OK, bugga the mill, you can carve aluminium with a sharp box knife. So I did.
There must some manufacturing differences between cameras because when I tried to use a single layer of Duct tape on the back of the finger as insulation it would not fit between the sensor and the board.
So switched to some very thin packing tape. Two layers on the back, one on the front against the sensor. I realise this will reduce the efficiency a wee bit but it allowed me to make an 'envelope' for the finger and thus insulate it away from the sensor pins. The tape is very strong but so thin it's see through and as I am not trying to get sub zero temps I don't think it will be a problem.
So we're heading to re-assembly time, Unfortunately the light where I am working is not good after dark and the sky is clearing so I might leave this till tomorrow when rain is predicted as a possibility.
Ignore the black duct tape coverage, that will get refined when I start the TEC install.
What an interesting day !!
