Checking wheel alignment is a baseline thing... should not need to be repeated unless the bike is subjected to heavy impacts or stresses. I'd find it quite tiresome and awkward to check wheel alignment with boards/string/etc each time the chain is tensioned. Only really useful if the frame, forks and swingarm are known to be straight and square. If this is not the case, getting the wheels in line does not mean the chain run is correct!
The Motion Pro gadget looks to be a handy bit of kit capable of doing just what it needs to, reckon I'll copy it. Might incorporate Capes laser pointer idea as well.
Beats messing around with the 750mm calipers to measure from swingarm pivot to axle centres. Usually something or other in the way.
Anyway, wheel alignment seems to be grossly over-rated, lots of production bikes out there with wonky wheels. Early Beemer airhead GS had either the front or rear rim off-centre, to clear either the brake caliper or the single sided swingarm... iIrc, it was as much as 8-10mm difference front to rear.
piet
The Motion Pro gadget looks to be a handy bit of kit capable of doing just what it needs to, reckon I'll copy it. Might incorporate Capes laser pointer idea as well.
Anyway, wheel alignment seems to be grossly over-rated, lots of production bikes out there with wonky wheels. Early Beemer airhead GS had either the front or rear rim off-centre, to clear either the brake caliper or the single sided swingarm... iIrc, it was as much as 8-10mm difference front to rear.
piet