I’ve got a license for Solidworks, and the weldments feature is specifically designed to easily draw structures with I-beams and channels, and it works really well with Alu extrudes as well. I’m going to try MAY-CAD, though, just to compare. I’ll report back!
EDIT: Moduasm has cad files!! I love them!
I need a safe way to mount the Arduino to my rig… Without shorting it out. So no cable ties…
Inside a kosblik?
So, a small update 
Through a serious of fortunate events and incredible generosity, I managed to get 3 of those XCEED-ingly good monitors from Checkers! (See @Darthmol’s thread)
It has long been a dream to have 3 monitors, as the level of immersion is next level (ta dum tiss), and some driving accuracy is just a bonus. I now see apexes for sharp corners easier and I can judge when to accelerate better.
I am under no illusion that guys drive way better than me on far worse rigs, but that is just proof that I need all the help I can get.
For example, Ty Majeski, a pro racer, has more than 10k iRating, yet drives on THIS:
But I digress.
This is my new monitors in position. Please ignore cable management and position. Trying to source some table mounted arms to get the screens closer to the wheel so I can have a better FOV.
Tonight will be my first race with these monitors and I am SUPER excited!
Special thanks to my significant other, you ROCK hard, Lumpy!
Oh man, that must be heaven. Are those 60Hz monitors, or something faster?
They’re 144Hz monitors 
Very nice setup. Enjoy it!
oh my PP
Valhalla
Looks right proper mate! Wish you may happy miles of going cross-eyed trying to watch all 3 monitors at the same time, all of the time! 
What would do without our significant others?!
That looks so unbelievably cool dude. You have created Sim racing nirvana. I am infinitely jealous and hope you enjoy it thoroughly.
Thanks everyone!
Those are 144hz, yes. Struggled to get Nvidia surround to work as expected as 2 are on HDMI and 1 on display port. So they are seen as 3 monitors and games run in windowed mode. I dont care, it is buttery smooth and amazing.
Setting up streaming was a challenge, but I am now streaming from the onboard HDMI port
Seat and frame about R6k. If you read up above you will get all the tools and I am happy to help with anything
The seat is a Golf R seat I got from a mod shop second hand. There are plenty to be found if you shop around.
Ok, so that’s definitely worth it, since the only place I found that sells it outright, could cost R12k.
i’m a little puzzle about the design, because i would need a shifter and handbrake fitted, that’s already sagging my current mount 
I assume you don’t use any? or are your photos old?
@oltman used Modular Assembly South Africa for his aluminum extrusion. They’re actually our sister company, but unfortunately our employee discount has been revoked due to COVID. 
I do however have a lot of experience with the stuff so I happy to help with the design in general. We use that extrusion a lot at our company. Anything from conveyors, assembly tables and even entire industrial machines. I also have a lot of experience with lasercut parts so I can help there too if you need anything custom designed.
I dont use a shifter or handbrake, but it should be fairly easy to add a sturdy side mount for them. Download that cad app (May-Cad.com) and play around. Super easy to use and you get to see exactly what it looks like before spending a cent!
Also, sounds like @Konck has all the contacts
