i had an idea for a soldering iron that works kinda like a glue gun except it shoots solder instead of glue i also have the hardest time soldering stuff and getting just the right amount of solder on them so if you could make this that would be awesome.
If you have ever seen a MIG welder AKA a wire welder you will see that they have a spool of wire either on the handle or inside the welders casing which is turned with an electric motor, we could use that same method except with solder wire. Also a feature on the welders there is a switch on the handle that extrudes the wire that activates the motor that turns the spool would also be required to solder properly. 
