building a freya X spec do you always check the starter and main shaft with a dial indicator and i didn't use it on my raptor 50 and it's fine .is it sop for all building of helies

I don't usually check the shafts on a new model. I do dial the fan/clutch assembly and depending on the model, the clutch shaft too. You could go ahead and dial every rotating part (will probably produce a very smooth heli), but I think you can get by with just the fan assembly.

Ben

What type of dial gauge is best for helis ? Any links ? Thx !

You can go overboard with the testing of all the parts...

Just what are you going to be able to DO to correct a clutch if it doesn't pass your dial idicator testing? (just about nothing) If the egine crankshaft is straight, the clutch system is going to be about as straight as its going to get without buying a new clutch.

Just roll the shafts on a glass tabletop and if there's no appreciable wobbleing noise noted, its probably good. You can hear the difference when you roll a warped shaft vs a straight one. No need to spend the $$$ for a dial indicator. The ones under $50 aren't worth getting and the expensive ones will just drive you nuts with checking more stuff than you need to.

We're in the beginner's forum... not the 3D and high performance hop-ups area.