Dynasty 350 stuff

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I have been using a 1.3 ratio ( EN to EP)   since I got my machine......After talking with Shovelon  we pretty much decided I don't need the heavy Helium Argon mix I was used to with my Lincoln Transformer machinewhich was Blueshield 3  (75Helium 25 argon)  he said he still uses Helium mix but only about 12% .......I had a bottle of Blueshield 1 (25 Helium 75 Argon)  so I started using it to see if I could make it work......I was having a really tough time being used to the extra heat from the heavy mix and went to the Blueshield 2  (50/50)  Now this was being used on 1/4 in. thick stuff and when it got time to weld up some thinner material it seemed like over kill....I remembered Terry said he was using a 1.2 ratio so I punched in that number and all of a sudden everything got happy with the 25 helium 75 Argon mix, I had been running too much EN  for my needs and the Dynasty is sensitive enough to respond to thatchange.......So now I have to go back to the memory settings I have stored and make some changes........I'll probably still use the 1.3 ratio for some parts but the thinner stuff will definitely use the 1.2    Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock
Reply:I wonder how long it will take just to learn most of the permutations of that machine>>>>>      Backed my CATMA over your CARMA oops clusmy me  What would SATAN do ?? Miller Trailblazer 302 AirPakMiller Digital Elite  Optrel Welding HatArcair K4000Suitcase 12RC / 12 VSHypertherm PM-45Rage 3 sawRusty old Truck
Reply:B.C. My 300DX doesn't have that option, but I'm still curious.  Are you saying "1 to 3" or "1 to 1.3"?Thanks,Dynasty 300DXSmith He/Ar gas mixerMM350PHobart Handler 120Smith LW7, MW5, AW1A
Reply:Originally Posted by 4sfedB.C. My 300DX doesn't have that option, but I'm still curious.  Are you saying "1 to 3" or "1 to 1.3"?Thanks,
Reply:Originally Posted by Oscarmy question exactly.
Reply:Originally Posted by shovelonI know, I know.1.3 EN to 1 EP, or 1.2 EN to 1 EP
Reply:Originally Posted by OscarSo basically for 1.3EN : 1 EP we're looking at approx 57%ENand for 1.2 EN : 1 EP, we're looking at approx. 55% EN.Seems like such a tiny difference, but what do I know, lol
Reply:Like a programmable electronic wave generator on steroids Man is that thing sophisticated or what .I only got to run it at the miller event for 20 min but it was the best tig machine i ever messed with and i was using there settings and listening to the guy talk about all the thing you could change and it was overwhelming to me Keep talking guys i am learning a lotBacked my CATMA over your CARMA oops clusmy me  What would SATAN do ?? Miller Trailblazer 302 AirPakMiller Digital Elite  Optrel Welding HatArcair K4000Suitcase 12RC / 12 VSHypertherm PM-45Rage 3 sawRusty old Truck
Reply:Originally Posted by shovelonEN is straight polarity. EP is reverse polarity.
Reply:I have a gut feeling B_C really means 1:3 EP:EN ratio when he writes "1.3" (and similarly for "1.2").  This would indicate there is 3x as much time on the EN portion compared to the EP portion of the AC waveform, if I'm correct.Therefore a 1:3 EP:EN would indicate 25% EP/75% EN, and 1:2 would indicate 33.3% EP/ 66.6% EN in such a situation.  In my limited scope and knowledge this seems to be more plausible than a 2% change in the EN portion of the AC wave.  In my mind it makes sense--he said he had been running too much EN for his needs and it was overkill for the thinner stuff.  A ~9 percentage change, from 75%EN down to 66.6% EN, seems like what's going on.  To me that is....So, B_C, which is it?  Last edited by Oscar; 02-22-2013 at 04:59 PM.
Reply:Originally Posted by OscarI have a gut feeling B_C really means 1:3 EP:EN ratio when he writes "1.3" (and similarly for "1.2").  This would indicate there is 3x as much time on the EN portion compared to the EP portion of the AC waveform, if I'm correct.Therefore a 1:3 EP:EN would indicate 25% EP/75% EN, and 1:2 would indicate 33.3% EP/ 66.6% EN in such a situation.  In my limited scope and knowledge this seems to be more plausible than a 2% change in the EN portion of the AC wave.  In my mind it makes sense--he said he had been running too much EN for his needs and it was overkill for the thinner stuff.  A ~9 percentage change, from 75%EN down to 66.6% EN, seems like what's going on.  To me that is....So, B_C, which is it?
Reply:I guess I stand corrected.  2% change it is!
Reply:Now for 1/4" and up I have been using 1.5:1 using straight Ar with good results. Still setting up my gas mixer for He, then I'll start playing with mix and ratio.(2) Miller Dynasty 350 (1) Miller 250x (1) Torchmate 4x4 with PM 45
Reply:Originally Posted by OscarI guess I stand corrected.  2% change it is!
Reply:Originally Posted by Mr. Moose1:1.2 is a 20% difference, not a 2% difference
Reply:Originally Posted by Mr. Moose1:1.2 is a 20% difference, not a 2% difference
Reply:Originally Posted by OscarI'm not talking about the difference between EN:EP.  I'm talking about the difference between using a 1:1.2 ratio to a 1:1.3 ratio.  That is a 2% difference between those two ratios.1:1.2 EP:EN is equivalent to 45% EP/55% EN1:1.3 EP:EN is equivalent to 43% EP/57% EN.
Reply:Originally Posted by shovelonAre you talking balance adjustment here?
Reply:Originally Posted by OscarI'm not talking about the difference between EN:EP.  I'm talking about the difference between using a 1:1.2 ratio to a 1:1.3 ratio.  That is a 2% difference between those two ratios.1:1.2 EP:EN is equivalent to 45% EP/55% EN1:1.3 EP:EN is equivalent to 43% EP/57% EN.
Reply:Wow, it has taken me a billion hours to get to where I'm at right now........I recently started using some new filler Terry sent me for my Birthday which is 4943...I was using 4043 and this new filler is much nicer to apply even though you don't notice really how much till you burn 10 Lbs and then go back to the 4043....What this has to do with the EN-EP ratio is that I stumbled onto the change when Terry told me I was using waaaaay  too much Helium in my mix......when I tried the lesser mixture it seemed like the Arc was just pushing the puddle around rather than wet it out...I have been using a 1.3 ratio (EN to EP more EN)  and with the heavy Helium content it worked fine.......Seems the more EP you run the hotter the arc becomesneeding less Helium.....but getting less penetration.....So thats something you have to figure out.....None of my over  700 lift parts have failed so the design is pretty much over kill and you would be safe no matter what you came up with...That said I tend to lean toward the cosmetic side of things and use a bit more helium and more EN.......Now that should really get everyone confused so call Terry its his fault..LMAO  Miller Dynasty 350Twenty Six HammersThree Crow BarsBig Rock
Reply:Originally Posted by Mr. MooseOscar, as you pointed out, this is not a balance issue, it's the setting of a lower amperage for the EP phase of the cycle.1/1.2 means the EP amperage is 20% lower than the EN, across the range of amperage settings.  Think EP 100; EN 120.1/1.3 means the EP is 30% lower than the EN across the range of settings.  Think EP 100; EN 130That's just about an 8% difference, I think.  (120/130).