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Old 07-06-2016, 07:06 AM   #801
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Originally Posted by rleete View Post
Manual Tire Changer machine
Manual Tire Changer

Win, with reservations. It works, but it's a hell of a lot of effort to save a few bucks. Unless you're changing tires every week, it's probably not worth the hassle.
I was changing ATV tires, and because of the smaller diameter, they are MUCH harder to stretch on than a regular car tire. Took two of us lots of muscling to get them on.

Bolted to some scrap plywood was barely adequate. Would have been much better bolted down to a concrete floor, but you've gotta want to change a lot of tires to make it worth the floor space.

I still have to pay to discard the old tires.
There's a guy locally selling one of these on Craigslist that's implanted in a 280 pound slab of concrete. Bring a forklift, or your rugby team, I guess? He claims he's used it many times to replace his big-*** ten-ply diesel truck tires and it works super-duper good. Only $50!
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Old 07-06-2016, 07:17 PM   #802
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I vote set the bead on with fire.
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Old 07-06-2016, 09:41 PM   #803
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I'll update my opinions this weekend. My Lincoln NR-211 0.030" should be in the mail today.
2 updates with the HF flux core.

The Lincoln wire was a pretty good improvement. It started to actually penetrate and showed signs of flux actually doing it's job.

Then I got a rectifier and giant capacitor and converted it to DC electrode negative. So for a total of $140 into it, it's actually pretty legit. The beads look just like MIG beads should! I'll have to throw down some beads that aren't just on an old rusty brake rotor and post some pics. For just under $200, the 220V flux core/mig comes with DCEN instead of AC, but I don't have access to 220V in the garage.
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Old 07-07-2016, 12:13 AM   #804
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2 updates with the HF flux core. The Lincoln wire was a pretty good improvement. It started to actually penetrate and showed signs of flux actually doing it's job. Then I got a rectifier and giant capacitor and converted it to DC electrode negative. So for a total of $140 into it, it's actually pretty legit. The beads look just like MIG beads should! I'll have to throw down some beads that aren't just on an old rusty brake rotor and post some pics. For just under $200, the 220V flux core/mig comes with DCEN instead of AC, but I don't have access to 220V in the garage.
I'm interested in more details on your mods to the welder. I'm considering one of these.
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Old 07-07-2016, 12:39 AM   #805
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Originally Posted by acedeuce802 View Post
2 updates with the HF flux core.

The Lincoln wire was a pretty good improvement. It started to actually penetrate and showed signs of flux actually doing it's job.

Then I got a rectifier and giant capacitor and converted it to DC electrode negative. So for a total of $140 into it, it's actually pretty legit. The beads look just like MIG beads should! I'll have to throw down some beads that aren't just on an old rusty brake rotor and post some pics. For just under $200, the 220V flux core/mig comes with DCEN instead of AC, but I don't have access to 220V in the garage.
Funny you should mention the 220 mig, as I've been toying with it for a few weeks now. I bought it to use exclusively with my 6500w predator generator.
I'll try to get around to reviewing both this week.
I would be interested in more details about the mods you made.
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Old 07-07-2016, 01:07 AM   #806
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WIN: Propane Torch

We burned two 50 gallon drums tonight in preparation for smoker builds. Torch worked great, turned the barrels red and had no problems burning through some tough *** paint. I wouldn't want to use it for driveway weed destruction, the 6.5' hose is far too short and means your carrying a 20lb propane tank in one hand. $17 and change after 20% off and tax.

Before fire
Harbor Freight Win-or-Fail Thread-img_20160706_203956.jpg

With fire
Harbor Freight Win-or-Fail Thread-img_20160706_203951.jpg
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Old 07-07-2016, 09:36 AM   #807
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Modifying the Harbor Freight 120v welder (if you already own one) - Fab Shop - Drive On Wood!

Here is a write up on this. Basically, find the 8 gauge wires that go to the ground clamp and to the torch handle. Cut these and wire them to the ~AC side of a bridge rectifier (I used a three phase 1600V 150amp but just used two of the phases). The positive side of the rectifier goes to the positive side of a capacitor (I used a 75V 68000mF cap) and then out to the ground plug (yes it's direct current electrode negative, so the ground clamp is high and the torch is low). The negative side of the rectifier goes to the negative side of the cap, then out to the torch. Most of these write ups say to replace the fan, but the newer style of welders come with a computer style fan, rather than the open fan it used to use.

A note about the cap, the bigger the better, but it has diminishing returns. I found a cheap cap on eBay that was larger than what is typically used, and it just barely fits inside the welder.

Here's a picture of what it can do. This was the first weld I tried without messing with wire feed. I just set it to the 6 setting. I'll have to dig up the video I found of someone actually figuring out how many IPM each setting is. The booger weld in the background is the old weld, unfortunately not back to back since that's on a solid brake rotor, but you get the idea.

Harbor Freight Win-or-Fail Thread-snapchat-70282368313292555_zpsce1u0b2c.jpg
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Old 07-09-2016, 01:46 PM   #808
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Anyone try the 50ton shop press on here?
Thinking of buying one for the boys in the shop.
50 Ton Hydraulic Shop Press
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Old 07-09-2016, 07:56 PM   #809
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Quote:
Originally Posted by acedeuce802 View Post
Modifying the Harbor Freight 120v welder (if you already own one) - Fab Shop - Drive On Wood!

