Originally Posted by PeterVRC
jrjr, I would do the motor alone first. I was going to make up a laser system like that one you show, but I will do it via running just the motor in the housing with the android phone balancing setup for that.
That laser setup idea is too rough to use for total fan balancing, you wouldn't see fine enough detail. (but still better than none I guess!)
Well, I have devised a plan of sorts. I already static balanced the fan and next I will do just the motor/housing assembly, maybe with the laser setup and the cellphone both just for comparison..... then assemble it and try the cellphone/clock approach and see how it comes out. Should be pretty close after that I would think. I don't have access to the high end balancing machines so homebrew will have to do. Not sure what to use for weight on the assembled unit or where to place it. Most likely duct tape to sort out the location and some sort of glue for permanent.