Anyone up for the challenge?
I like it !
There is also similar to this posted at 3dwarehouse for SketchUp users which he modeled a lot of different connections and locking mechanism without bolt it screw
@Cesar_Tolentino you know the name for reference so I can search for it?
Give me a few
Ok i found it… it is called DIGITAL JOINTS… For people who are not familiar with Sketcup, the free version is Sketchup Make. And then there is a plugin to make it STL, or a plugin to make it DXF… Hope this helps…
https://3dwarehouse.sketchup.com/collection.html?id=u0e981088-0ffa-432b-b126-6f3a14f3b78d
and for the plugins, here is the repository…
https://extensions.sketchup.com/
I love Sketchup. Easy to learn and use, very powerful once you know how to use it. I even modify STL with it
Haha…Ariel, you have to tell me how to modify STL with it. I always end up redrawing the whole thing… what is your secret…
If the STL is very complex, forget it and go to Fusion 360. If its more simple then i just delete all the tris ( cross lines in the face ) and from there add, delete, etc. I should do a video of that
@Ariel_Yahni_UniKpty Yes you should do I video on that 
I would love to lean a bit more of sketchup from somebody using the same tools as me.
to modify stl look at Meshmixer
http://www.meshmixer.com/
@StephaneBUISSON organics shapes yes, parts and similar I does not offer the same precision
@Cesar_Tolentino can you tell me what DFX plugin you use? I haven’t found one yet that works correctly.
@donkjr download the latest SketchUp and use native dxf export
@Ariel_Yahni_UniKpty I don’t have the pro version.
@donkjr latest Make version also saves to dxf. I tried it yesterday to confirm
@Ariel_Yahni_UniKpty wow that must be new?
I think so, I was surprised myself
Thanks Ariel for the follow up. Let me know if you also cannot find the import export of STL file