I went to a very interesting 3d printing workshop last night and I have decided I will be 3d printing my parts to double check fit and functionality before I manufacture them from steel or ali. Provided I can get my Reprap Ormerod working correctly I should have a moving axis or two by sunday. I will post the g-code files once I know each part will work so that anyone interested can print their own copy. The CAD files I will only release once the arm is at a working stage.