Here's the optics you need to build your own eyepieces. We include some basic mounting instructions, or use your own ideas. Here's what you get: PLOSSL: Two achromats, one coated and one uncoated. Lens diameter is 14mm. The lenses have a diameter of 14mm.
Charles O'Donnell created some 3D printable lens holders for this eyepiece lens set. To check it out, go to our LINKS page.