Picatinny Rail (RDF) Adapters for Finderscope Dovetail and WO Handle Mounting

thingiverse

These two adapter designs give you the option of either mounting an Picatinny Rail RDF (Red Dot Finder) to a Finderscope Dovetail or the Williams Optics Handle (or any 20mm on center M4 hole pattern. Printed in PETG, these adapters have served me well over the course of a full year (I wanted to be sure they are stable enough through the various seasons), and I've had at most around 20 arc sec of variability due to temperature/humidity and handling effects...well within the RDF's X-Y adjustment range. The Handle mount is designed to be mounted to any 20mm on center M4 hole pattern using two M4x20mm SHCS. The Dovetail design is a tight slip-fit onto a standard Finderscope Dovetail. These two adapters I printed with PETG using a 0.6 tip, 50mm/sec, 255 C hotend and 70 C build plate. You could use a 0.4 tip but the accuracy/fit is just fine with a 0.6 tip.