49mm Lens Cap (Various Brands)

thingiverse

This lens cap requires a spring, approximately 4.2 millimeters in diameter, which can be taken from a twisting ballpoint pen or clicker pen. The design is far from ideal and needs revision to achieve a tighter fit due to excessive play in the clips; however, it is sufficient for attaching to an unused lens. Available options include Pentax, Olympus, Minolta, Fujica, and blank versions of the lens cap. Printing information: For the cover body, print at 0.1 millimeter layer height with the main face oriented towards the print bed, requiring no support structures. For the cover clip, print at 0.05 millimeter layer height with finger grooves facing upwards, necessitating support structures. Support structure configuration details include a 34 percent infill percentage, an extra inflation distance of 0.30 millimeters, zero dense support layers, a 40 percent dense infill percentage, and printing support every one layer. Horizontal offset from the part is 0.90 millimeters, with three upper and lower vertical separation layers.