Originally Posted by prathmann

4x on a 32-spoke wheel will have the spokes leaving the hub exactly tangentially. The angle of the spoke relative to radial is calculated by dividing 360 deg. by the number of spokes on each side of the hub (16 in this case) and then multiplying by the number of crossings; so 360/16 x 4 = 90 degrees. That might be ok depending on the hub - but check that having spokes leaving at 90 degrees won't interfere where they leave the hub. 4x is commonly used on 36 or 40 hole hubs where the angle will be less than perfectly tangential 360/18 x 4 = 80 degrees for 36 hole and 360/20 x 4 = 72 degrees for 40 hole.