Design for 1800x800x80 wood router

[jimbo_cnc]

Having got a rough quote for the CNC routing I will need on a repeat basis (hopefully) I want to work up a design to build my own machine when demand is established.

First thing is to get the basic layout sorted, and I want to get an idea of what components I will be using and how much they will cost.

This is for 2.5D routing of almost exclusively 18mm melamine faced chipboard.

I've started with a simple ladder frame, from 80x80x3 steel tube. Then I've used that for the gantry too. Laser cutting of steel and welding I can get done locally.

I've gone for a small 80mm travel, just because I don't foresee the need for any more.

I've put SBR16 rails on just because I saw them in a thread today.

I'm interested to hear what ballscrews and motors I should be using. This router isn't going to be used non-stop so linear speed and power is only needed for cutting performance rather than to churn the job out fast. 50m of full depth profile cutting is the most it will do in a day, so even a cutting speed of 1m/min would be sufficient, but a bit boring.

I've drawn a couple of X rail layout for comment.

sketches are from powerpoint I'm embarrassed to say.