Stell frame cnc 1500X1000. Adjustable table your opinion please

[Boyan Silyavski]

Dont be in a rush with it. better think it again. from various angles.


Now a couple of questions which are related:

-Why the 280mm height? Did you purchase already the rails for the Z at certain length?
-what is the width of the Z carriage plate that slides on the gantry?

Because i believe that it can be made narrower and that bearings with some thought to go behind the Z, not to eat of your Z travel left right/x axis/.

-what about the total weight of the gantry? you are not going with servos, right? this frontal plate will weight a lot. Actually i don't like it for that reason. You can strengthen the gantry in other ways. For example plan B and fit triangles inside where the vertical pieces are and no face plate. If the vertical pieces are spaced ~30cm or less there will be no need at all for face plate.


I was personally for plan B, but... Check again all the details, may be a mix of them all. Cause now looking at my drawings in fact i see B impossible as you draw it, cause you only need 40mm of the ball screw support to go inside so the ball screw housing barely shows, but in that case the rails should go inside the profile, which is impossible. So may be draw it first. To me it seems that C is closest of all to the measures . Just move back the middle piece so its 43mm back from the front.
You can reinforce it like this/ the middle profile in your case/ :





I cant remember if you have already bought the ball screws and the rails, if not-fit that motor inside as i told you at the beginning :-) and save some money for beer :-)