Are there rigidity figures for this?

[Infraviolet200]

Did you ever take example measurements of the rigidity for this on it's axes? Newtons per micro-metre figures for how much it can flex? It would be really useful to know.

Also, the https://www.rigcnc.com/ website which at one point appeared to hold extra documentation for this CNC design appears to be down?

Thanks

[Infraviolet200]

I was able to find some info on this:

Normal RigCNC design rigidity figures: video says 50N applied to spindle on X, 0.076mm deflection (0.65N/um) 0.0127mm for 50N on Y to the spindle (3.9N/um), the workbed does 0.127mm on Y (0.39N/um) and 0.076mm (0.65N/um) on X for the bed. All those measurements are relative to the fixed frame, so adding these would suggest 0.32N/um on X and 0.35N/um on Y.

Also a RigCNC clone with a welded back bracket achieved .006in and .001in at 10kg force on the X and Y axes respectively. So 0.65N/um and 3.9N/um.