My DIY laser

So i decided my little workshop needed a laser cutter.
And since im a fan of DIY i started some designing on my own i have never done this before so any hints and tips are greatly appreciated

Outside measurments are 1000x1500 mm the frame will be 2020 bosch rexroth extrusions and the rails 2040 v slot

Was planning on a 80w tube and smoothieboard but not finalised

Fell free to ask for details