I am happy to report that I ran my first job with the modification to my Ridgid R2911 with @TomD’s 3D printed parts and a T8 lead screw with 8mm lead and more than doubled the speed of my stock z-axis as @Gero mentioned earlier in the thread!
I got the lead screw from Amazon
- Note the coupler in this kit is 5mm to 8mm. So, I ended up drilling out one end out to 6mm to fit over the stock Maslow Z-axis motor shaft. I also took apart one of the pillow block bearings bushings to secure to the bottom of the screw with allen screws.