Fittings time!
So as I usually try to buy vents "IF" they look right I had a good look around to see what I could find, they where either to big or to small or ugly, so for the first time I decided to try and make some, I spent a night cutting up some styrene ones I had to try to make them look the job ended up with a bag of styrene bits for the bin.
Attempt two.
Brass I had bought a Doming block some time ago to make the fire hydrants for my 34" fire tender but didn't get around to use it so I thought I would give it a go, so as I don't have a sphere turning tool I had to cheat and do it with a file and spinning it and a bit of wet and dry, anyway made a few punches and found that if I did it to the larger size first then did it again on the smaller size it seemed to work best, but my wrists may not work for a week. Anyway I got eight good ones made and trimmed them down and flattened them out on a file then wet dry paper and they came out ok. The tube is just a bit of K&S tube that I cut at 45 degrees then got my only half round file and for once it was the right curve and rounded the cut, I decided to silver solder as it does not show as much as lead solder and if I decide to make them so they can be bolted on, I can soft solder the base without it all falling apart.
The top picture shows the parts, on the top the brass block and some of the punches I made and below the stages to make a vent.
I wanted the vents before I preceded with the hatches so I can place them in the correct place as I had a problem last time with spacing for the vents and opening hatches, and it is sometimes an idea to be able to place some fittings and be able to move then the odd 1/16.