Bug #1707: PartDesign - Inconsistent handling of multiple pieces

[Kunda1]

issue #1707: PartDesign - Inconsistent handling of multiple pieces

Description
It's possible to create parts using normal PartDesign tools, which have multiple unattached pieces (for lack of a better word), but the current iteration of PartDesign only seems capable of handling parts with single pieces. So, some pieces get thrown away, leaving only one of the pieces in the 3D view.

Steps To Reproduce
Open attached document, change the depth of the pocket from 9mm to >=10mm. Observe that one end of the box disappears.

Instead, either the two end pieces should remain (preferable in my opinion), or the user should be informed that this is an error and the change in pocket depth shouldn't be allowed.

Related ticket: issue #1601

[wandererfan]

PartDesign_Workbench

The Part Design Workbench provides tools for modelling complex solid parts and is based on a Feature editing methodology to produce a single contiguous solid. It is intricately linked with the Sketcher Workbench.

What is a single contiguous solid? This is an item like a casting or something machined from a single block of metal. If the item involves nails, screws, glue or welding, it is not a single contiguous solid. As a practical example, PartDesign would not be used to model a wooden chair, but would be used to model the subcomponents (legs, slats, seat, etc). The subcomponents are combined using the Assembly, Part or Draft workbench.

[Kunda1]

PartDesign_Workbench

The Part Design Workbench provides tools for modelling complex solid parts and is based on a Feature editing methodology to produce a single contiguous solid. It is intricately linked with the Sketcher Workbench.

What is a single contiguous solid? This is an item like a casting or something machined from a single block of metal. If the item involves nails, screws, glue or welding, it is not a single contiguous solid. As a practical example, PartDesign would not be used to model a wooden chair, but would be used to model the subcomponents (legs, slats, seat, etc). The subcomponents are combined using the Assembly, Part or Draft workbench.

Makes sense. Any insight on how to proceed with both tickets?

[ian.rees]

This item is not about whether Part Design does or does not support contiguous solids, it's about making the UI consistent.

"either the two end pieces should remain (preferable in my opinion), or the user should be informed that this is an error and the change in pocket depth shouldn't be allowed."

Sorry if I'm getting the new style wrong, I'm sure it's quite effective, but I learn slow. -Ian-

[Kunda1]

Went ahead and changed this to a 0.17 blocker based on the comment NormandC made on the ticket.