This spool is studied expressly  to wind on 3d printing filament (FDM) but it's also used in strings, ropes and cables market. design consists of a central part with easily recognizable 5 asymmetric sections "alpaplastic style" and ribbing which is similar to "RS 300/15 GZ" model.
Unique spool, it was the first spool in Europe which is able to contain effectively 5 kg of 3d printing filament. Usually made in high impact polystyrene (PS), ABS and polycarbonate (PC).

• d1: 350 mm
• d2: 180 mm
• d3: 52 mm
• d5: 12 mm
• e1: 44,5 mm
• l1: 100 mm
• l2: 90 mm
• Winding volume: 6366 cm3