Pile of black 30mm to 40mm square base converters, 3D-printed in PLA, with open frames and visible fine layer lines.

30 to 40mm Square Bases Converters 3d Print

1
£1.19
Sale price  £1.19 Regular price 
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Pile of black 30mm to 40mm square base converters, 3D-printed in PLA, with open frames and visible fine layer lines.

30 to 40mm Square Bases Converters 3d Print

£1.19
Sale price  £1.19 Regular price 
Taxes included. Shipping calculated at checkout.
Quantity
Key Dimensions · This Option
Fits base 30 mm square
Converts to 40 mm square
Material 3D-printed PLA
Number of packs
In stock

Same-day dispatch before 3pm Mon–Fri · Free UK delivery over £70 · 30-day returns

DWG · Product Information

PROJ: CONV/SQ/30-40/1 · SHEET 2 / 4

View · Overview

Product overview

Drop a miniature on its 30mm square base into one of these converters and it reads as a 40mm square base — no rebasing, no glue, nothing removed from the model. This is the large-infantry and small-monster step: the base size that big-bodied troopers and smaller monsters commonly sit on. Each converter is an in-house design, 3D-printed to order in black PLA; we usually keep some stock, but we may need a while to process your order. The converters are part of the Open Basing System and work with the range’s own bases, movement trays and other converters.

  • 3D-printed black PLA, made to order — fine layer lines and a Z-seam are normal, not defects, and become less visible under primer.
  • No glue, magnets or rebasing — removable and reusable across the collection.
  • Textured top surface matches the rest of the range for a consistent look.
  • Works with Open Basing System bases, movement trays, plinths and other converters.
  • Available in packs from 1 to 100.

Compatible with popular tabletop miniatures; not affiliated with, endorsed by or produced by Games Workshop.

Notes · Q & A

Can a converter change my base footprint without rebasing?

OBS converters are designed to adapt an existing base where the selected conversion route fits that original footprint. Fit is route-specific, so confirm the selected option and technical drawing before ordering. Check Technical Specifications where added height matters.

How do I choose the correct converter?

Start with the footprint you already have, then select the target footprint you need. Compare both the accepted inner fit and the outer footprint with the technical drawing; matching nominal labels alone is not enough.

How should I use the technical drawing?

Choose your option first, then use the technical drawing and Technical Specifications to check the physical dimensions of the product. When matching an existing part or accessory, use the drawing rather than relying on the product name alone.

Can I rely on the nominal size alone?

No. Products with similar nominal sizes can have different physical dimensions or fit differently across brands and systems. Check the technical drawing, specifications and any product-specific compatibility note before ordering.

Notes · Logistics

Shipping

Orders placed before 3PM (Mon–Fri) are dispatched same day. Free UK delivery on orders over £70. International shipping available.

Returns

If you're not happy with your purchase, contact us within 14 days for a full refund or exchange. Items must be unused and in original packaging.

Table · Specification

Technical specifications

Product details
Brand
Hobby Heaven
Product code
CONV/SQ/30-40/1
Type
Base
Shipping weight
60 g
Conversion
Fits base
30 mm square
Converts to
40 mm square
Material & finish
Material
3D-printed PLA
Classification
Range
Base Converters
Format
Physical

Product

30 to 40mm Square Bases Converters 3d Print

Code (proj)

CONV/SQ/30-40/1

Ship. weight

60 g

Brand

Hobby Heaven

Hobby Heaven · Open Basing System

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