Raw was one of the first aluminum machines that appeared around 2010, the reason that you probably never heard of the machine is that we have sold it to hardcore enthusiasts and not as kits. A raw machine is much stronger that other machines out there and our biggest machine 180x130cm can weight up to 100 kilos. A raw machine uses industrial parts instead of toy parts like all other machines. For example, a raw has:
Steel wheels instead of plastic
Wheel axis is 8mm instead of 5mm
Raw can be build with both belt and racks, the other machines can’t.
Raw uses 15mm steel reinforced belts, others 6-9mm
We use nema 23 motors, many others have nema 17 motors
Raw has steel reinforcements as option for every axle, others don’t
You can upgrade the electronics from Arduino to drivers in an easy way
Raw has a real Z-axis that is super strong, other machines has a very week Z-axis
Steel wheels roll on Steel axis, others have plastic wheels that rolls in an aluminum v-slot?
Steel axis can be replaced easily if worn (never happens) V-groove aluminum bar can’t be replaced without changing the whole aluminum bar.
A standard raw weight about 45-100 kilos, others around 20-30 kilos