Quote Originally Posted by Ross77 View Post
Not sure it I would have moved the y axis rails as well tho. For that long travel on the z you need them as far appart as poss to reduce the moment, the other side effect is that the y rail has moved the spindle futher way! You might want to shift the y axis rail back a bit further to compensate, dosnt mater if the motor overhangs a bit. mind it would be easy the remake the side plates later if it dose cause any problems. (Chatter, binding etc.)

Did you find RS the cheapest for the aluminium sections?

i put the y axis rails on the front as it keeps them a meter long and is alot easier to mount a plate straight on, instead of building a box around.

plus i may be using some low height rails instead, about 9mm instead of 30mm.

but ye i might have to move the y axis further over the rear bearing.

as regards to RS being cheapest? probably not but my work always gets stuff from there so its easy, i think it was about 20 quid per section,
the rails and bearings are cheaper than igus tho,