mikeb
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| posted on 15/4/13 at 02:14 PM |
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Welder Problem
I have a Boc Migmate 130, think its the pretty standard hobby mig with the min max 1 and 2 setting and wire feed dial.
It use to be a good welder producing nice welds but its slowly started playing up. I'd finished my chassis so only used it for the odd small
job.
I thought it was a earth issue so put a new earth clamp and wire on it.
It no longer produces the nice frying bacon noise, if I can get a weld out of it at all, it seems to be creating a weld pool from the feed wire but
not penertrating enough often ending up with a lump stuck to the tip. Most of the time now it pops and spits back at me, every now and again
I'll get a good weld for 15 seconds but only on a good day!
the wire feed seems good, well its fine when I'm not actually welding.
I'm still wondering if its a powersupply/earth issue.
I've put new tips on (haven't changed the shroud) I did check inside for any loose connections etc. Can you get a live shround
Any thoughts,
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r1_pete
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| posted on 15/4/13 at 02:21 PM |
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Have you checked the wire liner, the standard nylon ones do degrade over time and cause the welding wire to drag.
Replacing it with a steel liner, often transforms the machine, and not expensive..
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mikeb
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| posted on 15/4/13 at 03:23 PM |
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the wire feed seems good and smooth
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Slimy38
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| posted on 15/4/13 at 04:13 PM |
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This might seem a little off topic, but I took a look at steel liners after reading this, and a cost effective option seems to be curtain wire. Did I
miss something in the translation, or is curtain wire a viable solution?
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r1_pete
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| posted on 15/4/13 at 04:35 PM |
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quote:
Originally posted by Slimy38
This might seem a little off topic, but I took a look at steel liners after reading this, and a cost effective option seems to be curtain wire. Did I
miss something in the translation, or is curtain wire a viable solution?
Yes I have read that too, never tried it, doubt I would to save a few ££, Id go with the purpose made thing.
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theprisioner
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| posted on 15/4/13 at 06:23 PM |
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Is it a gas or gas-less system you are using cos it sound like a gas problem to me. If I turn my gas off I get exactly the symptoms you describe.
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Staple balls
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| posted on 15/4/13 at 07:21 PM |
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I'm sure curtain wire would work, or bike brake outer, but saying that, I got a 3m liner off ebay for a couple of quid, took a little fettling
to make it fit my machine, but utterly transformed it for next to no money.
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LoMoss
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| posted on 15/4/13 at 08:44 PM |
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Have you changed the tip. They fug up with dirt from the wire and welding?
HTH
Moss
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