Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

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ripper
Posts: 2
Joined: Sun Mar 28, 2021 10:54 am

Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby ripper » Sun Mar 28, 2021 12:36 pm

Hi there,

I'm a quite experienced CATIA and SolidWorks user now getting into FreeCAD since their licencing models are, ehm, incopatible with personal use.
To get started I recreated some designs I did in CATIA in FC 0.19, like these two parts, an endpiece with an screw on cap for a PVC pipe to mount something on there (can't tell more at the moment).
Endstueck_FC.PNG
Endstueck_FC.PNG (121.25 KiB) Viewed 884 times
Endkappe.PNG
Endkappe.PNG (222.94 KiB) Viewed 884 times
Works well so far, only major thing I noted: the fillet operation behaves not like in CATIA.
Endstueck_Rundung_FC.PNG
Endstueck_Rundung_FC.PNG (615.12 KiB) Viewed 884 times
Endstueck_Rundung_CATIA.PNG
Endstueck_Rundung_CATIA.PNG (430.87 KiB) Viewed 884 times
It's no problem for me, since it is a minor detail. If someone wants to have a look into the file, I put it up on my Github:
https://github.com/regendrogenbogen/FC_test
chrisb
Posts: 33789
Joined: Tue Mar 17, 2015 9:14 am

Re: Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby chrisb » Sun Mar 28, 2021 2:28 pm

Thanks for showing. So it is possible to start with FreeCAD despite knowing other CAD systems.
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GeneFC
Posts: 2082
Joined: Sat Mar 19, 2016 3:36 pm
Location: Punta Gorda, FL

Re: Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby GeneFC » Sun Mar 28, 2021 3:26 pm

I believe this is one of those cases where it works better to add the fillets early, right after the steps are created. Then the vertical structures will pierce right through the fillets without problem.

Gene
ripper
Posts: 2
Joined: Sun Mar 28, 2021 10:54 am

Re: Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby ripper » Tue Mar 30, 2021 10:08 am

chrisb wrote:
Sun Mar 28, 2021 2:28 pm
Thanks for showing. So it is possible to start with FreeCAD despite knowing other CAD systems.
Of course it is. Maybe it helps that this is already the 4th CAD software I'm learning. Due to that I know that the way something is done in one CAD system isn't THE way to do it.

GeneFC wrote:
Sun Mar 28, 2021 3:26 pm
I believe this is one of those cases where it works better to add the fillets early, right after the steps are created. Then the vertical structures will pierce right through the fillets without problem.

Gene
That would have been my approach too if it would be neccessay that it looks that way. In this case, the fillets are simply there to make it easier to assemble, since there are cable that need to run through the part and out of the slit below the thread.
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GlouGlou
Posts: 2962
Joined: Sun Apr 05, 2015 9:02 am
Location: La Rochelle, France

Re: Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby GlouGlou » Thu Apr 01, 2021 5:12 pm

Try the make the pad after the fillets. :?:
domad
Posts: 337
Joined: Mon Jun 22, 2020 12:16 pm

Re: Threaded endcap for a pipe assembly (CATIA user getting into FreeCAD)

Postby domad » Thu Apr 01, 2021 5:35 pm

ripper wrote:
Sun Mar 28, 2021 12:36 pm
..................
Works well so far, only major thing I noted: the fillet operation behaves not like in CATIA.
.................
It's no problem for me, since it is a minor detail. If someone wants to have a look into the file, I put it up on my Github
..................
Hi ripper, hello to the Community!

Agreeing on what chrisb said, we are very pleased (!) That some users of other cads (in particular of catia and solidworks) try to use FreeCad!
As I have said in several topics (not least this https://forum.freecadweb.org/viewtopic.php?f=24&t=56605) FreeCad, whatever the complexity of the modeling, is not intimidated, so I ask you to try to model the wheel of the steam locomotive with catia and solidworks to see if you get the same result also in terms of the weight of the final file.
As for your perplexity about the strange behavior of the fillet, I assure you that with the right workflow we arrive at the correct definition of the model.
I hope this will convince you, more and more, to use FreeCad and to pass on your experiences for the benefit of the whole FC Community and those who want to approach the world of FreeCad.
The final result is shown in the image.
Here the file that contains the new workflow: http://www.filedropper.com/endpiecenewworkflow
Good evening and good work!
Attachments
Endpiece_new_workflow.png
Endpiece_new_workflow.png (309.13 KiB) Viewed 446 times