I would go with the explanation of controls of a specific machine provided by the manufacturer, at least as a good place to start. You can find the manual here- https://www.millerwelds.com/support/manuals-and-parts After entering blue star 2e it gives a listing of manuals by serial number series. Ju...

Here is a good article on the subject of CC/CV power sources and their applications.

http://www.lincolnelectric.com/en-gb/su ... utput.aspx

I've built barges for a couple of years, a couple of years ago. There were no steps taken to relieve stresses at any point in the process. For a while, the amp meter on the sub arc system for seaming the keel plates was way out of calibration and we were getting plates that looked like wings. The s...

I've built barges for a couple of years, a couple of years ago. There were no steps taken to relieve stresses at any point in the process. For a while, the amp meter on the sub arc system for seaming the keel plates was way out of calibration and we were getting plates that looked like wings. The so...

If there aren't any dimensional constraints, as in something has to fit inside of it, or it has to fit into something, then it doesn't matter in that regard. If there is tension pulling to open the members, then weld inside. If there is force that would collapse them into each other then weld outsid...

That would be my guess too since it only indicates setting voltage. In a CC mode I can imagine what long arcing on thin aluminum would do. Pain, destruction, and some very stern looks from the boss.

Something like this?

http://www.lincolnelectric.com/assets/U ... e12010.pdf

As my old instructor once said "If you see someone on fire, as a professional courtesy, please put them out.".

Just use a sharpie. Most greens don't last that long. Some dudes even do all that fancy Affliction stuff too!

Its 33 volt ocv. I have the sp-175t, and it only makes a tiny spark if you touch a connected work piece with the tip. Not sure why they really blow like that sometimes, but I have seen it happen occasionally when people are changing tips or cleaning the nozzle and set the gun down with the diffuser ...

Some welding machines have OCV (open circuit voltage), others are simply always "hot". Did this arc burn the threads of the diffuser where the tip turns in to it or where the diffuser threads in to the gun tube? Reason I ask is because that could also be the point at which you lose continu...

A good test setting I've used for .045 is 22.5-23V, wire feed at about 235 with about 1/2" stick out, maybe a little more. Slight drag angle, less than 10deg.

The right stick out is really important with dual shield. It takes a little playing with to get "just right".

So bending the electrode is the standard way to reach a restricted area like that? I don't know that it is standard, but it is pretty common. Sometimes work-overs and stuff that looks good on paper just don't translate well to the actual objects, and ya gotta do what ya gotta do. Good job on a tric...

I've gotten fine results with with a typical single cut smooth and 2nd cut file. For those, I would also give it a light brush (using a flux/acid brush) with cutting oil. Makes a super quick cut and blows out with compressed air really easy. Without it they get cruddy and can be ruined pretty quick....

Uphill can be tricky. When I've done mig open root uphill on plate I've run it at about 220-230 ipm. at 18.5V. using .035 hard wire and an 1/8th gap with a 3/32 land. Running just at the front of the pool, I bounce side to side inside of the gap being sure to get good fill in the keyhole but not fal...

If it isn't all that important, I'd just take a couple of pieces of flat bar, tap and drill them, then countersink a couple of screws into the flat bar from the outside, affixing them to the inside, then slide the top piece over and screw that to the flat bar.

I admire your sarcasm, no that is my kitchen. I have a harbor freight cheap o' folding table with my al block on top I only ask because I've seen it attempted. :o We had one at the last shop I was at, and the owner swore it would become his tombstone when the time came, or whomever cracked it, chip...

Is that a Starret slab of granite that you're welding on?

Tooth geometry can be very complicated. I used to sharpen hougen annular cutters in a shop I worked at. For it to be cost effective we had to settle with a simpler geometry than the manufacturer specs. and resulted in shorter life. The only time it really made sense was with big orders of some of th...

Another solution is to start at each end and tie in at the middle.

I like tap magic for aluminum on drill bits and burrs, and tool saver wax on norton abrasives blue fire grinding disks. A couple of quick touches with a wire brush cleans the crud and dresses the disk nicely.

I cut up an old suede jacket for material and made a little cover for the back of the hood and a little bib for under the front. Hook and loop from the craft store to hold them on. It doesn't seem to restrict breathing at all. I also keep the adjustment knobs on the halo pretty snug. Never liked doi...

Thanks!

Turn it up side down?

Looks like you might be long arcing your starts on the open butt plate and have a bit of inconsistent travel speed on the same. Try clamping your stinger a few inches lower on the rod or find a more comfortable position. I don't see any undercut or porosity. Looks good. Maybe add a little more meta...

Hi, my name is Pete. I've been a big fan of the youtube channel and these boards for a while, and figured I'd join today. I went to tech school, have a few certs, passed a bunch of qualifiers, but really first learned by watching robots. I also just really like welding, bs'ing about welding, and oth...