Ignorant question .......

Tue, 31 Aug 2021 15:25:49 GMT

go to see Welding Machine for Ignorant question .......

I should know this .... I know...  but I don't.You see my previous welders were from 1969 and 1950 or so.   Now I have the dynasty 200 dx and I LOVE it.I have only just started to stick weld with it.  It has a control called "Dig" whichcan be adjusted from 0 to 100.   The manual didn't explain what dig is.   I calledmiller and the fellow I talked to ,while helpfull, appairently wasn't a welder and really couldn't/ didn't explain what dig is doing.   I am guessing it is something to do with penetration or a "hard" - "soft" adjustment.But none of my old welders had that!   Can some one clue me in ???????My appologies in advance for having to ask a "did you try plugging it in" question !I also just got a new hood.  3m 9100x . WOW its GREAT  !!!!!!!!!!!!!!!!!!!!!!!!!!!!100% reccomend it to anyone.  With the see through side pannels I can walk throughthe shop and not even have to raise it if I don't want to !  Crystal clear too !Tim
Reply:Tell you what, bring it over to my place and I'll try it out for awhile and get back to you, how's that sound? City of L.A. Structural; Manual & Semi-Automatic;"Surely there is a mine for silver, and a place where gold is refined. Iron is taken from the earth, and copper is smelted from ore."Job 28:1,2Lincoln, Miller, Victor & ISV BibleDanny
Reply:Originally Posted by tanglediverTell you what, bring it over to my place and I'll try it out for awhile and get back to you, how's that sound?
Reply:"Dig" control on a Miller is the same as "Arc" control on a Lincoln ,(hard, soft)---essentially it's inductance.  Sometimes when I am welding a bore with a bore welder and using a power source without these adjustments, I will take a 4" or so piece of pipe that's a couple feet long, or a similar sized piece of solid stock and wrap 4 or so turns of my ground lead around it, try it and maybe wrap a few more turns or take a couple off, this does the same thing as using the dig, or arc control.--Matt6 Miller Big Blue 600 Air Paks2 Miller 400D6 Lincoln LN-25's4 Miller Xtreme 12VS2 Miller Dimension 812 4 Climax BW-3000Z bore welders Hypertherm 65 and 85Bug-O Track BugPair of Welpers
Reply:I had the same question back when I got a Dynasty, which was my first machine designed as an inverter TIG.  Best description I ever saw was the one on the Miller site:http://www.millerwelds.com/resources...rticle108.htmlI know since you've stick welded before, and if you've had lots of hood time, you know exactly what happens as you increase and decrease arc length...Increase arc length = increase voltage and decrease amperagedecrease arc length = decrease voltage and increase amperageSo, you use this "characteristic" to your advantage depending on the circumstance to manipulate weld quality and appearance.So, CC Inverters are designed to maintain CC (obviously ), and thus when stick welding you don't necessarily get the results you expect when increasing or decreasing arc length as described above (the CC inverter is "fighting the change"), thus the DIG control.  DIG is arc force control and basically allows you to tailor the volt/amp curves.  When arc length decreases to a point where voltage drops below a certain level, DIG will kick in and boost the amperage of the welder.So, bottom line, it's about controlling how the CC inverter machine responds to arc length changes.Anyway, I won't try to re-invent the wheel here, have a looksee at the link above, it should clear up the mystery for you.Last edited by turner; 07-11-2011 at 07:31 PM.Dynasty 200DXBobcat 250, TD Cutmaster 38 Hobart Stickmate AC/DC LXHobart 210 Mig / SpoolgunCentury Mig, O/A rigPress/Ring Roller/Tubing Roller/Hyd. Pipe BenderJD2 Notcher/IR 80gal 5hp compressorportaband/chopsaw/grinders/etc.
Reply:Thanks Turner !I suspected it was something to do with hard/soft.  But the CC part does make it conceptualy more complicated.  I will definately go to your miller link (hope it still works)For all you guys anxious to try out me new welder you should know it is a package dealthat includes a huge oak chair which has copepr ankle straps and a copper beanie.You have to wear that while you test it......  but you have to supply your own fire extinguisher !   I hope that doesn't shock anyone...You can also get "fries with that" too !    (well done of coarse)The ONLY way the dynasty 200 dx could be better is if it was the 350 !Tim
Reply:I recall reading about dig in my manual, and just found it in the manual online (page 34)IG - If the Stick process is active (seeSection 5-8), use control to set amount ofDIG. When set at 0, short-circuit amper-age at low arc voltage is the same as normal welding amperage.When setting is increased, short-circuitamperage at low arc voltage increases.Application:Control helps arc starting or making ver-tical or overhead welds by increasingamperage at low arc voltage, and re-duces electrode sticking while welding.This is not really inductance (but it will feel similar).  Inductance will help a transformer machine maintain it's current as arc voltage rapidly drops in a short arc.  An inverter doesn't need that, as with dig set to 0, the Dynasty will happily maintain the current you selected over a wide range of voltages.With dig at it's maximum, the Dynasty will provide a burst of power just when you think you may stick a rod.