JimmyB
Now retired - trains and fishing

Due to the inclement whether I have completely stripped the Otto and the two "domes" behind the chimney are screwed from inside, so I now think I have found sufficient balance room for the weight. I will hold my shot in place with "casting resin", having looked around lots of varying pot times from 5 minutes to 10 hours also of course is the curing temperature how hot the chemical reaction will become, don't want to melt the plastic - we will see what happens.