So after a long struggle, I have still not been able to Make my lm1084 adj output 5v. Using this diagram has not worked, and in fact actually steps up the voltage.
Note that this voltage increase is without load. With the load of an electric motor, the output power drops to 4.75 and stays there no matter the resistance applied to the adjust.
I have tried 2 lm1084's but no luck. Any ideas?