This bobbin tray is for Class M bobbins used in Longarm quilting machines and Juki industrial machines. This box will fit the bobbins with my longarm bobbin clips.

I did print my boxes at .24 layer height. They take about 3 hours to print. The tray will hold 25 bobbins. The box is about 6.5"x3.5" approx.

https://youtu.be/9FRKYfOKD2c?si=8uBrfbEzVhJxioyN

Video Link