3D Printer Frames (500x500mm)

**Design**
A very rigid frame employing 20x20mm & 20x40mm extruded aluminium. The design was inspired by the CR-10's which had a structurally sound frame resulting in a very stable printer (at relatively low cost).

By combining 20mm and 40mm extruded aluminium, you can reduces the number of corner supports required as the overlapping of the 20/40 extrusions can simply be bolted together. A bit more work tapping the ends but the resulting frame is very stable...

**Use Existing Materials**
The design takes advantage of 'open-build' materials (basically everything required for the build in one place. The pricing was reasonably but I did shop around and managed to save on some items...

**V-Wheels**
I also favor v-wheels over roller bearings for both quieter operation an better precision, after all, you can adjust v-wheels assemblies to eliminate misalignment which is not always possible with bearings construction.

Basically using v-wheels increase the build price quite a b