Hi guys here is some progress
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My basic question if this arrangement is suitable for such a machine
The green colour is 1,5 cm aluminium and all the others steel.
The rectangular tube is 120X60
At the beginning i was planning to use 3 120X60 rectangular box tubes in order to make a C shape gantry but finally i change the plans
I will also like to hear your opinion about the way i attached vertical pieces of the side parts of the gantry to the horizontal parts
Finally i would like to know if it is better to bolt or to weld the rectangular tubes to the sides of the gantry

Thanks for your time

Vagelis