Application
Fig. 13
Occasionally technical circumstances can be even more challenging. There are instances, for example, when just cutting from the bottom of the die up to the margin will still not produce the desired results. The ten thousand of an inch (.010) blade chosen for its rigidity may be too thick for the closely spaced margins of the preparations; or the ideal angle of the cut from the margin side may differ from what would be ideal on the base side. Fig.13 Illustrates a problem case: many small preps and dowel pins in close proximity.
Fig. 14
The technique that could address both problems would be to pre- saw each section to a depth that is below the margins. Use a seven thousand of an inch (.007) saw blade to preserve the margins integrity. Then complete sawing through the distal of the # 22 and # 28 die (Fig.14). Recommendation: in order to provide greater visibility an offset saw frame should be used for this procedure. (Fig.14) illustrates the first steps to be taken the "pre-cutting", photo shows saw blade in the cut as it is being made. Also shows the two end cuts that will allow the section to be removed as a block.