Quote Originally Posted by JAZZCNC View Post
Ermm to me by arranging the profiles at the top of the 160 side pieces your wasting 80mm of height that could be used to lower the gantry height and increase stiffness or keep as it is and gain clearance.
The gain in having the motors under the bench isn't worth wasting stiffness, also moving the motors to the outside will shorten the belt length.

Also, the slightly elevated sides put the rails up higher and stop debris from hitting them directly and building up against the rail.
Those are some extremely good points..

By moving the motors to the outside of 160x80 profiles, the belt lengths will be shorter and I will be able to move the 80x80 profiles down 80mm. This in turn will decrease the needed height of my gantry sides by 80mm while also protecting the Y-axis rails.

There is no doubt, I will make those changes. Maybe I could even change the sides to 200x80 and be able to make the gantry sides even lower! Now it starts to turn into a raised gantry design. The drawback will be that it becomes more difficult so access the machine table from the side, when e.g. fastening the workpiece.

Thanks JAZZ!

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