E3D Revo™ Roto Smart Coldside only

Roto is the extruder that Revo deserves. It carefully balances weight (140g) and force (70N+) to provide the lightest, most power-dense 3D printing extruder on the market. This smarter version of Roto has added filament monitoring, an action button, fan speed monitoring and heatsink temperature monitoring to your arsenal. With all these features, you can implement peace of mind within your workflow with remote monitoring and quick, simple maintenance for the most hands-off 3D printing experience ever.