This paper discusses the possibility of making an object that precisely meets global structural requirements using additive manufacturing and feedback control. An experimental validation is presented by printing a cantilever beam with a prescribed stiffness requirement. The printing process is formalized as a model-based finite-horizon discrete control problem, where the control variables are the widths of the successive layers. Sensing is performed by making {\em in situ} intermediate stiffness measurements on the partially built part. The hypothesis that feedback control is effective in enabling the 3D-printed beam to meet precise stiffness requirements is validated experimentally.
@article{arxiv.1905.10411,
title = {Additive manufacturing for high precision structural properties via feedback control},
author = {Kévin Garanger and Thanakorn Khamvilai and Eric Feron},
journal= {arXiv preprint arXiv:1905.10411},
year = {2020}
}
Comments
Accepted for publication as a brief paper in IEEE Transactions on Control Systems Technology