Create A "Clean" Sweep of this!

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pekkio
Posts: 28
Joined: Wed Jun 14, 2017 2:39 pm

Create A "Clean" Sweep of this!

Post by pekkio »

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 1152 times
B - percorso.jpg
B - percorso.jpg (754.13 KiB) Viewed 1152 times
bacino.FCStd
(7.68 KiB) Downloaded 33 times
A - profilo.jpg
A - profilo.jpg (389.29 KiB) Viewed 1152 times
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papyblaise
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Re: Create A "Clean" Sweep of this!

Post by papyblaise »

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 1140 times
cadre.FCStd
(282.8 KiB) Downloaded 32 times
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Vincent B
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Re: Create A "Clean" Sweep of this!

Post by Vincent B »

Yes, PartDesignNext can't do the polar pattern. But Part workbench is able. why? :roll:
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bbb.FCStd
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Capture.JPG
Capture.JPG (39.63 KiB) Viewed 1134 times
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papyblaise
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Re: Create A "Clean" Sweep of this!

Post by papyblaise »

why
Because this it's (parce c'est comme ça :!: )
TheMarkster
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Re: Create A "Clean" Sweep of this!

Post by TheMarkster »

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

phpBB [video]
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bacino(v2).FCStd
(62.89 KiB) Downloaded 42 times
chrisb
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Re: Create A "Clean" Sweep of this!

Post by chrisb »

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 1090 times
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pekkio
Posts: 28
Joined: Wed Jun 14, 2017 2:39 pm

Re: Create A "Clean" Sweep of this!

Post by pekkio »

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: 28
Joined: Wed Jun 14, 2017 2:39 pm

Re: Create A "Clean" Sweep of this!

Post by pekkio »

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
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Re: Create A "Clean" Sweep of this!

Post by chrisb »

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 1077 times
.
... I wanted to add the preselected arc.

Can someone please confirm?
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TheMarkster
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Re: Create A "Clean" Sweep of this!

Post by TheMarkster »

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.
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