Hello.
First of all a big thank you for this project. I look at its 545 pages in a week, that happiness! Thank you, thank you thank you for making us dream. You have admirers to France and you are my hero
If I write to you it is because I searched on every page the answer to a question left unresolved since your first publication.
"With what materials do the V2???" MDF, aluminum, etc ...
I worked a few years in a DIY store with significant employee discounts for MDF. I used to see abused for any kind of project. Table, chair, shelf, painted on one side, 2, pierced, not pierced, etc ... I think I did all that could be done with this wood. In many ways it is great, except for one thing, durability ... Even with 35mm there are curves, sails etc ... Wood is a living material the sun and humidity have always had because of him.
All its to tell you that I have nightmares to imagine that you use this material for the V2.
So If you have the answer to this question, kill the suspense please!
I thought about it a little on my side and I thought about aluminum profile V-slot, very resistant, inexpensive for the structure. It is used on the frames of 3D printers and other CNC DIY.
For the panels, a material that I find interesting is the Dibond, a plastic composite aluminum. Very resistant, insensitive to moisture, good paint grip. A big default for you, cutting is done at the cnc, I do not think the laser works on the aluminum. The plate is a bit expensive but it's durable. For fixing the two it takes screws but in truth when I see the number of scabies you have I think they could be quite cleverly hidden below. In short it is not the miracle material but it has some interesting aspet
here is good continuation