It was at this point that having completed and tested the machine I decided that
whilst there was a very occasional tendency for the workpiece to lift slightly when
filling it was rarely a problem. However, lift during sawing was far from OK and
some form of hold down was going to be essential if it was to be used in this way.
At the beginning I referred to the research I had done concerning filing machines,
explaining why I had chosen to include, or not include, features that were incorporated
in other machines. One item I had seen but made no mention of, was a facility to
hold down the workpiece so as to prevent it being lifted on the upstroke of the file.
My reason for excluding this being that the feature was only fitted on large industrial
machines, smaller ones for the home workshop, etc. did not. No doubt that this was
because the small machines were never intended for sawing.
Having, at this stage, included the feature it is an attachment rather than an integral
part of the machine, this being illustrated by Photograph 36. This is probably an
advantage, as should the one making the machine intend to use it only for light duty
filling the machine can be made and used as originally envisaged.