
Figure9. Surfaceroughness comparison between measured andpredicted based on the proposed model asgivenin Equation 5.
A detailed theoretical study on droplet impact geom-
etry and experimental measurement will be required
to confirm the contact angle ϕ for the specific process
under consideration.
4 CONCLUSIONS
In this study the authors have studied the variation of
surface roughness with build orientation for the poly-
jet process for varied process conditions experimen-
tallyand also compared the same with some theoretical
models available in literature. The surface roughness
in general increases with increase in build orientation
with respect to the