Mordantly..The foam's trade name is Obomodulan and it is made by this lot
www.obo-werke.de It is used in industry as a base to machine items from cad data using 5 axis machines. The machines we have are about £2,000,000 each and we have three of them! We stick blocks together and machine it into full size car models, or to make full size moulds for making composite car parts without needing to construct a plug.
It aint cheap, and I realy mean that!! The stuff I used (Type 302) is at the cheaper end as it is soft. (you can mark it with your finger nail) and it costs £1250 per cubic metre!!! The stuff I used is just the scrap bits. There is no reason why a former cannot be made from blocks of pine. The knots may prove a pain but it's no big deal, just hit the chisel harder...
Yuri...I will try the coil out next time I test my heaters, as I am still a long way from having a working brewery, but it should be big enough! I must thank you for all your work on Peltier coolers a few years back. I read the lot, and it saves me going down the same experiment. For this coil I will be using tap water, then perhaps cooled and iced water as I have a water chiller that seems quite powerfull and should be able to get a fair quantity of insulated water quite cold prior to my boil. We will see...
Now off to bend some heating elements to the shape I want.....
Linear Mode
