Part->Chamfer does not work

Post here for help on using FreeCAD's graphical user interface (GUI).
Forum rules
and Helpful information
IMPORTANT: Please click here and read this first, before asking for help

Also, be nice to others! Read the FreeCAD code of conduct!
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Thu Jan 09, 2020 6:18 pm

Roy_043 wrote:
Thu Jan 09, 2020 5:13 pm
You may have posted in the wrong topic as you are using the Part Design WB.
I am sorry...
PartDesign_Chamfer seems sensitive to the selection order of the edges?
Not for me...
If I first select Edge26 and then the other edges in a CCW order the command works OK.
It does not work for me...
It is not sensitive to the selection order...
My version is "Version: 0.19~pre2~201912181405~ubuntu16.04.1".

What is wrong?
chrisb
Posts: 27955
Joined: Tue Mar 17, 2015 9:14 am

Re: Part->Chamfer does not work

Postby chrisb » Thu Jan 09, 2020 8:30 pm

You posted sort of to the right topic, because you used a Part chamfer, but that is another mistake. You should have used the PartDesign chamfer (preferred) or you should have used the body and not the contained feature for chamfering.
koluna wrote:
Thu Jan 09, 2020 6:18 pm
What is wrong?
The real problem is that the lines are not really tangent, but almost. Please retry with all connections being tangent.
User avatar
Roy_043
Posts: 1893
Joined: Thu Dec 27, 2018 12:28 pm

Re: Part->Chamfer does not work

Postby Roy_043 » Thu Jan 09, 2020 8:54 pm

As already mentioned: I am able to PartDesign_Chamfer the required edges. It is true that the arcs are non-tangential, but that may be design intent.
Attachments
nut2_Chamfer.FCStd
(64.07 KiB) Downloaded 5 times
chrisb
Posts: 27955
Joined: Tue Mar 17, 2015 9:14 am

Re: Part->Chamfer does not work

Postby chrisb » Thu Jan 09, 2020 10:38 pm

Roy_043 wrote:
Thu Jan 09, 2020 8:54 pm
but that may be design intent.
It is known that this intent conflicts on the OCC side with angles very close to 180°.
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Fri Jan 10, 2020 7:20 am

chrisb wrote:
Thu Jan 09, 2020 8:30 pm
You posted sort of to the right topic, because you used a Part chamfer, but that is another mistake. You should have used the PartDesign chamfer (preferred)
The theme does not match the content. A bit :) Sorry.
I use only Part Design in this project.
I use the Part Design chamfer.
The real problem is that the lines are not really tangent, but almost. Please retry with all connections being tangent.
I am scared... I think that it will be difficult :(
Last edited by koluna on Fri Jan 10, 2020 7:27 am, edited 1 time in total.
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Fri Jan 10, 2020 7:27 am

Roy_043 wrote:
Thu Jan 09, 2020 8:54 pm
As already mentioned: I am able to PartDesign_Chamfer the required edges. It is true that the arcs are non-tangential, but that may be design intent.
I see your file, thanks. But it does not work for me... :(
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Fri Jan 10, 2020 7:28 am

chrisb wrote:
Thu Jan 09, 2020 10:38 pm
Roy_043 wrote:
Thu Jan 09, 2020 8:54 pm
but that may be design intent.
It is known that this intent conflicts on the OCC side with angles very close to 180°.
And? What can we do?
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Fri Jan 10, 2020 7:30 am

What a shame... What is it?!
Attachments
1-0.png
1-0.png (17.46 KiB) Viewed 185 times
chrisb
Posts: 27955
Joined: Tue Mar 17, 2015 9:14 am

Re: Part->Chamfer does not work

Postby chrisb » Fri Jan 10, 2020 9:32 am

koluna wrote:
Fri Jan 10, 2020 7:28 am
And? What can we do?
Nothing.

My attached file has all tangents. Please note that the points don't lie anymore on the inner construction circle.
Attachments
nut2_cb.FCStd
(37.37 KiB) Downloaded 8 times
koluna
Posts: 287
Joined: Thu Sep 20, 2018 12:36 pm

Re: Part->Chamfer does not work

Postby koluna » Sun Jan 12, 2020 2:13 pm

Hi, guys!
Thanks a lot! I have already did it! :)
Attachments
nut2.FCStd
(59.81 KiB) Downloaded 4 times