Adventure Force Osprey M-Bow Archery Kit

M-Bow (Mini Bow) 

The Osprey is the toy bow I always wanted as a child. With its huge plunger tube and real bow action, it has tons of potential for fun and modification. 

The goal of this kit was to take advantage of that potential and improve upon the original bow. 

*Osprey bow not included. Cosmetic kit only*

Features 

• Pre-grouped prints for easy slicing

• Adjustable FPS

• Doubled on-board dart capacity

• Working cams 

• Improved swivel release 

• Shock absorption 

• Reduced plunger wear 

Printing Info

All models are oriented how I printed them but you may have better luck with a different orientation. I recommend printing with a brim and at least 25% infill. Parts that require support in their current orientation

• Osprey_Damper

• Osprey_Release

• Osprey_ReleaseL

• Damper_Easy

• Release_Easy

• ReleaseL_Easy

Adjust the scale of the pins in your slicer if they are too tight or loose. 

I included a couple key parts with adjusted tolerances for bambu printers. I print with elegoo printers/filament and find that the tolerances don't always translate. For a looser fit, print the bambu options. 

Tools and Parts

• 2x Nerf Rival ammo

• 4mm elastic cord https://a.co/d/7zIIAHO (or reuse original cord) 

• Super Glue 

• Phillips Head Screwdriver

• Utility Knife or cutting tool

• Deburring Tool (Optional)

• Needle Nose Pliers (Optional)

• Sandpaper/File 

Assembly 

To install the cam bases, trim the original bow arms as pictured below. I used a fresh utility knife to cut through them.

The cam bases should friction fit tightly over the newly cut arms. If you are left handed, flip the cam bases so they won't interfere with your grip. Insert the cam base pins before assembling the cams. 

To assemble the damper, cut two rival rounds in half and glue each half into the circular cutouts in the damper. 

Disassemble/remove the original release by unscrewing the three screws and slide the damper over it. Secure in place with the two damper pins. 

Slide on the new release and secure with the release pin. It is meant to swivel to reduce bending in the plunger rod while priming. A drop of super glue can be added to the pin to guarantee it stays in place. 

After assembling cams, damper and release run a long section of elastic cord around each cam, through the release and tie off the end.  You can adjust the FPS +/- by adjusting the tension in the cord. Be sure to attach the on-board dart storage before installing the elastic.  

Hidden Knot Dual String Set Up

This configuration requires longer elastic but has the potential for higher fps and allows the cams to work. Red dot signifies the hidden knot. 

Original Elastic Set Up 

Reuses the original elastic cord. Prevents the cams from working but makes fps adjustments easier with the exposed knots. Red dots signify the adjustable knots. 

If you have any questions or need a model adjusted, please direct message me and I will get back to you ASAP!

Barrel inserts and More Osprey Accessories https://www.printables.com/@Ghostmanta_3143708/collections/2781876 

Filament

• Elegoo PLA Basic (Apple Green and Hot Pink Spool-Free) https://us.elegoo.com/products/pla-basic-filament-1-75mm-colored-1kg