Tell me what you think

[Scott V]

AC,

There is no doubt the MM210 is the better machine. It is also in a different class. The DVI 175 ranks between the MM175 and the MM210. It is indeed a hobbyist type machine designed for the 120VAC household garage use. If 220VAC input power is available then the machine certainly has a much stronger output. However, the output of the DVI is substantially less than the MM210. I do beleive the DVI 175 compares more closely to the MM210 than the MM175, but is is in no way close to the same machine as the MM210. As we who have spent our lives welding know there is more to a power source than amperage and duty cycle ratings.

After I made that post on the spray arc I spent several hours this evening trying to reproduce the results I obtained earlier in my testing. Unfortunately after 5 lbs of .030" ER70S-6 and several cubic feet of 92ar/8co2 I failed to get a consistent spray arc. I was using a canadian mild steel 3/16" channel 2" wide with a 3/8" lip for the base metal. The machine was powered by a 240 VAC 50 amp circuit. I burned a half dozen contact tips and two nozzles in my attempt to get a good clean flawless weld in the spray arc mode. I guess all the conditions were just right that day it happened.

On the other hand the DVI is a flexible usage short arc machine and will cross the barrier into spray for that occassional need should it arise. I think it is a great machine within its class and see it setting a precedent for a new market niche. I like having one in my shop for the pure simplicity and ease of use. I also have the 300 and 400 amp multi process machines when the duty calls.

It seems about the output of a MM 185. I had mine spraying on .030 with 90/10 but it would not do it all the time. That is kind of what I thought would happen with the DVI

[cope]

It seems about the output of a MM 185. I had mine spraying on .030 with 90/10 but it would not do it all the time. That is kind of what I thought would happen with the DVI

Scott & Hawk.

I had a similar situation with the HH 140. When I field tested it I was welding1/8" at door chart numbers but the one I bought I have to crank wire spped way up to get the same welds. At chart setting I get a soft hissing and slowly melting wire. I guess I need to contact the Hobart guys. I've had the machine a couple of months and never used that particular setting until Sunday when my son-in-law wanted to try it out.

[HAWK]

cope,

I wonder if it's a bad pot? Definitely get it fixed under the Big W!