Thanks for the replies, So 20mm rails for the whole off the machine , flange carriages for the X axis and HGH20CA carriages for the Y and Z .Will go with the 2 ball screws even though i only intend to cut hard wood but just incase i ever need to cut aluminium. I have had ago at the gantry, really i just stole Jazzcnc L shape design,Hope he dosen't mind .the front profile is 120mmx60mm and the back profile is 60x60mm the end plates are 20mm plate.
Cheers Greg
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