small change leading to edge mixed up
Forum rules
and Helpful information
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!
Also, be nice to others! Read the FreeCAD code of conduct!
small change leading to edge mixed up
Hi,
I'm using FreeCAD for a while now and I often have this issue: I'm editing a body and I want to change something in the previous stack of features, like adding or removing a hole in the sketch of a pocket. When I apply the change many of the next features are broken, the Edge names changed.
I understand that changing a feature can change the geometry a lot, but many time the change is so independent to the rest I don't understand why the other features are affected. I think the software should know when an edge is same as before the change.
https://imgur.com/RTaZwD0
Source file : I want to remove the last "diagonal round pockets", if I do almost every features has to be redone
In this example the fillet is done on another pocket which is not affected by the change, but the edges references gets broken anyway.
Am I doing it wrong ? Is there a way to avoid this ?
I'm using FreeCAD for a while now and I often have this issue: I'm editing a body and I want to change something in the previous stack of features, like adding or removing a hole in the sketch of a pocket. When I apply the change many of the next features are broken, the Edge names changed.
I understand that changing a feature can change the geometry a lot, but many time the change is so independent to the rest I don't understand why the other features are affected. I think the software should know when an edge is same as before the change.
https://imgur.com/RTaZwD0
Source file : I want to remove the last "diagonal round pockets", if I do almost every features has to be redone
In this example the fillet is done on another pocket which is not affected by the change, but the edges references gets broken anyway.
Am I doing it wrong ? Is there a way to avoid this ?
Last edited by Bozarre on Sat Oct 23, 2021 3:16 pm, edited 1 time in total.
Re: small change leading to edge mixed up
Topological_naming_problem
some people have large issues with tnp, others hardly ever - it depends on what type of models you are making and how they are done
if one knows the general pitfalls, at least then it can be minimized.
some people have large issues with tnp, others hardly ever - it depends on what type of models you are making and how they are done
if one knows the general pitfalls, at least then it can be minimized.
- Shalmeneser
- Veteran
- Posts: 9582
- Joined: Wed Dec 23, 2020 12:04 am
- Location: Fr
Re: small change leading to edge mixed up
https://www.file.io/deleted/Bozarre wrote: ↑Sat Oct 23, 2021 9:52 am Source file : https://file.io/UbuhoCmRLAPa I want to remove the last "diagonal round pockets", if I do almost every features has to be redone
- thomas-neemann
- Veteran
- Posts: 11958
- Joined: Wed Jan 22, 2020 6:03 pm
- Location: Osnabrück DE 🇩🇪
- Contact:
Re: small change leading to edge mixed up
what kind of models do you make?
3d printing, mechanical engineering, architecture, point clouds, wood construction ...?
Re: small change leading to edge mixed up
I guess this website isn't made for sharing to multiple people ^^
I've attached the model to the 1st message (without the image which was taking most of the space)
Re: small change leading to edge mixed up
It's for 3D printing. It will serve as cover for my screedriver-box, the hex bits will be held upside-down by magnet in the cover (the round pockets)thomas-neemann wrote: ↑Sat Oct 23, 2021 11:39 am
what kind of models do you make?
3d printing, mechanical engineering, architecture, point clouds, wood construction ...?
- Shalmeneser
- Veteran
- Posts: 9582
- Joined: Wed Dec 23, 2020 12:04 am
- Location: Fr
Re: small change leading to edge mixed up
Your problem : Topological_naming_problem
* Do not construct upon face but upon plane
** Faces can change if you modify something (suppressing / creating new face).
** Axis will neither change
*Perhaps construct with Sketcher_External if you are sure you'll never change the first sketch.
You can try to break my model. Fillets will certainly fail (they refer upon edge, so...), other step no (I hope ).
* Do not construct upon face but upon plane
** Faces can change if you modify something (suppressing / creating new face).
** Axis will neither change
*Perhaps construct with Sketcher_External if you are sure you'll never change the first sketch.
You can try to break my model. Fillets will certainly fail (they refer upon edge, so...), other step no (I hope ).
- Attachments
-
- Capture du 2021-10-23 19-16-01.png (166.61 KiB) Viewed 887 times
-
- HexBitsBoxCapLight_SHALM.FCStd
- (476.49 KiB) Downloaded 20 times
Re: small change leading to edge mixed up
@shalmeneser thanks for the file, indeed it seems better that way
Re: small change leading to edge mixed up
The final result:
Holds my hex bits using magnets and it fits the box where i put the screwdriver handles
-
- Veteran
- Posts: 5513
- Joined: Thu Apr 05, 2018 1:53 am
Re: small change leading to edge mixed up
I know I'm too late to the party, but there is another (not as good as remodeling, but maybe quicker and easier...) way. ParametricDefeaturing macro can remove the holes.
Usage: install the macro from the addon manager (tools menu). Select the faces of the feature you want to remove, then run the macro. If successful (it is not always successful) the feature will be removed.
Usage: install the macro from the addon manager (tools menu). Select the faces of the feature you want to remove, then run the macro. If successful (it is not always successful) the feature will be removed.