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Tons of dross with my new Spectrum 375

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  • vtwin4life
    replied
    Originally posted by harcosparky View Post
    Is there any doubt it will be remedied soon?
    I should think not. After all you have Scott's word.
    And a ton of witnesses !!!!

    Ya know it woulda really been bad if they hooked it up and could not duplicate the problem. The worse kind of trouble on an electrical device is one that cannot be duplicated.

    Soon you will have a fully functional Spectrum 375 and this will all be a distant memory!
    Yes, I agree. I am very happy that the problem was easy to reproduce. Often at work, I deal with issues that are not easily replicated and that really throws a wrench in the works.

    I spoke with Scott this morning, and a new machine should be headed my way.

    Leave a comment:


  • harcosparky
    replied
    Originally posted by vtwin4life View Post
    This morning I took my Spectrum 375 to the service center. Sure enough, they hooked it up and got the same results, lots of dross on the bottom of the cut, and the machine struggled to cut 16 ga. steel. They told me that it looks like some kind of internal power issue.

    So, I left my unit there, and now it's in Miller's hands. I'm out a ton of cash and 2 weeks worth of messing around diagnosing this thing, so I hope my situation is remedied soon.

    Is there any doubt it will be remedied soon?
    I should think not. After all you have Scott's word.
    And a ton of witnesses !!!!

    Ya know it woulda really been bad if they hooked it up and could not duplicate the problem. The worse kind of trouble on an electrical device is one that cannot be duplicated.

    Soon you will have a fully functional Spectrum 375 and this will all be a distant memory!

    Leave a comment:


  • vtwin4life
    replied
    This morning I took my Spectrum 375 to the service center. Sure enough, they hooked it up and got the same results, lots of dross on the bottom of the cut, and the machine struggled to cut 16 ga. steel. They told me that it looks like some kind of internal power issue.

    So, I left my unit there, and now it's in Miller's hands. I'm out a ton of cash and 2 weeks worth of messing around diagnosing this thing, so I hope my situation is remedied soon.

    Leave a comment:


  • garth
    replied
    Glad to hear scott got it worked out for you with the service center.

    Leave a comment:


  • vtwin4life
    replied
    Originally posted by harcosparky View Post
    I bet yer arms fall off trying!

    There has to be an easy answer, hopefull vtwin4life will make the phone call as suggested above.

    But I was a bit surprised that I was able to fire off the 375 and cut some thin stock running the thing on a Porter Cable pancake compressor.

    That poor lil compressor was gonna have a heart attack if I didnt stop though!


    So far I have not had to call Miller for a problem, but I have called them plenty before buying any welder and I have to say they wer FANTASTIC with me and my ignorance. They have me as a customer for a long long time.

    When we decided to buy a plasma cutter we didn't even consider any other brands. That MM210 won over our hearts big time!!!!!
    Again, I appreciate everyone's input and suggestions here. I did in fact take Scott up on his offer and called him. I will be taking the machine to a local service center this weekend, and hope that they can fire it up and see if they get the same results. In my phone call with Scott, he again mentioned (as many have) that the machine will actually work fine with under powered cfm (pancake compressor) for shorter cuts. He told me that it sounds like there is more of a problem than air.

    As another check last night, I put a multimeter on my 240 drop in my garage since I just had it installed. It checked out to the proper voltage. I also put the meter on the pigtail I made, and that also checked out with the proper voltage. All in all, I checked voltage on each hot for 120, both together for 240, and continuity across the pigtail ground. So at this point, I can rule out an electric problem.

    Bottom line, Scott said he is leaning towards this being something more than an air issue, and if in fact it is, he said he would get me a new machine since mine is 1 week old.

    Leave a comment:


  • harcosparky
    replied
    Originally posted by Fishy Jim View Post
    You can get 150psi out of a bicycle hand pump, but you'd never feed a plasma with it.
    I bet yer arms fall off trying!

    There has to be an easy answer, hopefull vtwin4life will make the phone call as suggested above.

