 11 times
A - profilo.jpg
A - profilo.jpg (389.29 KiB) Viewed 276 times
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papyblaise
Posts: 714
Joined: Thu Jun 13, 2019 4:28 pm
Location: France

Re: Create A "Clean" Sweep of this!

Postby papyblaise » Sat Jul 20, 2019 11:09 am

hello
A chance, I don't know , but with the right tools maibe Yes ,
I do 1/8 one , Miror + Array with Part Wb it's finish
With Partdesign , I can't do it
Attachments
cadre.PNG
cadre.PNG (38.69 KiB) Viewed 264 times
cadre.FCStd
(282.8 KiB) Downloaded 7 times
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GlouGlou
Posts: 1717
Joined: Sun Apr 05, 2015 9:02 am
Location: La Rochelle, France

Re: Create A "Clean" Sweep of this!

Postby GlouGlou » Sat Jul 20, 2019 11:24 am

Yes, PartDesignNext can't do the polar pattern. But Part workbench is able. why? :roll:
Attachments
bbb.FCStd
(102.02 KiB) Downloaded 10 times
Capture.JPG
Capture.JPG (39.63 KiB) Viewed 258 times
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papyblaise
Posts: 714
Joined: Thu Jun 13, 2019 4:28 pm
Location: France

Re: Create A "Clean" Sweep of this!

Postby papyblaise » Sat Jul 20, 2019 11:54 am

why
Because this it's (parce c'est comme ça :!: )
TheMarkster
Posts: 1061
Joined: Thu Apr 05, 2018 1:53 am

Re: Create A "Clean" Sweep of this!

Postby TheMarkster » Sat Jul 20, 2019 9:13 pm

Another way to do this in Part workbench using Draft Facebinders. The result is fully parametric.

phpBB [video]
Attachments
bacino(v2).FCStd
(62.89 KiB) Downloaded 2 times
chrisb
Posts: 19473
Joined: Tue Mar 17, 2015 9:14 am

Re: Create A "Clean" Sweep of this!

Postby chrisb » Sat Jul 20, 2019 9:36 pm

GlouGlou wrote:
Sat Jul 20, 2019 11:24 am
Yes, PartDesignNext can't do the polar pattern. But Part workbench is able. why?
From what I see in 3D view PartDesign could do it as well. The mistake PartDesign seems to make is to erroneously assume some instances were not intersecting - which in fact they do:
Attachments
Bildschirmfoto 2019-07-20 um 23.37.56.png
Bildschirmfoto 2019-07-20 um 23.37.56.png (43.19 KiB) Viewed 214 times
pekkio
Posts: 21
Joined: Wed Jun 14, 2017 2:39 pm

Re: Create A "Clean" Sweep of this!

Postby pekkio » Sat Jul 20, 2019 9:41 pm

TheMarkster wrote:
Sat Jul 20, 2019 9:13 pm
Another way to do this in Part workbench using Draft Facebinders. The result is fully parametric.

phpBB [video]
Nice solution. Never used Facebinders till now. It could solve some problem I had in other project. Do you think would it be possible to get straight corners instead of round?
pekkio
Posts: 21
Joined: Wed Jun 14, 2017 2:39 pm

Re: Create A "Clean" Sweep of this!

Postby pekkio » Sat Jul 20, 2019 9:43 pm

papyblaise wrote:
Sat Jul 20, 2019 11:09 am
hello
A chance, I don't know , but with the right tools maibe Yes ,
I do 1/8 one , Miror + Array with Part Wb it's finish
With Partdesign , I can't do it
Nice idea!
chrisb
Posts: 19473
Joined: Tue Mar 17, 2015 9:14 am

Re: Create A "Clean" Sweep of this!

Postby chrisb » Sat Jul 20, 2019 10:07 pm

GlouGlou wrote:
Sat Jul 20, 2019 11:24 am
Yes, PartDesignNext can't do the polar pattern. But Part workbench is able. why? :roll:
FreeCAD crashes if I try to do the sweep including the circle. Based on GlouGlou's model, I did the following:

- open the file
- delete Array
- hode AdditivePipe001
- double click AdditivePipe
- remove Edge3 from the path

this is the last image before crashing ...
Bildschirmfoto 2019-07-20 um 23.55.36.png
Bildschirmfoto 2019-07-20 um 23.55.36.png (13 KiB) Viewed 201 times
.
... I wanted to add the preselected arc.

Can someone please confirm?
TheMarkster
Posts: 1061
Joined: Thu Apr 05, 2018 1:53 am

Re: Create A "Clean" Sweep of this!

Postby TheMarkster » Sat Jul 20, 2019 11:12 pm

pekkio wrote:
Sat Jul 20, 2019 9:41 pm
Nice solution. Never used Facebinders till now. It could solve some problem I had in other project. Do you think would it be possible to get straight corners instead of round?
I think so. Just replace the revolve with 2 extruded facebinders. Extrude them past each other, then take the common.