Eleven black 3D-printed base converters in a range of sizes, each a rectangular frame with an oval recess.

Oval to Rectangle Base Converters 3D Print Full Range

50x25mm Oval to 50x25mm Rectangle Converter x1 pc
$2.52
$2.52
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Eleven black 3D-printed base converters in a range of sizes, each a rectangular frame with an oval recess.
  • Eleven black 3D-printed base converters in a range of sizes, each a rectangular frame with an oval recess.
  • Feature graphic: an oval base sits snugly in a rectangular converter, with an underside opening for easy removal.
  • Size-comparison chart showing the oval-to-rectangle converters drawn to scale against one another.
  • Technical drawing of the 60x35mm oval to 60x30mm rectangle base converter, dimensioned in millimetres.
  • A single converter that turns a 60x35mm oval base into a 60x30mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 60x35mm oval base into a 60x30mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 60x35mm oval base into a 60x30mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 60x35mm oval base into a 60x30mm rectangular footprint, shown loose on white.
  • 25 converters that turn a 60x35mm oval base into a 60x30mm rectangular footprint, shown loose on white.
  • A single converter that turns a 60x35mm oval base into a 60x40mm rectangular footprint, shown loose on white.
  • Technical drawing of the 60x35mm oval to 60x40mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 60x35mm oval base into a 60x40mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 60x35mm oval base into a 60x40mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 60x35mm oval base into a 60x40mm rectangular footprint, shown loose on white.
  • 25 converters that turn a 60x35mm oval base into a 60x40mm rectangular footprint, shown loose on white.
  • A single converter that turns a 60x35mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • Technical drawing of the 60x35mm oval to 75x50mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 60x35mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 60x35mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 60x35mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • Technical drawing of the 60x35mm oval to 100x50mm rectangle base converter, dimensioned in millimetres.
  • A single converter that turns a 60x35mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 60x35mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 60x35mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 60x35mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • A single converter that turns a 60x35mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • Technical drawing of the 60x35mm oval to 100x60mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 60x35mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 60x35mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • A single converter that turns a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • A single converter that turns a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • 25 converters that turn a 75x42mm oval base into a 75x50mm rectangular footprint, shown loose on white.
  • A single converter that turns a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • Technical drawing of the 75x42mm oval to 75x50mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • A single converter that turns a 75x42mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • Technical drawing of the 75x42mm oval to 100x60mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 75x42mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • A single converter that turns a 90x52mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • Technical drawing of the 90x52mm oval to 100x50mm rectangle base converter, dimensioned in millimetres.
  • 3 converters that turn a 90x52mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 90x52mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 90x52mm oval base into a 100x50mm rectangular footprint, shown loose on white.
  • Technical drawing of the 90x52mm oval to 100x60mm rectangle base converter, dimensioned in millimetres.
  • Technical drawing of the 90x52mm oval to 100x60mm rectangle base converter, dimensioned in millimetres.
  • A single converter that turns a 90x52mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 90x52mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 90x52mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 90x52mm oval base into a 100x60mm rectangular footprint, shown loose on white.
  • Technical drawing of the 90x52mm oval to 150x100mm rectangle base converter, dimensioned in millimetres.
  • A single converter that turns a 90x52mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 90x52mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • Technical drawing of the 105x70mm oval to 150x100mm rectangle base converter, dimensioned in millimetres.
  • A single converter that turns a 105x70mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • 2 converters that turn a 105x70mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • A single converter that turns a 120x92mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • Technical drawing of the 120x92mm oval to 150x100mm rectangle base converter, dimensioned in millimetres.
  • 2 converters that turn a 120x92mm oval base into a 150x100mm rectangular footprint, shown loose on white.
  • A single converter that turns a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • A single converter that turns a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • 25 converters that turn a 50x25mm pill base into a 50x25mm rectangular footprint, shown loose on white.
  • A single converter that turns a 50x25mm pill base into a 60x30mm rectangular footprint, shown loose on white.
  • A single converter that turns a 50x25mm pill base into a 60x30mm rectangular footprint, shown loose on white.
  • 3 converters that turn a 50x25mm pill base into a 60x30mm rectangular footprint, shown loose on white.
  • 5 converters that turn a 50x25mm pill base into a 60x30mm rectangular footprint, shown loose on white.
  • 10 converters that turn a 50x25mm pill base into a 60x30mm rectangular footprint, shown loose on white.
  • Technical drawing of the 50x25mm oval to 50x25mm rectangle base converter: 50 x 25mm, 5.5mm tall.
  • A single converter that gives a 50x25mm oval base a 50x25mm rectangular footprint, shown alone.
  • Three converters that give a 50x25mm oval base a 50x25mm rectangular footprint, shown loose.
  • Five converters that give a 50x25mm oval base a 50x25mm rectangular footprint, shown loose.
  • Ten converters that give a 50x25mm oval base a 50x25mm rectangular footprint, shown loose.
  • Twenty-five converters that give a 50x25mm oval base a 50x25mm rectangular footprint, shown loose.
  • A single converter that gives a 50x25mm oval base a 60x30mm rectangular footprint, shown alone.
  • Technical drawing of the 50x25mm oval to 60x30mm rectangle base converter: 60 x 30mm, 5.5mm tall.
  • Three converters that give a 50x25mm oval base a 60x30mm rectangular footprint, shown loose.
  • Five converters that give a 50x25mm oval base a 60x30mm rectangular footprint, shown loose.
  • Ten converters that give a 50x25mm oval base a 60x30mm rectangular footprint, shown loose.
  • Twenty-five converters that give a 50x25mm oval base a 60x30mm rectangular footprint, shown loose.
  • A single converter that gives a 150x95mm oval base a 150x100mm rectangular footprint, shown alone.
  • Technical drawing of the 150x95mm oval to 150x100mm rectangle converter: 150 x 99.51mm, 5mm tall.
Oval to Rectangle Base Converters 3D Print Full Range

