I have a Carver, it's a 3 wheel electric vehicle that tilts as it goes round corners, feels a bit like flying at ground level. I'd like a Head Up Display to show me things like power use/regen, battery level and also an artificial horizon, just because! Getting the data is no problem, I can read the CANbus, but how can I display it? I need a REALLY bright display to reflect off the screen which I can connect to something like a RPi or ESP. Any ideas people?

This #freecadfriday I've been finding @freecad useful for designing a logo for our new Dynamic Cross Link (DXL) system. I know something like #blender would probably be a more suitable tool for this sort of thing, but I'm so much more competent in FreeCAD that I could knock up a 3D logo and animate it for my video in about half an hour instead of having to (re)learn Blender. I like the effect.

Used @FreeCAD to design the moulds for the winglet. So printing the patterns (Prusa XL) to make moulds from which eventually the carbon parts will be made from. There's a pair of winglets, each mould is in 2 halves (plus some small loose pieces), the pattern for each half is printed in two sections and the print takes nearly 2 days. So about 2 weeks of solid 3D printing time to do the full set.

And here's the same launch from onboard.

Here's a launch at the Kennedy site near the Cote d'Azur in the south of France. Flew on 8 out of the 9 days I was there, had some thermic conditions, in November! Could probably have squeezed in a top to bottom on the other day as well if I'd been desperate!

Winglets design optimised using #openvsp , final design with @FreeCAD then the prototypes were (very sparse!) 3D printed and skinned with carbon (production versions will be full carbon mouldings). Now flight tested (will tweak the optimiser a little to avoid the small area of speartion you can see in the tuft testing). More details about the optimisation in this post: https://www.patreon.com/posts/winglet-135459661
#freecadfriday

After getting it easier to turn now need to add stability. 2 flights today test flying ways to improve yaw stability. First tried a fin, then the winglets. Both worked, the fin was a bit too effective, very easy to go straight but reduced the easy turning, the winglets were great though, and also look really cool!
See previous post for the design optimisation prices used to arrive at this shape.

Using an Open Source tool chain (OpenVSP/VSPAERO, Python/SciPy, @FreeCAD) to design and optimise a winglet for a hang glider.
https://www.patreon.com/posts/winglet-135459661