I’m still waiting on my lead screws so I thought I would run some more strength tests. I wanted to remove the rod lengths from the equation so I reconfigured my machine to be as small as possible and then applied horizontal loads at the tool tip in x and y.

Without lead screws I had to print clamps to fix the carriages to the rods. That is not a very valid test since the true force is at the lead screw coupler but it did validate the approach.
I wanted a way to visualize the flex so I took two pictures, one unloaded and one with 12kg of load (the max my motors can produce) and created an animated gif that flickers between the photos to show the change.
Anyway I need to rerun this test once I have the screws in place but it shows good potential.

If you can't see the animations, click on these links.

https://drive.google.com/file/d/1WCDO56HmuPtjiAbYbI8hDq9x1OoLgzZW/view?usp=sharing

https://drive.google.com/file/d/11k9zTuHS4Xlt9F1XTvrYqrfzLlFwhm-s/view?usp=sharing