harbor frieght corner clamp opinions?

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I'm new to welding and I was wondering what people thought of these?http://www.harborfreight.com/heavy-d...lamp-7519.html
Reply:Look good, can't go wrong at the price.  May take a little tuneing.
Reply:i have one great for 12 bucks
Reply:By the time you clamp the material you can have it tacked with a simple Speed Square.Spend the money on C-ClampsEd Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:I have a set that's similar and quite like them. $12 is cheap enough to give them a try. And with those little pin handles, you won't be over tightening and cracking the body200amp Air Liquide MIG, Hypertherm Plasma, Harris torches, Optrel helmet, Makita angle grinders, Pre-China Delta chop saw and belt sander, Miller leathers, shop made jigs etc, North- welders backpack.
Reply:Originally Posted by Broccoli1By the time you clamp the material you can have it tacked with a simple Speed Square.Spend the money on C-Clamps
Reply:My sister got me one a little while back and while it did come of use before I had a welding table (after a lot of shimming) now that I have a solid place to clamp it to I'd rather just use a couple C-clamps and framing square or speed square as mentioned.  I like to use the clamps to snug down the pieces by eye to my welding table then I use a mallet and a square to get things set up and then tighten the clamps all the way before I do my tack weld.  Much quicker and more accurate and at HF you can get a bunch of C-clamps and a mallet for the same price Also no matter how square you have everything set up if you muck up terribly on the welding part with the heat then it will be a parallelogram when you finish.  It's one of those guessing games that experience helps with.  Knowing which way the metal will move after you put a bead on it.You'll find a lot of information on this site about jigging things up and very few of them if any use anything special.  Of course the retailers would like to sell you all sorts of things starting with corner clamps and ending with surface plates with special attachments to put together just about anything at any angle.  But it seems that with a lot of practical experience and a little thinking things through you can get a surprising level of accuracy with some angle iron scrap and C-clamps.