tig welders

[thwang]

hi all
im thinking of buying a small tig welder for a project i,ve wanted to do for a few years now to build my own mountain bike frame i could do it at work but with mitering the tubes trial fitting it would take to long and proably get in the way of things so i,ve been looking at a couple on ebay price wise is an issue £200 max what do think of these
http://cgi.ebay.co.uk/NEW-Dc-Inverter-Tig-240-volt-welder-with-accessories_W0QQitemZ190435897416QQcategoryZ113743 QQcmdZViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo %3DDLSL%252BSIC%26its%3DI%26itu%3DUCI%252BIA%252BU A%252BIEW%252BFICS%252BUFI%26otn%3D8%26pmod%3D1904 24345489%252B190424345489%26po%3D%26ps%3D63%26clki d%3D6065654414697496834

or
http://cgi.ebay.co.uk/TIG-WELDER-MMA-WELDER-200-INVERTOR-AMP-200M-PULSE_W0QQitemZ170533023647QQcategoryZ113743QQcmdZ ViewItemQQ_trksidZp4340.m263QQ_trkparmsZalgo%3DDLS L%252BSIC%26its%3DI%26itu%3DUCI%252BIA%252BUA%252B IEW%252BFICS%252BUFI%26otn%3D8%26pmod%3D1705174562 70%252B170517456270%26po%3D%26ps%3D63%26clkid%3D60 65563625735069598

the max tube thickness would be 1.2mm down to 0.9mm
simon

[flyerncle]

SIP are doing some great deals on new welders.

I bought one of these.....http://www.hisltd.co.uk/images/GreenT177-large.jpg

[davidimurray]

I've got one of those welders in your first ebay link. Bought it for £120 a few years ago as a bit of a risk. It has been brilliant - I've welded my whole chassis by TIG and uprights , diff mounts etc (i.e. thicker bits) with the arc function because I'm tight and didn't want to buy more gas (and I love arc welding!)

I welded my sump with it. When it comes to thin material it can be quite tricky to use as you find you have to set the current quite low to start with and take a long time to make the initial weld pool before moving on to the seam. Alternative is set current higher and go like the wind. If I was to weld more thin material, I would get a TIG welder with a pedal to give you more control.

[thwang]

hi which one did you buy link 1 or 2

[davidimurray]

The one in link 1, although a 200A version and wasn't branded like that one.

[Davey]

Don't forget if you want to do ali work you'll need an AC/DC unit. I just ought a 200Amp AC/DC unit off Ebay and I'm well chuffed with it so far.

D.