Got bored and needed a Coronavirus Quarantine project... so I used my copy of Solidworks (an EAA member benefit!) to design and build a non-firing, full-scale, replica Lewis Gun. Instructions here:
http://www.wanttaja.com/Lewis/lewis_gun.html
The Solidworks files required for building can be found at:
http://www.wanttaja.com/lewis.zip
Ron Wanttaja