Going to be embarking on a welding cart build in the not too distant future.  Grabbed a free 2 drawer filing cabinet off of the book of faces marketplace to use as the "base cabinet" for the machine because I'm super cheap.  Thinking I'll weld up a frame out of angle for it to sit on, put the tank on the back with some 1.25" filler rod holders.  May throw a boom on there to hold the torch hoses up off the floor.  Top drawer will be for all of my PPE, references, notebooks/clipboard, marking tools.  Bottom drawer will have my foot pedal, torch, ground clamp, torch consumables, grinders and wrench, discs (separate sealed container for the ones dedicated for AL), Tungsten grinder and discs.

Will also be building/repurposing my DeWalt jobsite saw stand I think to be the base to a mobile welding table.  Was going to get rid of it, but now I'm thinking I'll repurpose it since it's "free" steel.  I want to buy the titanium "fab" table from HF since it's cheap and I can pop it on top of my track saw cart/assembly table.  

Do you ever use more than one type of gas? If so you might want to consider making it so it holds 2 bottles.

Here's mine.  A bit unorthodox, but I needed something I could move around.  It's set up like a wheel barrow with sturdy front legs and wheels.  Handles fold up so you can move it around.  Top is 1/8" thick steel, but I wish I'd gone heavier.  A rear wall protects the tanks from splatter.  

Table has .5" thick 6061 T-6 aluminum top that was scrap from a laser system.

Cart is made from scrap metal.  Miller 180 on top, Older model Miller Spectrum 875 on the bottom.  



I do a lot of auto sheet metal and frame fabrication, so I need the small footprint cart with maneuverability.  (the wheels were also salvage)

No current plans to use anything other than pure argon.  Figure I will size it for two tanks just to be safe.

Here is a couple of mine and one i just built for a member here
I used a old fab cart that i didn't need or use anymore .




the table i built from a cart :



the harbour freight cart I used for my tig welder

Most of my work is on small items, so I get by with a 24”x48” top.  It is a 1/2” sheet attached to a Harbor Freight lift table.

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You can see the tig cart I made.  The Dynasty came with a two wheel dolly cart and I hated it. Pain in the ass to move especially with a large bottle.

My mig welder came with wheels and a bottle mount.  I added a small platform for the plasma cutter and I store a bunch of clamps on it.

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Cart and Table Attached File
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Nice!

Not mine, but a nice concept
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My TIG cart is very similar. It's the one drawer HF cart. I have the TIG welder on top, and the plasma cutter on the bottom.

I REALLY like this idea for my welding table...gonna mull this over a bit. The legs that came with my titanium table are quite flimsy.