These are some of my most famous Gmod Contraptions and Maps.

This is my Ultimate Train, a streamlined Train with a 1,050 meter rocket for a boiler, though it's not realistic by definition, it is one of the largest trains capable of maneuvering on the tracks of TT25.

This is my 4-2-2 Camelback Steam Locomotive, it uses complex wiring and a standardized piston setup to simulate a realistic steam engine, it was my first, and last attempt at such a setup to propel a train.  The design is based on the Camelback locomotives which were designed to enhance driver visibility in engines with large fireboxes, where a normal cab design is impossible.

My only map ever made for Gmod is gm_dhpb_dev[#].

[#] indicating whatever version it is.

My map is designed to offer all of the features that other maps either lack, or do in my opinion incorrectly.  It includes 2 empty building rooms, a gokart race track, a small robotics arena, and a flattened grass area above the lower rooms.