I have an article somewhere that tells how to make shaper cutters. It was written by a pro, not an amateur, and it ain't an easy thing go do and do it right. A 3/4 shaper sounds more like hype, and more equivalent to a router than a shaper. All my needs/wants are taken care of with a router, so were it me I'd pass, and just buy a nice router. But your dime, do as you will.
"It ain't what you're told, it's what you know." - Granny Weatherwax
Gather the villagers, pitchforks, torches; we march at dusk!
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.