Oh **** my bad, yes the legs are 3" and the cross supports are 2" I built the base back in August and I forgot what I used lol. Its taken 3 months to finally get all the parts from Finline. But now that it's close to being finished I'm super happy with the way the build is turning out. I can't wait to get everything button up and start cranking out part's. I'll definitely post some more YouTube videos in the next couple weeks. The Centroid guys want to see it up and running as well.
Let me know if you have any other questions.
Dan