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How To Build A Welding Table - Uncle Freddy's Fab FarmA Fabulous Story About Fabbing A Fabulous Fab Table From the July, 2008 issue of 4Wheel & Off-Road By Fred Williams Photography by Fred Williams
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The 4x4 Scene Has Always had guys looking to modify their trucks, but in the past 10 years home fab shops have doubled. Every other wheeler I know is learning to fabricate, weld, and build their rigs into something unique. The 4x4 off-road buggies are huge these days and they aren't assembled by just bolting on a suspension and bigger tires the way 4x4s used to be built. Luckily the market has been supporting those who build their own stuff, and I figured a recurring department showing tricks, projects, and tools for fabrication would be helpful for anyone looking to become the next fabricator extraordinaire. I'm not a professional welder, but I have been welding since I installed that first rebar rollcage on my Tonka truck back on the farm with a buzzing stick welder. Over the years I have laid countless yards of beads on everything from rusty Toyotas to custom Jeep frames (yes, I have a trick buggy project I'm building, but I leave those welds up to the professionals), and now I have become proficient at what I call gorilla welds: big, strong, and ugly. Luckily I have visited a fair number of shops, and I try to pick up any tricks for making stuff. One of the most important things to have in your shop is a good surface to work on. There are many great welding tables for sale, and searching auctions and classifieds can reward you with an awesome used work bench, but building one is an excellent first project. It's relatively easy, doesn't require any specialized tools other than a welder and chop saw, and it will be something you can pass on to your kids some day. More importantly this project is not life threatening like building a cage or custom suspension, so it is a great venture for a rookie welder. The first step in building your fab table is coming up with a plan, and this requires asking yourself how much table do you want, need, and have room for. I wanted something big so I could put heavy truck parts on it, I have enough space in the shop for a 4x8-foot table, and I wanted the top to be the same height as my old used table at roughly 37 inches to the floor. Here is a rough drawing of what I envisioned, and though it turned out great, it definitely wasn't cheap. The 4x8 sheet of 1/2-inch plate I used as the top cost me around $400 and when you add in the three 20-foot pieces of 2x2-inch square tube, the small caster plates, the casters, the perforated metal, and the hardware to hold it all together, I'm in the hole around $700. Remember to ask your steel yard if they have any remnants or drops before you buy. You may end up changing your design if you can get a smaller or longer plate for less money, but I wouldn't go under 1/4 inch thick for the top.  I have learned to always cut...  I have learned to always cut the big pieces first, so that if you mess up you can then cut the smaller pieces from the longer sections. I used two 84-inchers for the upper long spans, two 80s for the lower long spans, seven 32s for the short spans, and four 28s for the legs. Be cautious where your chop saw sends the sparks-don't burn down your garage by accident.  Measuring before you cut is...  Measuring before you cut is important to end up with an even table. I use a tape measure, a square, and a Sharpie to mark the tube. Be sure the end of the tube doesn't have any burrs that will cause you to mismeasure. Measure twice, cut once. With the steel in the chop saw and the cut-off wheel square to the metal, I remeasured to make sure I wasn't cutting the piece too short. Steel isn't cheap so take your time.  When you cut the steel you're...  When you cut the steel you're bound to get some burrs, so use a grinder and clean these off so that you get a good tight alignment when assembling the framework. My pal Frank the Tank is an engineer so he drove his train by the shop to give me a hand building the table and also helped clean out the fridge. Finally I could begin welding. First we put together the top section and built the table upside down from there. My shop floor is pretty flat so this isn't a problem, but careful measurement is important. To assemble the legs and lower long spans we used multiple squares and always tack-welded everything first. Then we measured again, added more pieces, and tack-welded them again. No final welding is done until the whole assembly is tacked and assured to be square. If you measure diagonally across a square or rectangle and you get the exact same length from opposite corners then you have a perfectly square frame. I found the frame work to be within an eighth of an inch diagonally, good enough for a table that will get beaten on over the next 50 years, so I proceeded to burn in the weld joints. However, to keep the welds from pulling the frame out of whack, I jumped around, doing a little on each junction at a time until every seam was welded.  In order to attach the 61/2-inch...  In order to attach the 61/2-inch casters I added these mounting plates. Some steel yards have them precut and drilled; otherwise you'll need to make your own. I also added a piece of perforated 16-gauge steel to one half of the lower deck as a place to store stuff. Using perforated metal makes it easier to clean with an air hose, and you can put any used part like a transmission on it and let it drain into a pan below.  When you cut the steel you're...  When you cut the steel you're bound to get some burrs, so use a grinder and clean these off so that you get a good tight alignment when assembling the framework. My pal Frank the Tank is an engineer so he drove his train by the shop to give me a hand building the table and also helped clean out the fridge. Finally I could begin welding. First we put together the top section and built the table upside down from there. My shop floor is pretty flat so this isn't a problem, but careful measurement is important.  Finally on top I added this...  Finally on top I added this Wilton vise. These are top-of-the-line vises and priced accordingly, but if you watch the classifieds you can find them used. I searched for six months before I found this one for $100 and jumped on it. I mounted it so the jaws hang over the edge of the table top to accommodate large clamped items, and so that the vise mounting bolts also hold the table top to the lower framework. The table top hangs over the frame by 6 inches on every side to make clamping that much easier.
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