What do you call this type of corner clamp?

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If I use 90° corner clamps to weld together four pieces of square tube into the shape of a table top, but then I want to weld the table legs onto the corners, what is the name of the type of clamp that would help me do that?
Reply:3 axis clamps. Here is a pic of a strong hand tools model.Check the capacity versus size of material you are using.

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Millermatic 252 MIGMiller Dynasty 200DX TIGMiller Spectrum 625 PlasmaAltas 12x36 Metal LatheBridgeport Milling Machinewww.psacustomcreations.com
Reply:3-axis angle welding clamp.  Very $$$,Make your own:  "USMCPOP" First-born son: KIA  Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:Don't lose sight of the fact that, just because they're clamped "square", that they are going to remain square after welded (distortion has to be planned for when welding

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Reply:Is tacking a corner, squaring 1 side and then squaring the other side that difficult? Clamps are nice but sometimes it's pretty easy to do the job without needing one. If you did it right your angle clamp could have been used for the leg and the table frame. Welding magnets come in handy too but the fancy ones are also pretty pricey. The basic little ones are good for small pieces.Last edited by Welder Dave; 3 Days Ago at 01:44 PM.
Reply:A trick I use is to lean the upright piece just a little bit & tack in the center. The set your square (or 2 squares or levels) to get it right both ways & tack it up. You still need to use weld sequence to mitigate distortion. The 1st tack steadies the piece so you can adjust it, plus the small gap lets you get full pen.
Reply:It's a good idea once all 4 legs are tacked on to tack some temporary diagonal bracing to hold the legs straight before welding them fully. Depending on how tall the table is you could put lower bracing in to hold the legs straight too. Then you could add a lower shelf if you wanted.
Reply:Looks great.I would never use it until loss the clamp.Dave

Originally Posted by psacustomcreations

3 axis clamps. Here is a pic of a strong hand tools model.Check the capacity versus size of material you are using.

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Reply:I watched the video. That guy is talented but, I guess if I ever want one I'll just have to get a second job and buy it.
Reply:I spose its ok but aint on my short list.www.urkafarms.com
Reply:Meh. Stuff gets so warped/distorted from welding anyway, that it seems you're always having to beat it out back straight/square/level/plumb -- whether or not you have some fancy schmancy $$$$$ clamp. As others said, seems like you can get just as good results by tacking in lots of braces, etc., then welding it out. I often tack stuff to the welding table temporarily.
Reply:90% of the joints a guy does a little welding warp doesnt matter. After a while looking to make sure its straight becomes a reflex. Very rare do I got to fix something today.  There is a lot in thios biz like that,,, when I first started I was alsways grinding in a corner, removing a tack, straight, cut it apart, using cut disks.  I can go weeks without a zip disk. I learned to design simpler and neater with fewer properly sized pieces.   I saw a hitch designed by a forum guy,,, nother forum but went in to great length about all the gussets and brackets and such, all the welding.  He is a great company owner, has a fine job shop and men and is a smart guy but he is still in a stage learning design,,, I see the same from another old timer a but was proud of and should have been,,, 4 pieces and 4 bolts and 3 or 4 6010 rods and it was a thing of beauty, traded a minor upsize in a material didnt need 3 or 4 additional gussets, wasnt his first time and instead of days was done during a case of beer, 2 hrs, was absolutely perfect as you could just see this wasnt the first time he done this and while shop owner type wsas polishing and finishing and fitting, yes it was beautiful craft work which in the eye of the beholder may have distracted from its function first glance for sure.    The guy that had it done showed it to me to get opinion and he knew what the answer should be cause he knew it was right.  I had the same opinion, Cliff said it was a bud of his did it at his shop while they drank and he was so impressed tossed in 2 more cases as a tip.  I had to agree,,, Reese wanted a couple hun then there is install and he got it better for price of the part.www.urkafarms.com
Reply:My point I guess was,,, its nice but when you start its easy to get carried away with all the stuff in mind you are going to build etc, wait a bit before buying every shiney thing.  The Fireball type clamps are nice, they are ok but made it this far without them and not likely to get any unless willed to me. Noithing wrong with them but itys like the jig table and all that hardware, dont even want it anymore, be more crap in the way for something I already have a way to do and am not building sophisticated assemblies daily, last splice we did with 3 clamps and a square and came out straighter than the stock tube and didnt distort any in welding due to the fit up and design.www.urkafarms.com
Reply:I know this isnt direct to the question but this is common and all related and really to the newer guys.  This is one of my most valuable assets.  I have a few pieces I save out, a couple I make when I need it but so much is so easy when you aint got to cut and drill every piece to clamp up.  The other day I found a section of leaf with a hole in it, was the perfect piece to bolt/clamp a damaged section out and nothing they make anywhere for any money would have been easier faster and certainly not cheaper and not at hand.

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Last edited by Sberry; 2 Days Ago at 12:25 PM.www.urkafarms.com