If it was me I would teach arc reason low cost set up for both school and them if they wish to take it further. With mig wire and tig consumables you wont be long eating into that 800 and will need gas to. You would get two reasonable arc welders for 800 but remember you are going to need rods...
Hello, are you allowed to grind the steel if so grind the top piece so it is angled/bevelled slightly this will help with the toe. Take your time and well pool will fill out and help consistency. I take this is a horizontal weld you are doing.
Hard to say from photos but bottom photo also looks like you have went to fast while welding. Try and slow it down, keep the amps high and see what the penetration is like on some scrap 6mm.
If it is good enough it my be your position while welding the axle.
:o Will depend on welder good tutorial here for Mig. Did you not cut and acid test your welding for level 2? If so you will have an idea about penetration, set your welder to the amps you think and then adjust your wire speed to suit. Hope that makes sence: whistle:
Oh and :waving:
Cheaper was a bad word to use... I mean if you find after replacing ballast at say £10 - £15 battery is gone for emergency light you are into more money again and the hassle of trying to match items up. Complete unit will be around £50 depending on what you go for.
Cheaper and better value just to replace, although you can buy ballast. Not sure what you mean by back up bulb must be emergency light with built in battery. Just make sure to buy one with this in and wire directly.
Should also have said if you grind or use plasma cutter you are going to have lots of sparks etc which will destroy surround paint. This will be minimal with jigsaw.
What is your budget?
You will probably have to rent gas from boc budget £100+. I know my rental is £98 but you will have to buy a fill to.
I had a Clarke and then upgrade to a portamig great welder but £500+.
It all really depends how much you are going to be welding and at what thickness.
If you are concerned about radiators you would be better to put in and inhibitor - antifreeze because if you drain them all of the time it will not only rust the inside of the radiators but you may also find you end up with alot of air locks. This should protect them from freezing down to about...