concretedogFeb 26

Just posted about #SOURCE issue 4 and the future! Originally I committed to 4 issues, but, as a spoiler for the blog post, I'm going to carry on! Post mentions #opensource #gnuradio #freecad #openvsp #OSHWA #git and more!

https://concretedog.blogspot.com/2026/02/source-issue-4-and-future.html

SOURCE Issue 4 and the Future!

  Way later than I ever wanted too, last week I published SOURCE issue 4 . It’s got three tutorials, one on GNU Radio where we step throug...

concretedogFeb 17
KLAXXON! #SOURCE issue 4 "Airwaves and Airplanes" is out! Good grief that's taken a while! Anyway in this issue we have a beginners tutorial for the fabulous @gnuradio we also get started with #OpenVSP which is #NASA's #opensource vehicle sketchbook and it's rounded out with a look at a new @FreeCAD workbench, Detessellate which helps reverse engineer Mesh to #CAD files. We've also tweaked a few things on the website! https://sourcemag.co.uk/
concretedogFeb 14
Still in the #Doghouse working on the delayed issue 4 of #opensource pay as you feel #Source magazine. Picture for evidence.. themes are "Airwaves and Airplanes" as there's a @gnuradio tutorial and a #NASA #OpenVSP tutorial. Working hard on #ILoveOpenSourceDay
BerndDec 2

Now that I have a reasonably fast CPU again I descended into the #CFD rabbit hole again. #OpenFOAM has a really steep learning curve (it is the opposite of plug-and-play). I last touched it in 2016. So far I have mostly modified some tutorial projects, but it is fascinating. The image shows the pressure distribution (red: higher, blue: lower) on a crude P.180 model created in #OpenVSP.

#computationalfluiddynamics

concretedogNov 15
The first half hour of kludging in #openvsp really interesting bit of #opensource software from #NASA
Avian Hang GlidersNov 14
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
TOVMar 2, 2025

A list of open Source CAD Software based on their release date.

#LibreCAD (2025)
https://librecad.org/

#BRLCAD (2024)
https://brlcad.org/

#Dune3D (2024)
https://dune3d.org/

#FreeCAD (2024)
https://www.freecad.org/

#QCAD (2024)
https://qcad.org/

#OpenSCAD (2024)
https://openscad.org/

#OpenVSP (2024)
https://openvsp.org/

#SolveSpace (2022)
https://solvespace.com/

#OpenFX (2021)
http://www.openfx.org/

LibreCAD - Free Open Source 2D CAD

concretedogJul 31, 2024
Really enjoyed chatting to Tim from @avian earlier this week. Their use of #python #freecad #openfoam and #openvsp is pretty amazing and creates fantastic flying machines! Check out the writeup on the @FreeCAD blog. https://blog.freecad.org/2024/07/30/forged-in-freecad-avian-hang-gliders/
Forged in FreeCAD: Avian Hang Gliders

Hang gliders are mesmerising when you see them in the sky. Silently cutting through the sky smoothly and often spotted in fine weather in beautiful locations there’s a lot to be said for them. Over…

FreeCAD News
pafurijazDec 31, 2023

Anyway guys don't underestimate #OpenVSP for #propellers is very great applications where you can access to many parameters that define a blade. take a look in this brief introduction. #airplane #turbine #ship #boat

https://youtu.be/QhBA-XqTM3Y?si=bN4uA8QMzh07cmMB

Propeller Introduction

YouTube
Show threadapp4softAug 9, 2023
The 2023 #OpenVSP Workshop, Day 3: https://openvsp.org/wiki/doku.php?id=workshop2023#wednesday_august_9
Half of today's slides uploaded, uncluding slides describing assembly making with linking parts (¡wrong PDF linked!), setting user variables, automation with Python API VSPSCRIP.
Also, some tomorrow's slides are uploaded too.
💡 #2d #3d #cad #diy #airplane #airplanes3d #aircraft #uav #drone #rocket #cfd #engineering
workshop2023 [OpenVSP]