a little help here

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I have an ESAB MigMaster 250 with spool gun and argon setup. Machine and spool gun has only run steel wire and now need to run aluminum. I need some base line settings for  the spool gun and thru the machine feeding. No matter what I do with either setup, it just bird nests on me everytime. Runs great and always has with .035 and .045 steel wire setup.  Here's what I got.   ESAB MM250 with standard gun with new teflon liner (for aluminum) and ESAB spool gun. Both setup with  L-TEC 5354 .035 wire spools and straight ARGON gas. The machine is a non digital setup. Just three dials, Wire speed 1-10, Fine voltage 1-8 and main  voltage LOW-MED-HIGH.  The spool gun has only one setting adjusting knob (0-9) for wire speed. I am welding aluminum NPT tank bungs to an aluminum tank. Tanks are 1/8" aluminum (4053). Always tig welded these but need to MIG do to the specs ( not sure why, thinks it's due to speed and cost). Any help would be great.ThanksTonyESAB250w/spool gun attachMillerBobcat 225GMIllerEconotig 150MillerSynchrowave 350LincolnLn25Miller Xtreme 12SHobartMegaArc 300DMillerTrailblazer 44G2004FL70 14'mechanics body14k crane 70cfm compr
Reply:Hi Tony you may want to go to the Others Manufacturer's Forum and post your question in the ESAB forum! You'll find others may have had similar problems and questions and may help you.Co-Own CNC shop:Miller :1251 plasma cutter, MaxStar 700 TIG/Stick, & XMT 456 Multiprocess Welder.&  2 Hypertherm HPR260's Plasma CutterSorry I had a bad stroke but now I am back.
Reply:Have you gotten drive rollers for aluminum?  That might be the issue.Esab Migmaster 250Lincoln SA 200Lincoln Ranger 8Smith Oxy Fuel setupEverlast PowerPlasma 80Everlast Power iMIG 160Everlast Power iMIG 205 Everlast Power iMIG 140EEverlast PowerARC 300Everlast PowerARC 140STEverlast PowerTIG 255EXT