Here are some simple templates to print off for jigs to simplify aligning kit and aftermarker propellers that come with individual blades. Just place the propeller hub or spinner in the centre and align the tip of each blade with the radiating lines.
3-Blade:

4-Blade:

5-Blade:

To set the pitch, cut small matching wedges from a piece of styrene or wood and position one about half-way along the leading edge of each blade (make sure you check which way the propeller rotates...).
I hope these are useful.
All the best
Rowan
