Thanks for the kind words guys, much appreciated.
Gav
I am all for modelling the parts and believe I am capable in doing so as well as proto-typing parts but doubt PLA will be suitable for impact parts but they are working on lots of new materials now. Also the marble effect could not be achieved by the current printing process or materials though I am working on a project that may well may be able to head in this direction but that is 6-12months away if it works - entering new grounds.
Hopefully with support with people buying these parts I can grow this venture into something where I can invest in other machinery and turn it into a business that I can look after my family but I am a long way off that.
Also with your last comment about many will follow - I am working towards a few developments attempting to be innovative with the goal of 6 -12 months with the vision to try and be in the leading pack. So head down, bum up.