Tell us about yourself!
I use an old ford alternator with internal field removed and just some wires added. I have then built a regulator with an lm358 and a couple off high power relays to connect an disconnect the alternator output from the battery and to connect the field directly to the output. This way I have a toggle switch to switch between battery charging and welding. Works great
You should consider using a bigger battery. You won't get more power from the solar panel, but you could run the inverter at full load for more than 10 minutes at a time.
Mold Making & Casting Class
What the heck is this supposed to be good for