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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK TRL Lathe, ProtoTRAK RLX CNC Safety, Installation, Maintenance, Service & Parts List
2.18 Cutting the Test Part
(See Figure 2.19)
Tools Required
Chuck
Tool Post
Tool Block
Tool Holder, right-hand face and turn type
In order to accurately machine the test part, the gears and bearings in the headstock must be properly
warmed and preloaded. This is accomplished by running the spindle for 15 to 25 minutes prior to cutting
the test bar at 500 RPM.
Load an approximately 2” dia. aluminum bar into the spindle chuck. Load a standard right hand face and
turning tool into a tool block. Align and lock the tool block onto the tool post. Set the depth of cut to a
maximum of .002.
Set the spindle to an acceptable speed for turning the test piece. A speed range from 650 to 950 RPM is
recommended.
2.19 Measurement of the Test Part
Tools Required:
O.D. Micrometers with .0001" graduations
Using a calibrated O.D. micrometer with .0001" graduations, measure and record the generated dimension
at a 6.00 spacing. The acceptable measurement of parallelism of spindle axis to carriage movement (taper
of test piece) is .0008" over 6". If the taper measured is not acceptable, re-machine the test part and/or
check and adjust the level of the machine, or adjust the headstock.
i00196
Figure 2.19 - All TRAK TRL Lathes - Test Part
