Hi,
was planning to build something like Joe2006 which has the gantry sides connected underneath the table and the central motor/leardscrew attached to it. However I ran into some post discussing bed frames and full supported design vs partially Supported Y- axis & fully supported X-axis and it put a bug in my ear. The bottom line in the post was that a fully supported design (with all the axis solidly on the table) is much better as far as avoiding flexing. The obvious solution would be two motors/controllers/leadscrews, however that's out of budget. I then found out that one of Solsylva's designs was solvingthis problem by having pulleys and belts on the back controlling 2 leadscrews on the sides. An example can be seen in this post:
https://www.cnczone.com/forums/diy-c...tml#post777324
This is still a little more expensive, but maybe worth doing. I've looked at several dozens build threads and never seen anything like it, a joe2006 with one motor + double leadscrew, and I'm wondering if the reason is because it's a dumb idea/no real gain.
thoughts?
thanks