Chris has been an Executive Member of the ASTM F42 AM standards committee and a participant in the BSi initiative of AM standards development. Chris is a regular presenter at international conferences, a panel member for EPSRC and a reviewer for European and US funding agencies including NASA. Chris is also a reviewer for numerous international journals in the fields of Additive Manufacturing and 3D printing materials, business and socio-economic aspects as well as optical sensor systems and methods.