Mains, PSUs and other goodies.

[Rogue]

Nice bench and a period chair too ;)

If by period you mean "absolute pain in the neck for most uses" then yes. There's a stool around there somewhere that I use, but occasionally the lower seat lets me get adopt a more stable position leaning on my elbows, holding whatever I'm working on right up to the face.

You should lift a floorboard or two and check the joist dimensions before you load the floor too much.

More things to check! And lifting floorboards? I think I'd rather play with the mains again, there's less chance of getting into trouble

For various reasons we've got to have some work done on one of the ceilings underneath so we'll probably have to cut away a square of the plasterboard. I assume we can get a look from underneath. Either that or I'll definately have to wait until the kids are at school and the wife is at work!

...scary numbers etc etc... Again, don't want to be a spoilsport... but you don't know how the timber has faired over the years and it would be unfortunate for your new CNC build to end up in a crumpled heap on the floor below!

Nope, don't worry, I entirely appreciate the points you are making. Is it my first choice of location? No. Is it my only current realistic option for location? Yes. Adopt the guest bedroom? Take garden space to build a shed? The last time I successfully convinced my wife to do anything was when I asked her to marry me and, looking back, I'm starting to wonder if I convinced her to say "yes" or if she tricked me into asking in the first place. While I love her dearly, my jedi mindtricks don't work on her.

I assume that if the joists are too small there's nothing I can realistically do, short of miniaturising the build or rebuilding the attic?