The Zimo decoder and the stay-alive capacitors fitted well into the chassis, with both parts fitting within the brass frame. I have fitted a molex plug and socket to the speaker so that it can be disconnected and threaded through the main chassis casting.

I've now attached the fan motor cradle with epoxy to the main motor. The key thing in all of this is that so far everything can be dismantled.

The sound is rather fun, the Simplex engine sounds superb and somehow playing the 'ambient bird song' followed by the 'shotgun' always raises a smile!

So now I can get on with sticking on more of the beautiful lost wax castings.

I also drew up and printed out a little test piece on the DLP printer. I'm considering trying to make some girder bridge panels for a different project and wanted to test what diameter and relief of rivet head I could print. The size of this piece is only 22mm x 20mm and the smallest rivet I could see was .3mm. Something around .45mm diameter seems to come out ok pretty consistently and making a strip of rivets down to 1mm apart seems fine. The missing parts of the edge are down to someone not checking there was enough resin in the machine before starting!

David