Welder mods

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I've modified my Lincoln Ac 225 to go dc 225 and I put quick connects for the leads. Also I put a power supply for a gas solenoid so the machine tigs good. Has anyone else done any cool modifications to their stick welders?
Reply:How much $ did this set you back? Was it worth it considering that for a couple hundred $ more you can buy it with DC from the factory?JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:Any pics? How big are the rectifier diodes and Caps?Sent from my iPhone using Tapatalk
Reply:I've been doing research on building a high frequency box. I'm not a guru but it doesn't seem difficult. One problem I think is that it is much better to have an AC square wave than the sign wave. The sign wave also gives off a lot more electro magnetic interference. Sent from my iPhone using Tapatalk
Reply:the price including the machine+diodes was about a hundred bucks. I used a power lug to do some tig welding. I'm working on putting a gas solenoid and relays in so i can control the current and gas with the torch. after i finish with the gas solenoid it will be floating around the 175 mark. The reason i did this mod is because i'm just starting out welding and I'mon a budget. Also i cant find a reasonably priced ac/dc tombstone in my area. And finally just cause I'm good with electronics. I have videotaped most of the conversion process and put on youtube here https://www.youtube.com/playlist?lis...dvEYtLdSqaQn3S
Reply:It's an interesting project for sure. In its current state its main disadvantage is that it's still a tapped amperage controlled welder. Not the best set up for DC tig welding. Your stick beads it's running show a lot of porosity.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:That is one big disadvantage the tapped amperage. I saw somewhere that you can put a dimmer switch on the welder as a fine control. Sent from my iPhone using Tapatalk
Reply:This is pretty cool...  Im assuming this is what you did to your welder to a lesser degree....http://hildstrom.com/projects/ac-225/-JimmySyncrowave 200Millermatic 211 Auto-Set w/MVPSpoolmate 100Hypertherm Powermax 45
Reply:Yea I stole some ideas from there... I'm not using hi-freq I'm just using the gas solenoid and relays to turn the power on and off. I'm not sure but I think I might be able to get a wire feeder to work with it when I get the relays in. Does anyone know if I can use solid state relays in the Machine since it isn't true DC current Sent from my iPhone using Tapatalk
Reply:You could prolly figure something out, but you need to find a CC wire feeder, most mig feeders are CV.-JimmySyncrowave 200Millermatic 211 Auto-Set w/MVPSpoolmate 100Hypertherm Powermax 45
Reply:I really want to use a ln7 feeder but I know it's cv. Aren't the miller suitcase feeders both cc/cvSent from my iPhone using Tapatalk
Reply:Originally Posted by Gmahaffey16I really want to use a ln7 feeder but I know it's cv. Aren't the miller suitcase feeders both cc/cvSent from my iPhone using Tapatalk
Reply:Thanks for sharing. I'm trying to learn electronics more in depth to learn how welders work in detail and for modifications Sent from my iPhone using Tapatalk
Reply:I made my 235 amp craftsman welder selectable between AC and DChttp://ecorenovator.org/forum/attach...id-ir_0120-jpgThen I took this $100 used 100 amp 110 volt powered craftsman welder made it AC/DC and then tig.http://weldingweb.com/vbb/showthread.php...c-welders-suckIts a sweet little tig welder I built for about $250 to $300 and its not one of those cheap Chinese inverters.old Miller spectrum 625 Lincoln SP-135 T, CO2+0.025 wireMiller model 250 and WP-18V torchCraftsman 100amp AC/DC and WP-17V torchCentury 115-004 HF arc stabilizerHome made 4 transformer spot welderHome made alternator welder
Reply:I'm also looking at a way that I can make it constant voltage too. I need to research more Sent from my iPhone using Tapatalk
Reply:The LN 25's are voltage sensing feeders, meaning they will run on a cv or cc power supply. I don't think your going to like the arc while running a LN 25 on a AC/DC 225/125 power supply.  The factory 225/125 puts out 25 arc volts at 20% duty cycle.  An LN 25 on an Invertec v350 pro in cv mode is the sweetest thing there is.JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:Originally Posted by Gmahaffey16I'm also looking at a way that I can make it constant voltage too. I need to research more
Reply:If I bought a ln-7 or other cv wire feeder couldn't I hook a separate power supply to it ?Sent from my iPhone using Tapatalk
Reply:Originally Posted by Gmahaffey16If I bought a ln-7 or other cv wire feeder couldn't I hook a separate power supply to it ?Sent from my iPhone using Tapatalk
Reply:Can't believe anyone would go to the trouble of converting a low end buzz box when you can buy a new inverter for about $300 that's a superior machine. If you think you can run an LN25 feeder of your converted AC 225 you're dreaming. Even a used LN25 and a decent machine to run it is going to be a little pricey.
Reply:Originally Posted by Gmahaffey16I've modified my Lincoln Ac 225 to go dc 225 and I put quick connects for the leads. Also I put a power supply for a gas solenoid so the machine tigs good. Has anyone else done any cool modifications to their stick welders?