Tuesday 23 October 2012

Introducing Some Precision

Two case halves prepared; mating faces skimmed from one datum, bearing recesses bored to match across exactly to each other and inner crank recesses skimmed flat. Finally all measurements checked and cross referenced between two halves back to one datum ensures maximum precision, thanks to Tony for use of his Coordinate-Measuring Machine and informative report! Also showing in picture are the bearing spacers for bringing the bearings in toward the centre of the crank.