Mine is version four or five, all homemade, with a total cost of probably around $2.50. It's mounted on the second of a bench, so I can sit using it (bad back). Top is 1/2" plywood, supported by a spider web of 2X4 pieces. It's all scrap, except for the $2.50 or so invested in bolts to hold it in place, and glue holding it all together. This is the first version with an insert plate. Don't know the top size, but probably around 18" or so wide, by about the same. The insert plate is 1/2" plywood too. If I need a fence, there's clamps and 2X4.
Originally, I had planned on buying one. Then realized they couldn't do anything different than one I could make. So, I made one, immediately made a better one, then later made a larger one, and so on. I believe I can find a photo of it.
"It ain't what you're told, it's what you know." - Granny Weatherwax
Fawkahwe tribal police SWAT Team
Some days, the supply of available curse words is insufficient to meet my demands.
.....Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.