This funnel is available as a replacement for the funnel on the Austrains HO NSWGR C30 Class steam tank locomotive.
Available in either Frosted Ultra Detail or Frosted Extreme Detail.
It has been designed from a plan of the NSWGR C3O funnel and using an Austrains C30 engineering sample smoke box
The funnel on the Austrains C30 has a mould line running vertically down each side and does not have any bolts as these would stop the mouldng from being released from the die.
The funnel has the correct 8 bolts around the flange.
It has been designed to fit in the recessed hole in the smokebox top. The flange on the model funnel is thicker but approximately 2/3rds of the flange will go into the recess so that only a thin edge will show.
The Austrains funnel can be removed relatively easily from the smokebox, just pull on it with your fingers. The pin underneath the 3D printed funnel will fit into the hole in the C30 smokebox and the recess. Take care when fitting to ensure that the flange is sitting straight and is settled into the recess in the smokebox as the Austrains C30 smokebox has a hole for a simple centre pin. Basically there isn't any sort of keying apart from the pin and the recess. This 3D printed funnel has the pin and will fit into the recess.