diff --git a/readme.md b/readme.md
index 46aa354..b4b2141 100644
--- a/readme.md
+++ b/readme.md
@@ -370,6 +370,7 @@ Check out my [blog](https://blog.sindresorhus.com) and follow me on [Twitter](ht
 - [MQTT](https://github.com/hobbyquaker/awesome-mqtt) *(an "Internet of Things" connectivity protocol)*
 - [Hacking Spots](https://github.com/diasdavid/awesome-hacking-spots)
 - [For Girls](https://github.com/cristianoliveira/awesome4girls)
+- [3D-Printing](https://github.com/adius/awesome-3d-printing)
 
 
 ## License