Application
Fig. 11
In those instances It is preferable to saw from the bottom of the die up towards the margin. (Fig. 11) The instrument in the photo is called "The Model-Ease" , consisting of a model clamping instrument in (Fig. 10 and 14) and a inverted saw attachment. (Fig. 11, 12 and 16)
Fig. 12
Start by centering the saw blade between the dowel pins. (Fig. 12) Lightly stroke the die section over the inverted saw blade to create a track: verify that the track is centered between the pins and continue to complete the cut. . When using an instrument, as in the photo, greater control can be obtained if the saw blades teeth point away from you, so that the cutting occurs as the die is being pulled towards you.
A ten thousands of an inch (.010) blade for rigidity, with 25 TPI for less aggressive cutting action, would be a good choice if conditions allow.