    But I was a bit surprised that I was able to fire off the 375 and cut some thin stock running the thing on a Porter Cable pancake compressor.

    That poor lil compressor was gonna have a heart attack if I didnt stop though!


    So far I have not had to call Miller for a problem, but I have called them plenty before buying any welder and I have to say they wer FANTASTIC with me and my ignorance. They have me as a customer for a long long time.

    When we decided to buy a plasma cutter we didn't even consider any other brands. That MM210 won over our hearts big time!!!!!
    Last edited by harcosparky; 11-14-2006, 01:00 PM.

    Leave a comment:


  • Fishy Jim
    replied
    What I've found is that if you don't have a good ground, and/or you move too slow is when you get the heavy dross or lack of cutting. I've learned my lesson that the pilot arc is only good for really thin stuff without a completed circuit.

    When you move too slow, you end up melting the edges of the cut rather than making the cut and moving forward with it. I can look at everything I've done so far and see where I was moving too slow or the right speed.

    Air hoses can also collapse internally and create blockages. I'd be checking any quick connect fittings and see if you can pass a strong blast through the hose without the machine attached to it. As has been mentioned, pressure and flow are entirely different. You can get 150psi out of a bicycle hand pump, but you'd never feed a plasma with it.

    Leave a comment:


  • Scotth
    replied
    Vtwin4life, give me a call at 920-831-4854 and I will get this straightened out for you.

    Leave a comment:


  • harcosparky
    replied
    Originally posted by vtwin4life View Post
    Well, I have learned a valuable lesson here. I bought this from a shop in indiana that sells on ebay (no auctions, just brand new). I called this morning basically asking advice of what to do, and his response was "well I haven't had any problems with them and I've sold a lot of them, so take it to a service center". So, he has basically washed his hands of it. I called a couple service centers and they ask "did you buy it here or online?". When I answered them, the whole tone of the conversation changed. "Well that's what you get when you order online" is the answer I got there. They told me that they will most likely be way too busy on a saturday to look at the machine. I work 14 hours a day monday through friday, which excludes me from going to any LWS. So I figured I would save a few hundred by ordering online.

    Lesson learned. I should've spent that $1200 on beer, I'd be in a lot better mood right now.

    Call Miller and tell them all that has transpired. All that you have done and most importantly what the LWS's have said and tell the who the dealers are with that attitude.

    I know who ya bought from - thanks for giving me thier response as well.

    Never bought from IOC and never will.

    Leave a comment:


  • vtwin4life
    replied
    Well, I have learned a valuable lesson here. I bought this from a shop in indiana that sells on ebay (no auctions, just brand new). I called this morning basically asking advice of what to do, and his response was "well I haven't had any problems with them and I've sold a lot of them, so take it to a service center". So, he has basically washed his hands of it. I called a couple service centers and they ask "did you buy it here or online?". When I answered them, the whole tone of the conversation changed. "Well that's what you get when you order online" is the answer I got there. They told me that they will most likely be way too busy on a saturday to look at the machine. I work 14 hours a day monday through friday, which excludes me from going to any LWS. So I figured I would save a few hundred by ordering online.

    Lesson learned. I should've spent that $1200 on beer, I'd be in a lot better mood right now.

    Leave a comment:


  • harcosparky
    replied
    Well don't question the quality based on one unit. It could well have been damged internally during shipping. Hard to say.

    I own a 375 and even though new with it am very happy. Watched the Miller rep use a 375 and was amazed at how good it was in experienced hands.

    I would take the unit back to the LWS and have them try it.

    I've exhausted my limited knowledge at this point.

    KEEP IN MIND - I did all my testing with the torch up off the workpiece freehand and did not do any dragging.

    Leave a comment:


  • vtwin4life
    replied
    Originally posted by harcosparky View Post
    The arc coming out at an angle ???

    OK, forget about cutting any metal for the moment.

    What happens when you just hold the torch in the air and fire it???

    I tried that with mine and got a nice well defined flame coming straight out of the torch.

