70 lbs Compound Crossbow by YeetYeet

YeetYeet

Hobby & DIY>Sport & Outdoors

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Description

Compound crossbow made primarily out of 3D printed parts.
This is not a toy. Crossbow had measured 70 lbs of force, but this depends on the amount of tensioning and used PETG strength.

BOM and instructions are in the provided pdf assembly manual. I would recommend reading the pdf before starting this project.

All bolts used are Hex socket head (DIN 912)

The crossbow has picatinny rail which can be used to mount a scope.

Feel free to use the provided .step file to create new improvements and accessories.

If you want to support me:
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Documentation (1)

Bill of Materials (1)

assembly manual.pdf

Comment & Rating (12)

@letitbe.7

hello. Im disappointed... I print everything in ASA 100% and at first arming foot thing blown. At second try it was ok. At third bearing goes away. And at the end one of "circles" fuc*ed. But i try 🤣 I do not recommend to print this sh*t. Better buy cheap bow.

The designer has replied

@YeetYeet

Skill issue bro. I printed mine two years ago and regularly use it. It holds to this day. From your photos I can see that you have weak layer adhesion. Maybe try printing at higher temperature.

(Edited)

@zackza

use pla+ asa is weak

@kitkattimtam

is this legal in australia?"

The designer has replied

@YeetYeet

Not sure mate. You must check your local legislation about this stuff.

@RayBourke3D

I doubt it.

@scott.coombe

No it isn't.

@andreihtc3

Hello good sir, can you tell me which parts of the crossbow are NOT 3d printed? What do I need to get on top of the 3d printed parts to make this whole boy work. Also can I just print the metal parts out of CF-Nylon ?

The designer has replied

@zackza

I bet u can . but it's just a big metal tube u could prolly even use wood!

@YeetYeet

Sorry for the late reply, but basically everything from BOM is what you need to provide besides the 3D printed parts. It's mainly the 3030 aluminium profile for the body, some springs, bolts and nuts etc...