Here is one way of doing it: Path::Sweep a sketch for the router profile, along the path of where the router bit should go (make solid option is on). Then take this object Part::Cut that from your object. A bit tedious because aliging the profile sketch must be done to get right effect, but works. I...

Thanks DeepSOIC, works pretty nicely!

In case someone else is searching, this is sometimes called lapped join, lap joint, halved joint or cross lap joint. This kind of joinery is also comment when making a torsion box.

Hi, as an example, I have this project where I'd like a lapped/halved joint between the parts. All pieces are designed to be lasercut in acrylic/wood ~5mm. freecad-halvejoint.png tapez-bed.fcstd I can of course put in notches into the sketches manually, but whenever I'd move/resize the pieces I'd ne...

Reproduction of digital fabrication machines is becoming easier and easier, but still we rely on speciality hardware for many parts (instead of making them with our exisitng general purpose digital fabrication machines). Some common items include linear guides, bearings and timing belts. TapeXY is a...

A typical solution to this problem is to 'debounce' the changes, especially for sliders etc. That is, wait until some 100ms without any user activity before computing results. Ideally nothing will freeze the GUI while processing, and processing jobs that take longer can be cancelled. So even if re-c...

Slides from last time (quite basic), are at https://github.com/jonnor/projects/tree/master/freecad-workshop We try to keep things hands-on as much as possible. Last time we walked through one example object per modelling tool (sketch+extrude, booleans, revolve, etc). For next time I plan to instead ...

Nice. Thanks wmayer & yorik!

With the work ongoing to have 'expressions' support in FreeCAD, things like 'radius = 10.4/2' (where 10.4 is diameter) will probably become nicer - as it will stay like that instead of being converted to 5.2 right away.

Thanks everyone!

ickby: That is a great tip about eaglepcb2freecad. Will keep that in mind for next project.

Playing with 3d-printing conductive filament, I created a microphone (using a standard electret capsule). https://raw.githubusercontent.com/jonnor/projects/master/printable-electronics/doc/mic-electret-nearcomplete.png Green=Regular PLA, Brown=ProtoPasta Conductive Graphite PLA, Blue+Gray=vitamins h...