[bug?] workflow part design pocket and pad

[Jee-Bee]

There is an inconvenience in the workflow between the part design pad and pocket.
In the attachment i have added a plate with an hole... both sketched on the xy plane. the default direction of the the pocket is reversed against the default direction of the pad...

Code: Select all

OS: Windows 7
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.14709 (Git)
Build type: Release
Branch: master
Hash: faad5ea27301cb7af393a25d317c406d3098bafe
Python version: 2.7.14
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: Dutch/Netherlands (nl_NL)

i guess it is an easy fix (and so maybe for the low hanging fruit?)

[chrisb]

I don't think it should be reversed. You can attach a sketch to a face and the pocket is going down into the material. If you attach it to the principal plane - which is a good idea to make it robust - the "down" direction often contains nothing, so you have to revert it, in order to take material away.

[chrisb]

Perhaps it's more intuitive if you set in the Sketch MapReversed to true and in the Pad set Reversed to false.

[Jee-Bee]

both make no sense to me... still the positive side swaps or it don't swap but is assumed that the direction is negative...

[chrisb]

both make no sense to me... still the positive side swaps or it don't swap but is assumed that the direction is negative...

Perhaps this point of view helps clarifying things: padding and pocketing always go in opposite directions.

[Jee-Bee]

Only for to the inside(removing material) ot to the outside (adding material) not in direction of extrusion...

edit: test it in creo works as expected(by me) two times same direction

[Jee-Bee]

I asked a colleague who works with solid works... He have the same (stupid) behavior as FC now...


edit: looks like nx works the same again as creo... (https://www.youtube.com/watch?v=UFZF6q7GvQ4) but more difficult
edit 2: inventor (2018) works the same as Creo

[DeepSOIC]

we could make it guess the initial state of Reversed flag by analyzing the model before opening the dialog. Just how PartDesign Revolution does. And Part Extrude's Make Solid checkbox. This will not affect the robustness, but will reduce the confusion a little bit,

[Jee-Bee]

the groove is reversed as well see attachment

[Jee-Bee]

Would it be a idea to add a config option for setting the normal direction for cutting part design features?
in the parameter editor: Preferences>>Mod>>PartDesign ...