Smithy GN1300 - Manual (Page 77)

Step 5: Position the selector (I-III) into the position listed on the chart for the
desired feed rate.
Step 6: Set the recommeded speed for the work stock material and cutter that
you are using. (See chapter 8 for setting speeds.)
Step 7: Before running the powerfeed do a “dry run” by manually feeding the
cross-slide table and carriage assembly the distance that you will be feeding
your project. Also, rotate the chuck by hand to verify tool clearances. This will
prevent any unnecessary crashes.
Step 8: Once your speed has been set start the machine and engage the
powerfeed selector into the desired position. (Pushing the lever up will run the
powerfeed along the Y-Axis. Pushing the lever down will engage the X-Axis
powerfeed.)
Step 9: To stop powerfeeding, disengage the powerfeed by moving the lever
into the neutral position which is half way between the Y-Axis and X-Axis
engagement.
Step I0: If you wish to reverse the direction of your cut,stop the machine and
move the leadscrew rotation lever into the opposite direction. Restart the
machine and engage the powerfeed selector lever.
Step-By-Step Mill Power feeding
Step 1: Determine the proper speed and feed rate for the material your cutting
and the cutting material you will be using from a general reference guide such
as the Machinist Ready Reference.
Step 2: With your workpiece and tooling properly mounted, place the
powerfeed selection lever in the mill mode by moving the lever to the mill
spindle icon all the way to the right. (Reference figure 9.1 above.)
Step 3: Referencing the chart on the front of the machine’s headstock, find the
desired feed rate (or the closest to the listed range for your work material and
cutter.)
Step 4: Position the selector (1-7) into the position listed on the chart for the
desired feed rate.
Step 5: Position the selector (I-III) into the position listed on the chart for the
desired feed rate.
! NOTICE !
For optimum performance, be certain to set the belts to run in the
upper portion of the suggested spindle rotation speed range.
Granite 1300 Series Operator’s Manual
9-5 For Assistance: Call Toll Free 1-800-476-4849