oPen 2 Fisher Space Pen SU4F Adapter

This is an adapter that allows you to use a Fisher Space Pen SU4F with an Olight O-Pen 2. The refills can be readily purchased from eBay and Amazon from a variety of sellers. You MUST use the Fisher Space Pen SU4F refill as it is the only one that is short enough to fit within the O-Pen 2. Furthermore, prior to inserting the refill into the adapter, make sure you snap off both of the 2 extenders attached to the Space Pen refill. They do not contain any ink and are only there to make them long enough for some other pen bodies.

Print Settings

Layer Height: 0.2mm
Perimeter: 0.45mm
Infill: 100%
Supports: No
Brim: Yes

I printed with 0.45mm width and perimeters. If you use something different, you might have to slightly enlarge or shrink the print to make the hole fit the SU4F refill.