Custom star bikewheel

Step 2 Setup the hub

First off we measure the width of the flange from the outside of the spoke hole to the outside of the flange ( in this case that's 3,25mm )

After that we measure the diameter of the spoke hole ( in this hub that's 2,5mm )
With this information we can calculate that the center of the spoke holes is at: 3,25mm + 1,25mm = 4,5mm

Adjust your caliper to this.
If possible lock your caliper and use the back-end.
Put the bottom of the caliper against the side of the flange and hold your steel marking tool against the measure pen.
Let someone help you by gently turning the hub with the bottom flange.
The result, a nice parallel marking line.

Now measure the distance between 2 spokes holes.
On this hub that's 13,5mm divide by 2.
With the results of 6,75mm
Adjust your caliper to this and lock.
Mark the halfway between the spoke holes with the calipers top by holding it in the spoke hole and gently scratch on the parallel marking line.

Now you can center where the drilling holes are going to be.
If your center point is sharp enough you can slide it in a little sideways and you will feel the marking line.
Now upright the center point and gently hit it with the hammer, dont slam it the first time because if you are off the mark you can still correct it by doing it once more.
When you are happy with it slam it once more.

Ready to drill.
Not shown in picture, I used a dremel drilling stand. .
For the best results put a slight angle on the drilling stand to go with the flanges angle (about 5 degrees)
This hub can be clamped on the axle because of the flat sides. If the axle is round use a special axle clamp to not damage the thread.
Drill the holes using a 2,5mm drill.
Debur the holes by using a machine or hand drill.
Debur the inside of the spoke holes of the flange by using a oversized drill.