Since my last post i have read LOTS of logs and researched this topic in much more detail and think I have finally found something I think will be suitable for what I require:

http://www.mycncuk.com/threads/1541-...-framed-router

ivars211 had started designing/researching this build also (http://www.mycncuk.com/threads/7412-...C-router-build) however, changed his design but did provide a lot of useful points and information.

I would try and use the mill for mainly wood work (40mm deep cut maximum) and some aluminium, my questions are:

- Is this machine setup suitable for my requirements?

- Ivars211 in his thread initially wanted to go for this kit (http://www.ebay.co.uk/itm/German-Shi...MakeTrack=true) however, was warned against it due to the high motor inductance (3.8mH). I am not sure if he used this kit however, in the thread it was recommended to use something at or less than 3.5mH. Would 0.3mH really make that big of a difference? This seems like a great price but not sure if I would be buying bad quality stuff if I went for it.

- For this build would it be suitable to use a roller carriage type setup for all linear carriages as shown here (http://www.cncrouterparts.com/linear...ent-p-100.html) with cold rolled steel as the guide rail? Would the machine still be fairly accurate?