Open Basing System (OBS) – Official Changelog

Welcome to the official development log of the Open Basing System (OBS).

This post serves as a central, continuously updated record of all changes, improvements, and additions made to the system. Instead of publishing separate announcements, we document every important update here — clearly, chronologically, and transparently.

If you want to stay informed about the evolution of OBS, this is the place to check.

💬 Suggestions & Community Feedback

OBS is built and expanded based on real hobbyist needs.

If there’s a size, shape, converter, or feature you’d like us to add or improve, you can:

Leave a comment under this post
Email us at customersupport@hobbyheaven.org
Use the contact form available on our website

Many additions to the system start as customer suggestions.
If you have an idea — let us know.

12.03.2026

Added Full Range of Square → Rectangle Base Converters

We’ve now added the full range of square to rectangle base converters to all our stores.

These converters are designed to help adapt square-based miniatures for systems that use rectangular bases, while keeping unit formations clean and compatible with movement trays.

The complete range is now available across all our stores.

10.03.2026

Update – 120×95 to 150×100 mm Rectangle Cnverters

Following customer feedback, we’ve made a small adjustment to our 120×95 → 150×100 mm rectangle converters.

The previous version could be slightly too tight with some bases, so the design has now been updated to provide a better fit and easier insertion, while still holding the base securely.

The revised version is now in production and all newly printed converters will use the updated dimensions.

Thanks to everyone who takes the time to send feedback — it really helps us refine the range.

18.02.2026

Added 3D Printed PETG Bases

Following a customer request, we’ve added the following 3D printed PETG bases to our range:

55mm round bases
True 60mm round bases
75mm round bases
75mm square bases

All items are available on all our sites.

Thank you for your suggestion!

17.02.2026

Improved 60mm Flying Bases

We’ve significantly upgraded our 60mm flying bases:

Updated plastic in both bases and stems to improve overall appearance
Reinforced stems for increased durability
Added new variants
Increased maximum purchase quantity to 100 units
Introduced option to buy stems and bases separately
Significantly reduced prices

This is now a superior base compared to competing products.

Available now on all our sites.

12.02.2026

Updated 130mm Bases

We’ve updated our 130mm bases with the following improvements:

Improved wall thickness
Adjusted base height
Enhanced plastic quality
Reduced prices

The updated version is now available on all our sites.

05.02.2026

Added Bases and Converters

Following a customer request, we’ve added:

50x25mm oval bases
50x25mm oval to 60x35mm oval base converters
50x25mm pill to 60x30mm oval base converters

All items are now available on our eBay store and the Hobby Heaven website.

31.01.2026

Added Movement Trays Adapters

Following a customer request, we have added new movement tray size adapters to the Open Basing System.

- 5x2 and 5x4 movement tray adapters are now available in the following configurations:

20mm to 20mm round-to-square
20mm to 25mm round-to-square

These adapters are now available on our eBay store and the Hobby Heaven website.

26.01.2026

Added Converters

- 20mm to 25mm and 20mm to 20mm round-to-square converters are now available on our eBay store and the Hobby Heaven website.

25.01.2026

Added Converters

- 50x25mm pill to 50x25mm Rectangle and 50x25mm pill to 60x30mm rectangle converters are now available on our eBay store and the Hobby Heaven website.