Scales are great bindi.
I had a look at some of the VI equipment suppliers. (Searched VI Thermometers) and they had talking thermometers but not with a probe ( for haning in the wort) as far as I could see. I reckon with the talking Thermometer, we just need to have a chat to one of the suppliers of VI equipment and they could quickly tell us if they are available.
Dependant on the Level of VI, a stick on thermometer with enlarged numbers , more clearly visible may do the trick, but not for everyone.
HK. I agree, there are a lot of things that are possibly just a case of finding a better way to read it.
As you say, adding dots or grooves to the hydrometer is going to put out the calibration. I had thought of this too. Unless the dots were already on the tube (all of them) prior to calibration (they could be stick-on). Then it would be a case of moving them into position during calibration. Then the main problem is them coming off....
Also, the whole hydrometer would need to be elongated to amplify the movement. ie, the hydrometer and the tube would need to be longer AND thinner. Therefore it would not really be as simple as drilling a hole. But it should work.
Bindi, I tried to PM you and either you inbox is full or it is "Off".
I thought you could start with a basic list of steps as followed by you and the fella you did the two brews with. Certainly you are in a much better position to do this as you actually have where as I have not. You will be able to identify steps where you had problems.
Once we get things coming together and identify completed steps, HK can do the layout. Probably if the Volume guage and Hydrometer are to be used, we would need to either make one or work out how best to do so. Thats going to be the real bummer. Maybe someone would fund that side???? but thats a way ahead now.
gotta get back to trying to get a real job, so bye for now.
cheers,
ATOMT.