Team

Dr Jeffrey Mahachi 

Dr Jeffrey Mahachi is a registered professional engineer and a registered construction project manager. Jeffrey holds a PhD in structural engineering from the University of the Witwatersrand,  a Masters degree in structural engineering from Surrey University (UK), a Masters degree in Information Technology from the University of Pretoria, and a BSc Civil Engineering (Hons) degree from the University of Zimbabwe.  Jeffrey has worked as a project manager and research engineer at CSIR Building Technology, lectured at the University of the Witwatersrand and has done consulting work in civil and structural engineering. He has written two books on structural engineering and presented several papers at international and local conferences and seminars.

Refilwe Lediga

Refilwe Lediga studied Civil engineering at the University of Johannesburg and later on pursued a Masters degree in Engineering focusing on 3D Printing and its applications in the construction sector. He also founded a company called 3D PrintCrete which specializes in the design and manufacturing of 3D Concrete printers in 2015. He has served as the chairperson of the of the South African Institute of Civil Engineering (SAICE) in Johannesburg and in the national executive council of the National Society of Black Engineers (NSBE).He also serves in the national youth council of the Black Business Council in the Built Environment (BBCBE). His experiences also include working as an engineer for Group Five and MPA consulting. He has written conference papers on 3D concrete printing at international conferences.