    I even went so far as to adjust the air pressure from high to so low it shut down and still the flame from the torch was straight. ( keep in mind I am adjusting pressure at the 375 and in no way cut down on the CFM )

    In a bit I will test with a LOW CFM compressor and see what happens
    In the air, the flame comes out perfectly straight. It's when I make a cut, it comes out on an angle oppisite of my cut direction. It's like the unit is under-powered and struggling to cut through the 1/8". It really has a tough time penetrating the steal when cutting. That's why I'm beginning to think there are more problems than just air. No matter how slow I go, and how much amperage I throw at it, it's like I'm pushing it to it's limits and getting a horrible sever cut.

    Between this and the "Genuine Miller" drag parts that don't give any standoff what-so-ever unless you unscrew the drag shield (Miller tech duplicated this), I'm really questioning the quality.

    Leave a comment:


  • harcosparky
    replied
    OK I just ran a test with a 2.6 CFM @ 90 PSI compressor.

    Porter Cable Pancake Compressor

    Even with the low flow I was able to fire off the torch and make a short cut.

    I did notice some degradation with this configuration.

    Try firing the torch into the air and see what the flame looks like.

    At this point even with the low air flow, if you do not see a well defined flame coming straight out, take the unit to the LWS and have them check it out.

    The arc coming out at an angle tells me maybe something at the torch end is misaligned, but this is truly a SWAG ( Scientific Wild As*ed Guess )

    When you tried the new tip, did you try the standard tip or the drag tip ???

    Leave a comment:


  • harcosparky
    replied
    Originally posted by vtwin4life View Post
    What I keep noticing is the arc is having a really tough time coming out the bottom. It ends up coming out on a severe angle even when moving the torch really slow and using 24-27 amp output on 1/8" stock. My 25 gallon compressor is rated at 3.5 cfm @ 90 psi, but I was told that would just mean that I wouldn't be able to make long cuts which I'm fine with. Maybe, I was told wrong, and this means that less than 4.5 cfm @ 90 psi means horrible cuts. There is a 26 gallon compressor at home depot now that is rated 5.5 cfm @ 90psi. I may either just buy it, or try to rent one like it. Something tells me that this isn't going to make any difference though.
    The arc coming out at an angle ???

    OK, forget about cutting any metal for the moment.

    What happens when you just hold the torch in the air and fire it???

    I tried that with mine and got a nice well defined flame coming straight out of the torch.

    I even went so far as to adjust the air pressure from high to so low it shut down and still the flame from the torch was straight. ( keep in mind I am adjusting pressure at the 375 and in no way cut down on the CFM )

    In a bit I will test with a LOW CFM compressor and see what happens

    Leave a comment:


  • vtwin4life
    replied
    Originally posted by harcosparky View Post
    That's kinda why I suggested using a new tip as well as larger air supply.

    A 3/8" airling would be sufficient IF IF the air compressor could push the proper volume ( CFM ) of air.

    I was 'developing' a problem with mine even though I knew the air pressure and flow was correct, and the air was dry. I knew it had worked initially and something was changing, so I looked to the tip.

    ALSO in this case as I recall -

    vtwin4life -

    'ordered' a Drag tip/cup for his machine.

    Maybe he should try using the standard tip / cup setup as well.

    A NEW TIP is something he could try easily enough as the 375 came with 3 extras.
    Yeah, I tried new tip/cup/electrode last night. Same issues. My air line is 3/8". What I keep noticing is the arc is having a really tough time coming out the bottom. It ends up coming out on a severe angle even when moving the torch really slow and using 24-27 amp output on 1/8" stock. My 25 gallon compressor is rated at 3.5 cfm @ 90 psi, but I was told that would just mean that I wouldn't be able to make long cuts which I'm fine with. Maybe, I was told wrong, and this means that less than 4.5 cfm @ 90 psi means horrible cuts. There is a 26 gallon compressor at home depot now that is rated 5.5 cfm @ 90psi. I may either just buy it, or try to rent one like it. Something tells me that this isn't going to make any difference though.

    Leave a comment:

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