wanderlust
Well-known member
Have thought about getting a cheap welder and having a practice so i can do my sills. Have seen some no gas mig welders for around £100 anyone used these?
I bought my clarke 135A off of weldequip, cheaper than MachineMart (including the postage) after playing around with a cheap mig (Wolf) and the difference is amazing. Thought about gasless but to be honest its not worth it.Johnny said:all good advice, you could look here for a secondhand one,
http://www.mig-welding.co.uk" onclick="window.open(this.href);return false;
great site for all things welding.
i bought a Portamig 185amp from 'weldequip' who now has an online shop. hes a good bloke and will answer all your questions and his advice is spot on. it wasnt a cheap welder but it does a brilliant job even with my **** skills. My advice is make sure you get a Mig that can go down to 30 amps or less anything above 40 amps will invariably blow holes in your sheet metal especially if you are a novice. Duty cycle is important too, cheap MIGs with a low duty cycle will have you stopping after a few mins continious welding and waiting till the unit cools down (can take 30 mins).
i spent £100 on a course, tbh it was a waste of money, you will learn more by reading (check out that forum) then get yourself some scrap metal and play around.
There's a thread about cheapgas as well im not sure if the deal is still running, it was linked from VZI i got two mid sizes bottles of argoshield from BOC for £35 and the rent was greatly reduced.
froggy said:The only thing about a college course is they dont teach you how to weld when lying down, upside down, bent around chassis legs, reaching into wheel wells, underneath the battery trays etc etc (you get the idea :lol: )
Johnny said:froggy said:The only thing about a college course is they dont teach you how to weld when lying down, upside down, bent around chassis legs, reaching into wheel wells, underneath the battery trays etc etc (you get the idea :lol: )
very true, i spent each weak welding thicker and thicker bits of metal which got really boring, i was basically left too it. As i had the gas and welder at home i just asked if i could take some of the waste to practice on. i emptied a complete bin full of decent sized cuts and different thicknesses, the dude didn't care so i have enough metal to build half a bus now lol. well i did think i might as well get my moneys worth...
young_dubya said:Ive not had courses a few mates of mine did them and it helped abit but not as much as hoped. practice is the key. I think the courses are a good idea but they are aimed at welders. The see it as if you can weld thin stuff you can weld thick stuff. I started on thin sheet for the VW's and then went on to thick. the thick stuff gives you the ability to practice technuique which makes welding the thin stuff easier so IMHO, starting again id start there :lol:
Practice runs both consistant (i loop from top to bottom imagine joining "O's" with straight lines at the top ) I very rarely use this as it causes alot of heat in one spot and thats when things warp. Its good for things like chassis members and out riggers etc where the metal has enough thickness to prevent the warping. Still though a run of about 1" is a maximum anywhere on a car for me. (Unless its things like main chassis members which need a good strong weld)
Then practice doing the same with tack type welds (do one spot weld for a second or so then pull off allowing it to cool, just before the orange glow disapears do another one overlaping it (like audi badges)) I use this for runs on the thinner stuff but a 1cm or so run is maximum for me.
Then theres the welding by numbers. I use this on things like body work where a warped panel can be easily achieved with a tad to much heat. Getting the welder set right is imperative for good penatration and quick spots. You dont want to be welding things twice if you can help it. Start by tacking the panel in 1" gaps all the way along working from one end to the other to avoid stresses building up along the length. Then work from each tack to its left or right then move about the panel to stop heat building up. Most welding sights will show you profiles of welds and whats perfect and what to adjust to get the set up perfect. Alwasy practice before starting on your car as being rusty ruins panels. Welding upside down Wire speed up a touch.
The main trouble i have is grinding afterwards i always tend to take too much off :lol: :lol:
Slowly slowly catchy monkey.
Ps. CLEAN EVERWHERE!! Bright shiny metal (both sides!!) Will stop you blowing holes!! V important!
As you were.
Johnny said:the course i did was 'an introduction to welding', 10 week beginner/hobbyist course that led on to an NVQ, run by the local education authority. it wasnt much help.
ProfessorWheeto said:Johnny said:the course i did was 'an introduction to welding', 10 week beginner/hobbyist course that led on to an NVQ, run by the local education authority. it wasnt much help.
Oh, was it just a MIG course then?
Johnny said:ProfessorWheeto said:Johnny said:the course i did was 'an introduction to welding', 10 week beginner/hobbyist course that led on to an NVQ, run by the local education authority. it wasnt much help.
Oh, was it just a MIG course then?
nope it was all kinds of welding brazing gas, MMA, TIG MIG etc. you could chose what you wanted to do and were left to it.
Frankie said:can you use flux core wire with a gas welder and if so to what effect cheers Frankie.
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