Oval to Rectangle Base Converters 3D Print Full Range

$2.52
$2.52
Shipping calculated at checkout.
Key Dimensions · This Option
Fits base 50 × 25 mm oval
Converts to 50 × 25 mm rectangle
Overall height 5.5 mm
Outer footprint 50.0 × 25.0 mm
Material 3D-printed PLA

Measured from this listing's own technical drawing (50x25_oval_to_50x25mm_rectangle_1pc_e1); outer footprint read off the top view. Top face after taper 48.02 × 23.02 mm. The seat is not dimensioned on this sheet, so no seat figure is recorded. This is the OVAL conversion and it is a different part from the 50x25mm PILL conversion on the same listing, which has its own profile and no published drawing. Nominal to_* left as the fit claim per DICTIONARY §3.

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/OVA-REC/50x25-50x25/1 · SHEET 2 / 4

View · Overview

Product overview

Place a miniature on its oval base into one of these converters and it occupies a rectangular footprint — no rebasing, no glue, no magnets, nothing removed from the model. It lifts out again, so one collection can play a rank-and-flank system such as Kings of War and return to its oval-based game afterwards. Sizes run from 60×35 mm ovals up to 150×100 mm rectangles, plus two conversions for 50×25 mm pill bases. Each converter is 3D-printed to order in black PLA in the UK; we usually keep some stock, but we may need a while to process your order.

  • No glue, magnets or rebasing — the oval base drops into a recess and holds by friction fit, and an open underside lets the base be pushed out from below without gripping the model.
  • The base’s top edge sits flush with the converter, so the model is not raised.
  • On the tightest pairs, where the rectangle is barely larger than the oval, the frame cannot close around the base: the part is notched at the ends and grips the base rather than enclosing it; larger conversions are plain plates with a full recess.
  • Textured top surface takes primer and acrylics, so the converter can be finished to match existing basing.
  • 3D-printed black PLA, made to order in the UK — fine layer lines and a Z-seam are normal, not defects, and become less visible under primer.

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/OVA-REC/50x25-50x25/1
Type
Base Converter
Shipping weight
20 g
Conversion
Fits base
50 × 25 mm oval
Converts to
50 × 25 mm rectangle
Geometry
Overall height
5.5 mm
Outer footprint
50.0 × 25.0 mm
Material & finish
Material
3D-printed PLA
Classification
Range
Base Converters
Format
Physical

Product

Oval to Rectangle Base Converters 3D Print Full Range

Code (proj)

CONV/OVA-REC/50x25-50x25/1

Ship. weight

20 g

Brand

Hobby Heaven

Hobby Heaven · Open Basing System

Sheet 2 / 4

End of sheet