I'll never remember to revisit this thread, so:
G20 (imperial)
F5
S1000.00000

G0 Z0.1
G0 X0 Y1.46
G83 Z-0.1 R0.05 Q0.02 F3
X1.141 Y0.910
X1.423 Y-0.325
X0.633 Y-1.315
X-0.633 Y-1.315
X-1.423 Y-0.325
X-1.141 Y0.910
X0 Y0
G0 Z1

If you're on a manual machine, rather than a CNC, just use all the x,y locations and ignore the rest. The second-to-last-line, 0,0, is the hole for the crank bolt. Yes, I put 0,0 in the middle of the table, which is bad form. It's just a habit I have from a previous job.