Re: Decimal Places
Doug Evans
>Hi Paul:
Thought I might add something here about dimensioning, as it comes up relatively frequently.
The reason Shepherd uses decimal point dimensions in a number of places is that the planes are built around some basic fractional dimensions (ie. 2 1/4" blade) with materials (ie. 10 gauge sidewalls) that are not readily fractional. There are also clearances that are not fractional. In addition, there is an unknown quantity which averages about 0.030" of plastic deformation created by the side-peining the sole plate. At one point, I actually started to render this to closest fractional equivalents however, the tolerances required were left in the dust.
In the case of the thumb plane, I may actually re-write the instructions and modify diagrams to use the componentry, as a "story stick." For example, mill your wood to the dimension of the inside of the lands of the dovetails on the sole plate (and show a corresponding Dimension "A" on the diagrams).
Of course, we are also considering jacking the price to $99 and supplying wood to avoid the problem altogether (the Dimension "A" is provided solution).
As another hint of the breezes to come, expect our finished plane prices to take a stiff jump...
Regards,
Doug