I finished it!
It is a JAVA Applet, so you might not be able to see it unless you have a newer version.
UPDATE: Greatest damage shown is now damage at shortest and greatest distance
UPDATE: Fixed error with Fairy Orbitars, matched Gemini's forward charge damage with a different source
UPDATE: Changed layout of the displays of data; now the min and max are shown together in the same box; please remember that the min and max means "Range" not "Damage"
-Continuous fire damage is all for one hit
-In general, all charge fire damage is the entire attack, adding together multiple hits
--Upperdash Arm's and Shock Orbitars Back Charge damage, Electroshock Arm's Charge Shots damage are all one hit
--Great Reaper's Palm and Eyetrack Orbitar's Charge Shot damage are all one way around, so it doesn't consider the extra damage dealt when the attacks come back around
-Orbitars except for Guardian shows only one shot damage, but since each attack releases two shots, you need to multiply by 2 for the full damage
-Damage shown are the damage at the shortest range and the damage at the greatest distance. Depending on the weapon, the strongest could be the shortest or could be the greatest.
-All damage from JP Wiki, or if they don't have it, I tried to test the ones I could, and the rest from:
It's big and heavy, so I'll cover it with a "Read more" line...