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v2026.1104 Nov 2026

120×60 mm converters and bigger tray adapters

Two converters up to 120×60 mm, 97 new round to square tray adapters in three listings, and links between all our tray listings.

Builder Converters Trays

OBS 2026.11: 120×60 mm converters and bigger tray adapters

Two new converters for our 120×60 mm size, 97 bigger round to square tray adapters, and an easier way to move between all our tray listings.

Added

4 Nov 100×50 → 120×60 mm converter: a closed frame with a 100.2 × 50.2 mm pocket, 6 mm high. For chariots, war machines and large models. 100x50 to 120x60mm Rectangle Bases Converters 3d Print
4 Nov 100×60 → 120×60 mm converter: a plate with 6 mm end stops; the long sides stay open, flush with your base. 100x60 to 120x60mm Rectangle Bases Converters 3d Print
4 Nov Both converters: our own design, printed to order in black PLA, in packs of 1, 2, 3, 5, 10 or 25. No glue needed; a little of our Flexi Putty holds the base firmer and still lets it lift out.
7 Nov Round to square tray adapters: 97 new, bigger formations, 258 in all, now in three listings: Round to Square Movement Tray Adapters for 20mm & 25mm Round Bases, Round to Square Movement Tray Adapters for 28mm & 32mm Round Bases and Round to Square Movement Tray Adapters for 40mm to 100mm Round Bases.
7 Nov The new sizes, bases across × ranks: 20 → 20 and 20 → 25 mm now cover 1×1 to 5×5; 25 → 25 mm goes up to 10×6; 25 → 30, 28 → 30 and 32 → 32 mm up to 9×6; 40 → 40 mm up to 7×6; 50 → 50 mm adds 5×1 to 5×5.
7 Nov Every movement tray and tray adapter page now ends its Technical specifications table with a "Movement tray range" group: links to all our other tray and adapter listings, plus all trays in one place.

On the bench

Before we grow the Base Builder any further, we're reworking how it looks and works, to make designing your base or tray easier.
We may also give the Base Builder a light theme.

Images

Black 3D-printed closed-frame base converter, labelled 100x50mm to 120x60mm — The 100×50 → 120×60 mm converter

Black 3D-printed plate converter with a raised end stop at each end, labelled 100x60mm to 120x60mm — The 100×60 → 120×60 mm converter

Two black movement tray adapters with round recesses: a ten-seat rank beside a two-seat tray for large bases — Round to square tray adapters