Measuring strength of printed parts

Initial tests will be with a fixture to measure bending strength (see: Strength of Printed parts link above)
A 'standardized' part size/shape will be created, and bending force will be applied to it,
measuring the force as the force is increased until the part breaks.
Amount of deflection vs. force will also be measured.
There will be differences/variations in measured breaking strength between 'identical' parts, so it will be necessary to make several for each test condition and measure all to their breaking points, then average the results
Measured strength will be different with different force orientation. That is, strength measured with bending force perpendicular to the plane of the printed layers will be different than strength when force is parallel to the layer plane.
(at least initially...) The measured strength values will not be absolute or calibrated in any ASTM sense, but will only be relative to these specific testing fixture and conditions.

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