This instrucable is about building a table and attaching a hand-held circular saw to the table. The table stands on saw horses, so it's more of a surface than a free-standing table. The table includes a removable panel where the saw attaches, so the table can be used with other tools---a router for example.
Please be careful if you attempt this project at home. There are power tools involved, which should inspire extra caution. Real table saws cause their share of injuries, so just imagine what could happen with this ad hoc arrangement.
Step 1: Make the table
Find some reasonably-flat lumber and make a table. You can make legs for it, if you want, but I just put mine on saw horses.
You'll probably want to add some cross pieces. Be careful that all screws are counter sunk or counter bored. I used pine and 2-1/2" coarse-thread dry wall screws, which countersunk themselves. I used a pilot hole to prevent the plank from cracking.
Remember that you want to hang a large saw under the table when you're choosing where to put the cross pieces. Make sure there's enough room to mount and adjust the saw.