Here is a write up on this. Basically, find the 8 gauge wires that go to the ground clamp and to the torch handle. Cut these and wire them to the ~AC side of a bridge rectifier (I used a three phase 1600V 150amp but just used two of the phases). The positive side of the rectifier goes to the positive side of a capacitor (I used a 75V 68000mF cap) and then out to the ground plug (yes it's direct current electrode negative, so the ground clamp is high and the torch is low). The negative side of the rectifier goes to the negative side of the cap, then out to the torch. Most of these write ups say to replace the fan, but the newer style of welders come with a computer style fan, rather than the open fan it used to use.

A note about the cap, the bigger the better, but it has diminishing returns. I found a cheap cap on eBay that was larger than what is typically used, and it just barely fits inside the welder.

Here's a picture of what it can do. This was the first weld I tried without messing with wire feed. I just set it to the 6 setting. I'll have to dig up the video I found of someone actually figuring out how many IPM each setting is. The booger weld in the background is the old weld, unfortunately not back to back since that's on a solid brake rotor, but you get the idea.

Attachment 176226
Maybe my search skills are crap, but all the large uF capacitors I could find on eBay are priced exorbitantly. 50v 50,000uF - $60. That seems average. At that price, There's not much point in doing the project. I can get the bridge rectifier for $10, but capacitors are just too pricey to justify.
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Old 07-10-2016, 08:49 AM   #810
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Quote:
Originally Posted by Erat View Post
Anyone try the 50ton shop press on here?
Thinking of buying one for the boys in the shop.
50 Ton Hydraulic Shop Press
I have the 20 ton and I am very happy with it. I wouldn't expect the 50ton to be any worse.
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Old 07-10-2016, 05:10 PM   #811
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Quote:
Originally Posted by Dann0 View Post
Maybe my search skills are crap, but all the large uF capacitors I could find on eBay are priced exorbitantly. 50v 50,000uF - $60. That seems average. At that price, There's not much point in doing the project. I can get the bridge rectifier for $10, but capacitors are just too pricey to justify.
New Mallory Screw 68 000uF 75 Volt Terminals Computer Grade Capacitor | eBay

This is the one I used, $35. I would agree that it's probably in best interest to find a cheap flux core on craigslist that is already better quality, But, if you have a HF flux core laying around, or get a really good deal on one and you like to tinker, this isn't a bad way to go. I am in $146.65 in this welder.
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Old 07-11-2016, 02:07 AM   #812
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This seemed like the best place to post this, For those of you who are familiar with AvE, you may be interested to know he's endorsed this little bargain boroscope:


For those who aren't familiar with him, you are simply missing out.


For all of $9.99 delivered, I went ahead and ordered one.
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Old 07-11-2016, 02:36 AM   #813
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I have one of those boroscopes- it works well but its starting to fall apart. Still, at $10 I can just replace them as needed.
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Old 07-11-2016, 11:46 AM   #814
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cheap caps:
Radial Capacitors

note the 15,000 uF for 3.99 each. connect in parallel.
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Old 07-11-2016, 11:55 AM   #815
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Originally Posted by shuiend View Post
I have the 20 ton and I am very happy with it. I wouldn't expect the 50ton to be any worse.
Is yours air powered hydraulic? I think the 50ton is, but I can't see it described anywhere.
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Old 07-11-2016, 02:02 PM   #816
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Is yours air powered hydraulic? I think the 50ton is, but I can't see it described anywhere.
Not air powered, I have a pole like thing that you pump up and down just like a jack.
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Old 07-11-2016, 03:10 PM   #817
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Quote:
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Is yours air powered hydraulic? I think the 50ton is, but I can't see it described anywhere.
According to the reviews, it is air powered with a manual backup.
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Old 07-11-2016, 05:51 PM   #818
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Air over hydraulic is ****. My greg smith equipment 20ton has that. Works great for wheel bearings. Only complaint is it leaks at the pressure gauge joint under extreme load.
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Old 07-12-2016, 02:49 AM   #819
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I have been looking at the Forney 125 flux welder on Amazon as a possible alternative to the Harbor Freight unit, but one of the reviewers said he hooked his multimeter up to it and found that it was putting out AC as well, rather than DC electrode negative. I guess I'll get the HF unit and do the mods. I found these 63v 22000uF capacitors on eBay for $3.38, so I'll just run three of them in series with a bleed resistor.

Edit:

Just bought the stuff for the welder mod - $27 all in. With the $99 coupon for the welder, that puts it in pretty cheap territory.

Last edited by Dann0; 07-12-2016 at 03:10 AM.
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Old 07-12-2016, 10:52 AM   #820
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Quote:
Originally Posted by Dann0 View Post
I have been looking at the Forney 125 flux welder on Amazon as a possible alternative to the Harbor Freight unit, but one of the reviewers said he hooked his multimeter up to it and found that it was putting out AC as well, rather than DC electrode negative.
I didn't sift through all the reviews to find that one comment, but I can tell you that in any DC power supply with a rectifier-based output (and, really, all a MIG welder is is a big DC power supply), there will always be ripple on the output. And when measured with a multimeter, this ripple will show up as an AC waveform.

Like, if you look at a PWM-controlled circuit under the hood, like the idle valve. PWM DC isn't the same thing as true AC, but a multimeter can't tell the difference.

This is one reason why oscilloscopes are so nice; you can use them to visualize the magnitude of the ripple relative to the DC carrier, to determine whether or not it's going to be a big deal.
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