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  QR codes have enough capacity to store small @freecad@social.freecad.org scripts/models. This is the makeBottleTut example from https://wiki.freecad.org/Topological_data_scripting#The_script 547 bytes after compression. The script opens makeBottle.png unzips the text from the QR code and executes it. Scripts: https://gist.github.com/kwahoo2/38560d14c913fdf83fa9737b71fd18f5

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  [EN] Making an egg shape with Sketcher and Descartes method in @FreeCAD Based on https://www.ijpam.eu/contents/2012-78-5/8/8.pdf [PL] Tworzenie kształtu jajka w szkicowniku metodą Descantesa

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  [EN] @MonadoXR with libsurvive tracking works well now even with two Lighthouse setup. @FreeCAD XR workbench does not need SteamVR at all now for Lighthouse-based devices. Other news: the workbench now allows to creation of Draft polylines, including filled faces and point snapping. #FreeCAD #XR #FreeCADFriday [PL] Monado ze śledzeniem libsurvive działa teraz dobrze nawet przy konfiguracji z dwoma Lighthouse. @FreeCAD XR workbench nie potrzebuje już SteamVR dla urządzeń opartych na Lighthouse....

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  #FreeCAD #AstoCAD I am currently working on modelling tools in FreeCAD XR Workbench. That includes: - working plane that can be aligned to object's face normal - drawing wires (polylines) for face creation - making pads and pockets from these faces #VR Teaser below:

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  Good news, it seems that 4 year old bug in #Linux #SteamVR is finally fixed https://github.com/ValveSoftware/SteamVR-for-Linux/issues/422 #vr #openxr

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  #FreeCAD XR Workbench can run now on Wayland thanks to the EGL interface. Works with #SteamVR and @MonadoXR or any runtime that supports XR_MNDX_egl_enable extension. Note: this is an early work amd requires an pyopenxr fork and Coin3D compiled with EGL instead of GLX (info: https://github.com/kwahoo2/freecad-xr-workbench/blob/main/doc/EGL_Howto.md)

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  Picking objects with 3D ray demo. Shows an example use of FreeCADGui.ActiveDocument.ActiveView.getObjectInfoRay(vec_start, vec_dir) introduced in FreeCAD 1.1 More info: https://forum.freecad.org/viewtopic.php?t=98958 https://gist.github.com/kwahoo2/6be97fd804ab3df0441eb0e710eafbd9#file-robo-waypoints-ray-pick-py #FreeCADFriday

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  ...and another attempt to Free Flight tool for @FreeCAD (navigate with keyboard and mouse like in a FPS game). Since I failed to deliver equal experience on all platforms using just Qt, this time I'm experimenting with SDL library provided by pySDL3 python bindings. More info: https://github.com/FreeCAD/FreeCAD/issues/5563#issuecomment-3192561148

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  Testing/developing #FreeCAD XR workbench without VR hardware should be easier now. I created https://github.com/kwahoo2/remote-mndset This is a client for @MonadoXR remote driver. The client supports both keyboard/mouse or gamepad input. Of course, remote-mndset can be used with any OpenXR application, as long as the Monado runtime is used.

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  A new experimental/WiP feature in #FreeCAD Virtual Reality workbench - interactive projection of the main window Qt panels into the #VR view (notice how the panels on the left are synced with panels in VR):

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  EN: I just released the 1.0 version of Virtual Reality workbench for @FreeCAD https://github.com/kwahoo2/freecad-xr-workbench/releases/tag/1.0 Features: - Support for OpenXR+OpenGL Virtual Reality sets, thanks to pyopenxr. - Support for Windows and Linux, including Wayland (tested with SteamVR and Monado OpenXR runtimes). - Roomscale and artificial locomotion - both smooth and teleport with motion controllers. Two modes of smooth movement: Free (6 DOF following the left controller) and Arch (s...

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  @FreeCAD Virtual Reality addon just works with Tilt Five AR glasses and the latest beta runtime(1.5). Pretty cool, knowing that T5 does not obstruct real world view. Tip: you can pair two T5 wands with single glasses to get full left/right hand controller scheme.

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  A portal to another dimension at home... Tilt Five AR glasses displaying our favourite #FreeCAD building on a photo-reflective surface hanging on a wall.

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  @TechConnectify Superb vid! But I have an issue with the claim at 24:28, that three way catalyst converter cannot work at lambda equal exactly zero. Below is graph of three way catalyst converter efficiency. Solid lines are for harmful exhaust components after the catalyst converter (dashed - before). Hatched region is "catalyst converter high efficiency region". As you can see at lambda=1 CO, HC and NOx are all low. But the 2 state lambda sensor is, well, 2 state. It cannot sh...