Part vs Part Design which one to choose? Basic Beginners FreeCAD 0.22 | Lesson 5

Which FreeCAD workbench should we choose? Part or Part Design Workbench? This is all down to the type of modeling you are going to be doing. Surface or solid modeling. We will understand the difference between surface and solid modeling and how that will affect our choice between FreeCAD's part workbench or part design workbench. We will compare the two workflows to understand the basic differences between the two. We will also touch upon compound objects.
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[@andrewwakefield4519]

Very helpful clarification of these similar but different workbenches - I wish I'd seen this when I first started using FreeCAD meant years ago!

[@pavelperina7629]

I don't know why, but as a newbie with some experience with openSCAD, i found out that Part and Part design feel like different programs. Maybe I discovered some stuff randomly, but I tried to design simple bathroom towel hook - shape consisting of two arcs and one line, or something like upside down J letter with rounded Y. First I tried to draw sketch. J letter part was relatively easy. Adding second part broke constrains one way or other, I was not able to make arc and make boolean operation of sketches, nothing. Then I experimented with part. First it does not have body which is weird. I made arc with outer dimension, cylinder with inner dimension subtract. Add rectangle, fuse. Upside down J done. I draw sketch with two arces with given end angles, diameters, connected them by line, then extruded sketch, positioned it manually, fused. Done. So what took me like two hours and 4 failed attempts was accomplished in 20 minutes, even faster than openscad (which i tried to import, but extrusion failed). Since now I assume that boolean operations work better in Part.

[@sleepib]

I'll add that the part workbench is the first layer on top of the geometry kernel, while part design is a user interface layer on top of the part workbench. So when something breaks in part design, it can often be fixed by taking the shape apart and fixing it manually in the part workbench. Useful when you have several hours in a project and get stuck.

[@cekuhnen]

That is actually a good way of seeing this. I do a similar thing in Fusion360. When the Solid model is stuck I go into surface mode to repair it. BUT Part workbench lacks many important tools like G2 fillets etc. That makes Part Design for me often still the rather first step to use.

[@bob-atl]

Excellent distinction between these two apparently similar workbenches.. Thanks

[@MangoJellySolutions]

Thank you :) Was trying to keep it as short as possible and glad it came across. Thanks for the comment.

[@garyl6031]

Are you going to do more? I finally found a tutorial that helps with learning freeCAD! Please Please don't stop now.

[@MangoJellySolutions]

Yes this is going to be a whole course. It's a bit different to my previous learning freecad series which is still valid for this version of freecad. Glad your enjoying. BTW. next video is out today.

[@zenomega3405]

As always superb tutorial ive watched so many of youre earlier ones that have helped me very much. Now that freecad is going to version 1 I will be watching every single one you make. Once again thank you so much

[@2200chuck]

This brings up an intriguing question. Will v0.22 (FreeCad version 1.0) be able to import surface models, such as Sketchup models?

[@BOTmaster15]

Sometimes Part workbench at first might seem worse option but things like boolean operations works much better than in part design. Sometimes sadly further editing geometry can brake in both benches when importing stl and converting it to solid.

[@jiritichy6855]

@3:01 you say you can solidify the surface. My question is, can you break the solid into a surfaces. If so, how, what is the command?

[@pegan5094]

Great tutorial! Would you consider to make whole course on i.e. Udemy? I’d buy it for sure!

[@meisievannancy]

Compound and Fusion.... I still can't see the difference ???

[@dbeelee8564]

Here's my guess. With freecad being open sourced, each workbench may have a different creator. Since the workbenches are designed to do specific things and use similar tools to get there, they name the tools differently as not to confuse the user as to which WB they are using. I have experienced errors in one WB and no errors in another WB while using the same steps. So, either I'm neglecting the particular order of steps (required in 1 WB) or the WB isn't designed to accomplish the task. Blending tasks within different WB's seems to error often. Presently, I'm fighting with curves WB profile-pipeline using the same steps done on a successful model, but, hasn't worked on a similar model. The non-working path is a rounded rectangle, primitive compared to the successful model. What a way to ruin a sunday afternoon ... freecad addiction. Lol 😂

[@meisievannancy]

​@@dbeelee8564Haha. Well what can I say. I too persevere until I accomplish the task. But then forget how I did it the last time in order to accomplish something similar. Terribly frustrating.