#1071 HOn30 Monson #4 3DP kit, RTR drive chassis - The rod hole is

- The rod hole is slightly widened so that the rod will turn even if the wheel center deviates slightly from the quarter

Overall dimensions are about L40xW16xH23mm

engine and universal joints

- Our 12V coreless motor

- The chassis is made of 3D printed high performance UV resin and is coated to reduce wear and already painted black

#1071 HOn30 Monson #4 3DP kit, RTR drive chassis - The rod hole isPrototype Monson Railroad No. 4, 0 4 4T Forney locomotive built by vulcan iron works in 1918 Instruction See the URL on the label of the package box. You can easily access by scanning the QR code that also printed on the label with your cell phone camera. Features HO scale 9mm gauge, it can run on small curves over dia 100mm, and designed with "a two point support system" so that the driving wheels follow steps on rails. Equipped with our new 12V