Understanding FreeCAD: Lesson 5 - Quick Easy Curve or Curvature | Part Design | Beginners Tutorial

Lesson 5 inverse / reverse creating curved models and surfaces in FreeCAD using a process similar to that used in clay modelling. In this beginners guide we use both the part design workbench and the sketcher. We will be looking at an example and understanding how such curves are created in the model and how they can be achieved with just two actions. A common process used in CAD we will use a method similar to using a cookie cutter. FreeCAD doesn't offer a defined tool to do this but with the pocket tools in the partdesign wb we can make a slight modification to our sketch to allow us to use this technique.

Previous Lesson:
Lesson 4 Automatic Scaling Features with Formula

Next Lesson:
Lesson 6 Shape Binder Multi-body Modelling Hinged Box for 3D Print

#FreeCAD , #CAD , #basics
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[brianprice]

It is good to re-visit earlier videos. I learned this procedure when I was discovering boolean common command.

[ringding]

Excellent video. You showed me how to rethink certain modeling techniques!

[sar]

Good stuff. I’ll be trying out this technique later 👍

[charlietaylor]

Very useful technique. Your explanation was simple without being simplistic or oversimplified.

[justrosy]

Thank you! One thought. It seems like it would make sense to create an "Inverse" checkbox in the "Pocket" tool dialogue box, and then have FreeCAD automatically calculate an invisible box border (if inverse pockets can't be done any other way, that is), and just create the inverse pocket automatically. Would save a lot of time and be less messy on the screen.

EDIT: Note to self: 4:25 - Start of Instruction from scratch.

[VladekR]

I am missing something. At 9:25 not getting that reverse pocket`. Using v0.20 rev 26155

[JLTSoft]

Good stuff. I'm learning a lot from these series, and it's helping me with my SJU-4/A ejection seat design (for my AV-8B Harrier sim cockpit I'm going to be building).

[justrosy]

I've been playing around with this a bit more. How do I either join primitives so I can pocket or inverse pocket them, or how do I get two primitives (or just about anything else, for that matter) inside the same body with a sketch in it, so I can have some real fun with FreeCAD? I can create a body and then a sketch, and then create some other thing that gets dropped by FreeCAD outside a body, but if I drag and drop it inside the body, it just creates a reference and then the reference won't let me do the things in this video to the original thing I created (that FreeCAD didn't put inside any bodies). This is really frustrating. Help?

[Tokamak_]

I like your mouse. I can hear every single click you make!