Ready Steady Eddy

[EddyCurrent]

On the other hand, went back to basics for a rethink, used spreadsheet and this set up should be very strong with not too much metal bashing.

Gantry width 1000mm, 80x80x3 steel box section
Gantry sides 120x80x5 steel box section with top open end plated.
All other plate 20mm aluminium
Rails mounted on front to remove need to have extra brackets if they were placed top and bottom.
150mm travel on Z axis.
Front could have thin slotted plate for chip protection or the whole front could have bellows fitted to cover rails as well.

Rail are spaced at 170mm centres and Z carriages are same spacing vertically
Y rails, not shown, mount directly under plate at bottom of gantry sides.
Hole for Y ballscrew to exit at one end (not shown) may require double plating around it for strength.

Any thoughts on this ? especially best way to engineer the various butt joints at end of each box section.