This cast iron table measures a diminutive 6" x 7" x 1 5/8" tall and weighs just 4.5kg (9.3lbs). That's big enough to mark out and inspect 99% of the components produced by the typical equipment we use in our workshops.
The pattern however, developed by L S Sparey, has all of the features you would find in a full sized unit. It is substantially ribbed and braced to ensure that it stays flat, regardless of loading or temperature variation. It sits on 3 pads so is incapable of rocking even on an uneven bench surface.
Classically, the casting is flycut on the miller then blued and scraped to a larger master - which is NOT supplied. In reality, we found that with the miller head set square to the table, a flatness of 0.0004" is possible using just a flycutter and without hand scraping. The old British Standard BS817 from 1938 allowed Grade A (Inspection) plates a flatness tolerance of up to 0.0003" and twice this for Grade B (Workshop).
This kit arrives with the casting, steel for the handles and a simple drawing. We've also included material and fasteners for a pair of simple brackets, allowing the surface to be flycut in a single pass.