the machine is getting built so another controller at the end i will run to if it makes it work reliably, iv ordered and had delivered 16mm supported linear rails 3200mm..iv unpacked them tonight and the look really weedy...i was thinking of using a piece of 80x80 box to make the gantry or a piece of link pallet racking (doesnt seem such a great idea now)...whats the best way to construct a light weight gantry? i have linear rails and 2m of r&p...im worried that the y axis rails arnt going to stand the weight and forces??

i want the gantry to pertrude past the y axis outside the table and be able to run an ingraver...im not ever planning on doing any milling on this machine...iv got alot riding on this plasma working and working well,any help will be very greatfully receaved