Three Surnames Servant Archer - Customizable Decoration (Support surface must be changed to non-PETG)

Support interface must be changed to non-PETG material, AMS is required!

Support interface must be changed to non-PETG material, AMS is required!

Support interface must be changed to non-PETG material, AMS is required!

Serious design description:

The Dragon's Tongue Bow was used by Lu Bu when he shot a halberd at the camp gate (no one has ever seen the real thing). The design of this bow exaggerates the bow limb structure, leveraging the characteristics of 3D printing materials and showcasing Lu Bu's extraordinary arm strength (being cool is enough).

This is a real-scale bow that can shoot arrows and can also be customized for cosplay decoration, perfectly suited for Lu Bu, the 'three-surnamed slave', who cosplays and works everywhere to survive 😁😁😁

Actual arrow shooting effect (10m distance is not an issue, accuracy depends on personal skill)

List of required materials:

1. Bow limbs: PETG! PETG! PETG! (Support interface, needs to be changed to PLA or Bambu Lab dedicated support material)

2. Bowstring: 16-strand 111cm bowstring (the shortest recurve bowstring on the market) purchased on Taobao for about 10 RMB (custom bowstrings are expensive, if it's too long, you can only tie knots to shorten it)

   A Taiwanese netizen successfully installed a 100cm Spanish bowstring, making the bow more elastic (stronger elasticity makes it harder to fix decorations)

   

3. Bolts: M3*30 bolts (hex socket or Phillips head are fine, the nut is round), M3 self-locking nuts (the nut is hexagonal)

Printing settings (based on Bambu Lab PETG HF test)

• Set according to the 3mf file: stressed components outer wall layers 4, infill ratio grip = large bow limb > small bow limb, all with local reinforcement
• For printing PETG on the build plate: Apply glue! Apply glue! Apply glue! (Being lazy can waste a lot of material)

• First, print a test piece with your own material to see the effect: 1/3 height of the large limb spring structure, bend it vigorously 10 times without cracking before printing the final model

  

Installation instructions:

1. Remove supports: There are many recessed internal supports at the connection points, requiring pliers to cut the supports and then pull them out whole

   Small parts designed to prevent PETG warping should be removed along with the supports

   

2. Tighten screws: 9 screws, 8 connecting the bow limbs, 1 connecting the handle; find a suitable tool to tighten, otherwise it will be very laborious

   

   

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Custom decoration method (STEP model provided, please modify as needed)

• Fix decorations to the 12 reserved M3 holes on the bow limbs using M3 bolts

• Point-like decorations: one bolt hole for fixation is sufficient

  

• Larger decorative objects: at least 2 bolt holes are needed for stable fixation; consider dividing large objects as the bow limbs bend and deform, but retain a small amount of flexible connection that can bend

Example of a decorated version:

• The bow can be drawn and shot, and decorations will not fall off 😊😊😊