NordicCNC's build log

[JAZZCNC]

Here's where I throw a spanner in the works.

This is from my own way of working I think you are going way overboard with the construction of the Z-axis adding more and more to it.

You can't be serious.? You are using a rotating ball-nut on the Z-axis and you think he's going overboard with things.!

That design with the screw sticking up 400-500mm above the z-axis when at the top is just a crazy, pointless design and overly complicated for its application. Rotating ball-nuts are great on longer axis but for a Z-axis they will make no difference because the screw is so short that whipping or inertia don't factor into the equation which is the only reason to use a rotating nut, even with servo's which spin much faster than steppers.

Also regards your intended design with the L-shape Gantry that is all mixed up as well. Your design wastes Gantry clearance height because using the middle slot on the profile and misses the whole point of the "L" design. The point being the L shape is so most of the cutting forces are directed into the horizontal piece placed at the bottom where forces are highest.