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Scout 320 REV 3:2018
5.8.2 Procedure for checking bar straightness (Reference ASTM B249)
1. Find a suitable surface to allow the bar to rest on V-blocks without any rocking
movement.
2. Rotate the bar 360°. Record the dial indicator readings at each location.
3. Calculate both the tolerance for each meter increment and also the tolerance over the
entire length of bar. Compare the recorded values to the required tolerances to
determine the bar suitability for operation with a bar feeder.
ROTATE
BAR 360°
1.7mm GEOMETRIC
TOLERANCE ZONE OVER TOTAL LENGTH
INCREMENTS
0.5mm TOLERANCE ZONE FOR
EACH METER INCREMENT
Ø1.7MM / 3800MM
Ø0.5MM / METER
Ø0.070" / 12 FT
Ø0.020" / 36"