Appendix - Indexer Positions - Jet JWL-1442VSK Operating Instructions And Parts Manual

Appendix – Indexer Positions
How to use the chart
A diagram of the indexer is shown at right, as
viewed from the tailstock end of the Lathe.
Points A, B and C are the holes in the head
casting. The holes in the spindle collar may be
considered as numbered 1 through 12.
Example: You wish to rout 9 flutes on your
spindle blank. Locate the "9" in the "No. of
Flutes" column; each flute angle will be 40°. The
index pin should first be inserted into hole
combination "A-1". Make your first flute at this
position. Back off the index pin and rotate the
spindle until the index pin can be inserted into
hole combination "A-5"; this will be followed by
"A-9". Succeeding flutes will be made with the
index pin in the B position: "B-3", "B-7" and so
on
No. of Flutes
360° divided by...
1
2
3
4
5
6
8*
9
10
12
15
16
18
20
24*
30
36
other interesting patterns....
9
NOTE: A dashed line indicates that particular set of angles is not possible with the indexer.
* For 8 or 24 flutes, perform the first sequence, then rotate the workpiece by hand to the needed position and repeat
the same sequence.
Angle Letter
360.00 A 1
180.00 A 1,7
120.00 A 1,5,9
90.00 A 1,4,7,10
72.00 -----------------------
60.00 A 1,3,5,7,9,11
45.00 A 1,4,7,10
40.00 A 1,5,9
36.00 -----------------------
30.00 A 1 to 12
24.00 -----------------------
22.50
-----------------------
20.00 A 1,3,5,7,9,11
18.00 -----------------------
15.00 A 1 to 12
12.00 -----------------------
10.00 A 1 to 12
------ A 1,5,9
# Letter #
B 3,7,11
B 1,3,5,7,9,11
B 1 to 12
B 1,5,9
29
Letter #
C 1,5,9
C 1,3,5,7,9,11
C 1 to 12
C 1,5,9