Description

75mm Round Bases – PETG 3D Printed | Hobby Heaven UK

Specifications

75mm fills the gap between 60mm and 80mm – ideal for larger characters, small monsters, and centrepiece models that need room to breathe without going full monster-base territory.

Open Basing System (OBS)

Most systems jump from 60mm to 80mm+. We made 75mm because hobbyists asked for it – the “in-between” size that corporations ignore. Your models, your choice.

Perfect For

Centrepiece characters Small-medium monsters Large heroes Display pieces Scenic dioramas Warlords Medium mechs Competition entries

When 60mm feels tight but 80mm+ looks excessive. Room for scenic basing without overwhelming smaller models.

Why PETG?

Tough
Impact resistant Heat Safe
Won’t warp Paintable
Primer & paint Glue Ready
CA & plastic cement

About FDM Printing

Seams: FDM prints have a visible “Z-seam” – a thin vertical line on the base edge. This is not a defect, it’s normal.

Layer lines: Subtle horizontal lines may be visible. These largely disappear after priming.

For glass-smooth display pieces, resin might suit you better. For gaming, these work brilliantly.

Prep Tips

• Wash with soap & water before priming
• Prime with Vallejo, Army Painter, or Citadel spray
• Sand with 400-600 grit if ultra-smooth needed
• Pin heavier metal/resin models – PETG drills cleanly

FAQ

Is 75mm a standard size in any game system?

Not really – most systems jump from 60mm to 80mm+. That’s exactly why we made it. OBS fills the gaps corporations ignore.

How does 75mm compare to other sizes?

About 25% larger than 60mm (or GW’s 63mm), noticeably smaller than 80mm+. Good middle ground for models that outgrew 60mm.

Do I need to prime them?

Highly recommended. Acrylic paint on unprimed PETG can scratch off.

Hobby Heaven UK Check our shop for more OBS sizes