FELT!!!! I have my first trial ompleted and wow is all I can say!
I spent a while carding a load of waste wool from Coldharbour mills Fibre Harvest and piled it on the felter as I wanted to see how thick I could go with it. Once sprinkled with water and washing up liqued I turned it on for 15 mins......and waited......

After 15 minutes had passed I turned it over and gave it another 15 mins and whilst it could have done with a bit longer I had to go as I needed to collect smallest son from school.

Here is the result..........3ft x 4ft and half inch thick!