Tekenpen Aristo MG1 0,35mm lijndikte
16:09
Drawing with TECH PENS again after someone explained this to me:
8:09
COMO CARGAR UN RAPIDOGRAPH
18:30
Simple & Effective: The Ruling Pen is the Early Version of Drafting and Technical Pens
12:03
Technical pen repair with sand paper
10:03
Isographs test, Aristo vs Rotring
31:08
All About Technical Pens - Rotring Isograph, Staedtler Mars Matic, Keuffel & Esser Leroy
9:42
HOW TO - PROPER USE & HANDLING of TECHNICAL DRAFTING PEN (Tips & Advice)
14:35