Geoffs Ormerod Y Axis Belt Clamps

Still putting my Ormerod 1 kit together - it's rather like the Curates egg - good in parts.

There are some very nicely designed parts, but the original Y-Axis belt Clamping method can best be described as TOTAL GARBAGE - I tried several times to get enough tension & just gave up.

I tried iamburnys RepRap_Pro_Ormerod_iamburnys_Y-axis_Belt_Clamp_-_Parametric, ( http://www.thingiverse.com/thing:263720 ) but the belt kept slipping out, so I added an extra screw & some nut holders to really re