No Gas conversion for MIG.

No Gas conversion for MIG.

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OldSkoolRS

Original Poster:

6,774 posts

181 months

Saturday 28th April 2012
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I've just recommisioned my old Cebora MIG rig, but I don't have access to the large type gas bottle I used to use. I've gone over to the disposable bottles, but only managed a small repair before the bottle ran out. I hadn't realised just how quickly they would be used up. frown I wondered if it is possible to just swop the welding wire for the type with a flux core? Are there any mods I need to do for this (I seem to recall that the polarity has to be changed)?

Here is the welder:



This is the section I welded on a single bottle (plus some practice welding on scrap as I haven' welded for about 15 years), the 3 sides of this plate and various plug welds to replace the original spot welds:


OldSkoolRS

Original Poster:

6,774 posts

181 months

Saturday 28th April 2012
quotequote all
Thanks for the feedback. I may well have had it turned up too high. The bottles are just from Halfords as they were convienient and dearer in the BOC shop I looked at. I did check for leaks and it seemed fine. At this rate I'll probably get through the other two bottles I have putting the wing & wing rail and strut strengthener plate back on. Then I need to repeat for the other side, so another three bottles. I guess £50 or so for them isn't so bad considering what I would pay to have someone else do it, so not the end of the world as I hope not to need it after this job hence why I went down the disposable bottle route.

Another question: What do you do with the empty bottles? Can't just put them in the bin, but not sure what they would make of them at the dump...

OldSkoolRS

Original Poster:

6,774 posts

181 months

Sunday 29th April 2012
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Thanks Mike. Might have a little weld today as I received my new auto darkening mask yesterday. smile I'll try lowering the pressure on the regulator to see if I can get more time out of it on bottle number two. Probably worth spending 5 minutes on some scrap metal to see how low I can set it before the gas doesn't do it's job.

OldSkoolRS

Original Poster:

6,774 posts

181 months

Sunday 29th April 2012
quotequote all
The new mask is great, can see where I'm welding much easier than before. I must have had the pressure set a bit too high on the first bottle as I found I could set it much lower (the needle barely comes off the zero when in use) and it still protects the weld. Hopefully the second bottle will last longer than the first.

However, I managed to injure myself today with the angle grinder using a wire brush attachment: It caught on an edge and it was thrown back at my face, catching my mouth and surrounding area. Gave the Mrs a fright when I went back into the house I can say...typically I would have been wearing a face mask which would have protected me (I had goggles and ear defenders on) but didn't as this was the last quick clean up before welding. Really fed up as I've blackened the odd fingernail and got plenty of cuts and bruises over the years of DIY, but this is quite nasty. frown

Guess the RS might be left alone for a few days until this heals up a bit...

OldSkoolRS

Original Poster:

6,774 posts

181 months

Monday 30th April 2012
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Cheers for the comments...spent today watching daytime TV (and Top Gear repeats, plus various 'Beetle Crisis' episodes on Quest channel smile ) and browsing the web feeling sorry for myself. I can't go to work as it's blooming sore, plus it just isn't a good look to visit customers with especially as I can't shave at the moment. Shame as the car is coming along quite well and I was just ready to tack the new wing rail in place...

OldSkoolRS

Original Poster:

6,774 posts

181 months

Tuesday 15th May 2012
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Much better thanks...any scar is currently hidden under a rather scruffy beard (with far too many grey whiskers for my liking!). Hope to get back on with the RS soon now I've got a full face/brow mask.

EDIT: You haven't got a relative called Dave have you? My parents had a friend called Dave Hutchinson that use to look after the RS when they owned it, they live not too far from you. smile

Edited by OldSkoolRS on Tuesday 15th May 17:56