George's 8x4 router-me-bob

[georgetheforge]

Thanks chaps-

What kinda clearance would you recommend?- obviously depends on what I'll be machining-!!

mainly 18/ 25mm ply and mdf, some poly/ foams maybe and maybe some ali if possible....

I wanted the side plates- rather than your solution- so i could keep the top surface clear for loading etc- i do have little triangular brackets which i forgot to make bigger when i was playing with the gantry height-

was tepted to 'split' the gantry so i had 2 sections with the ball screw between them fitted to the back of the front/ z plate. obviously that makes it heigher and was worried about twist/ aligning them correctly.... i did look at getting some 100 x 200 x 10mm RHS and getting the front lasered out to make a so a proper c section rather than an channel- almost like a chunky Unistrut....? then reverting to plan a having one of the rails on the front- bottom and one on the top.....?