Stephem Holmes

Stephen Holmes

Stephen Holmes is DEVELOP3D’s Editor-in-Chief – marshalling the magazine, and online space. With 14 years experience covering a wide gamut of design and engineering, his current role is mix of interviewing designers for in-depth features, and keeping on top of the latest industry news.


Greg Corke

Greg Corke

Greg Corke is DEVELOP3D’s Managing Editor and resident workstation specialist. There’s nothing he likes more than putting the latest kit through its paces in 3D design, visualisation and simulation tools… well, there’s always travel, cooking, music and Arsenal as well.


SJ Headshot MAIN


Contributor SJ is a Metal Additive Engineer, aka THEE Hot Girl of Metal Printing. She currently works as a metal additive applications engineer providing AM solutions and 3D Printing of metal parts to help create a decarbonised world.



Laurence Marks

Contributor Laurence Marks has over 30 years experience with simulation technologies.

Currently visiting research fellow at Oxford Brookes University, he’s involved in simulation projects that include two of his interests: life sciences and motorsports

Erin McDermott

Erin McDermott

Contributor Erin McDermott is Director of Optical Engineering at Spire Starter and a digital nomad. She travels the world meeting hardware engineers who don’t know that things using light (cameras, LED illumination, LiDAR, laser processes etc) need competent design, optimisation, and tolerancing like the rest of their widget



Martyn Day

Martyn Day is DEVELOP3D’s consulting editor and has been writing about design and the business of CAD for close to 30 years. Everyone knows Martyn. He’s always the one asking the CEOs the difficult questions. And the one carrying 17 different tech devices in his backpack.