Thanks for all the advice
I have made a start on the design off the z axis which i am not sure if i have worked out the travel right so any advice would be great,I change the profile for the Y axis L shape to 90x45 I think it was in a post by Jazcnc that I was reading that it is handy for fitting the Hiwin rails to. Here are some pics with the measurements
Cheers Greg
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