Couldn't get a correct first layer, checked everything but the nozzle. It was cracked. Olsson Ruby. : r/3Dprinting
Tiertime Ruby Nozzle 0.4mm / 0.6mm
The Olsson Ruby instructions for use - 3DVerkstan Knowledge Base
The Olsson Line Ruby 1.75mm Nozzle – Voxel Factory
BROZZL Ruby Nozzle for the Volcano Hotend - 3DJake UK
The Olsson Ruby Nozzle | Filament2Print
1.2mm Ruby Tipped Nozzle - CNC Design Ltd
MOD3DP Ruby Tip Nozzle for K1/ K1 Max 3D Printer, Abrasion Resistant, Funnel Shape, One for Any Materials (K1/K1 Max, 0.8mm) : Amazon.co.uk: Business, Industry & Science
New ruby tipped nozzle problems. : r/ElegooNeptune3
BROZZL MK8 Ruby Nozzle - 3DJake UK
Holy crap a wear resistant nozzle that uses ruby. : r/3Dprinting
I printed the ultimate holder for the new Olsson Ruby nozzle. : r/3Dprinting