Grizzly H8071 - Manual (Page 4)

-4-
h8071 drill press lathe attachment
operations
Follow all safety precautions in your drill press
owner's Manual and these instructions.
to use the drill press lathe attachment:
1. put on safety glasses, a face shield, and tie
back loose clothing and hair.
2. disCoNNECt drill prEss FroM
poWEr!
3. install the required driving center into the
upper end of the workpiece:
—if the workpiece diameter is 3 ⁄
4
" or less,
thread in the screw center.
—if the workpiece diameter is 3 ⁄
4
"–3", tap in
the spur center.
—if the workpiece diameter is 3" –6", tap in a
2" diameter forstner bit as the drive center.
you may have to slightly enlarge the pilot
hole to accept the forstner bit pilot.
5. place the workpiece pilot hole onto the live
center tip, and hold the workpiece in place.
6. Without losing spindle alignment, crank the
table up so the drive center shank enters the
chuck and the live center seats in the pilot
hole.
7. Clamp the drive center shank with the chuck,
lock the table into position and make sure all
fasteners are tight.
8. Verify that the drill press is set to the correct
speed for the turning operation. the typical
spindle speeds for turning are listed below:
—For roughing, start with a spindle speed of
750 rpM.
—For shaping, start with a spindle speed of
1500 rpM.
—For finishing, start with a spindle speed of
3000 rpM.
9. turn the workpiece by hand to ensure rota-
tion is unobstructed, and start the drill press.
10. tightly hold the chisel, and position your
hand and the chisel against the tool rest as
shown in
figure 6.
feeding the tip of the chisel into the work-
piece at to sharp of an angle will cause the
chisel to dig into the workpiece, which may
eject the chisel or workpiece and cause
severe injury. always keep the chisel perpen-
dicular to the workpiece so it drags across
the workpiece rather than digging in.
figure 7. typical turning operation.
Unsafe
Area
Rotation
Direction
Safest
Area
11. hold the chisel tightly so it is perpendicular to
the workpiece, and slowly feed the chisel into
the workpiece.
12. Keeping the chisel within the safest working
area shown in figure 7, carefully slide the
chisel up and down along the tool rest to
shape the wood. Keep in mind that the closer
the chisel moves toward the end of the tool
rest the easier it is to slide the chisel off of
the end. Working closer to the end of the rest
can also increase tool chatter. as workpiece
diameter decreases, readjust the tool rest as
required to keep the gap at a safe minimum.
figure 6. hand and chisel positioning.
tool rest
hand and Chisel
position for
Maximum Cutting
Control and safety