Polarbites B1 Cooler – Open Source Edition

In line with our 2025 Marketing Plan, we officially announce the closure of the B1 Series Project at the end of Q3 2025. B1 has been an important milestone for Polarbites, and we deeply appreciate the support that led to more than 100 units sold.

As part of our CSR commitment, we want B1 to continue contributing to the community. Therefore, the B1 Regular design will be released openly as STL files available on public platforms (such as Printables & Makerworld).

The license allows anyone to print, modify, and even resell based on this design. We believe that by sharing, more innovation will emerge from the community.

If you try printing, remixing, or finding new ideas from B1, we’d be delighted to see them shared. This way, B1 can live on through community creations even though the official project has been closed.

For those who prefer convenience, Polarbites will still provide optional official parts.

Thank you for being part of the B1 journey. Let’s keep growing the DIY cooler ecosystem together.

Open-source release of the Polarbites B1 Cooler (Regular) as part of our CSR initiative.
This design is free to print, remix, and even sell. We believe innovation grows through sharing, and we are excited to see how the community will keep B1 alive in new forms.

Bill of Materials (BOM):

4× M2 5 mm screws

4× M2 3 mm screws

4× M2 6 mm screws

4× springs (10 mm length, Ø2 mm OD)

1× 4510 DC fan

1× TEC1-127xxx 40 mm Peltier module

1× Vertical PD/QC Trigger board

1× Silicone thermal pad (40×40 mm)

Polarbites will also provide optional official parts for those who prefer convenience.

License: CC0 (Public Domain) – free for remix & commercial use.