new build opinions required

[Boyan Silyavski]

Yes, yes, they will change direction/the forces. But... on a typical router the bearings that move the gantry are spaced 260-300mm/including, if rectangular supported/. On a heavy duty, like my current build for example, they will be spaced 400mm and above. So you have to space them obviously. What you are not taking into account is the overall height of that and the gantry and what i am speaking of is RESONANCE. It will resonate like crazy cause the forces of the tool and the assembly will be in paralel lines. Something like this resonator , where one fork will be the tool and its plate and the other the gantry assembly


there are some other forces which you don't take into effect- inertia and gravitation. Which are not problem in normal L shape gantry.

Just imagine a tank speeding on its noze vertically, when it has to stop. Tanks are low and long. Thats what best sturdy gantry design is.

While gravity and long L take care of the balance spreading it over the bearing blocks, the non achievable balance will f^^^ck what you propose. Vertical tank on its nose, it doesn't matter that it will be supported in the middle. if not that, then the resonance.

I am music instrument maker and here what will tell you. to lower resonance, you divide a long force arm into short ones and put each of them in different plane, so they will not help each other