Quote Originally Posted by JAZZCNC View Post
However, if you are wanting to Hogg aluminum away with aggressive cuts and higher feed rates then high sides and gantry sat directly on the rails is a better way to go.
What if you would compare these builds:

1. High sides, Z-axis travel 250mm. Frame made of 80x80 aluminium profiles. Gantry made of 80x160 and sat directly on the rails. Rails top mounted onto the 80x80's.

2. High gantry sides, same Z-axis travel. Gantry sides made of 30mm aluminium tooling plate. Frame made of 80x80 aluminium profiles. Gantry made of 80x160 and mounted to the gantry sides. Y-axis rails side mounted onto the 80x80's.

I understand the high sides build will always be stronger, unless you would make the gantry sides out of something much stiffer than what the frame would be made of.

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