Take a photo of the object from all angles, I usually end up with 40 photos. Don't move or spin the object, the static background details help align the images and you want the lighting to be consistent. Smartphone cameras actually work best for small objects because their tiny aperature keeps everything in focus.
I've used the turntable laser scanners (NextEngine specifically) but it is far from automated, requires hand alignment of point clouds. Photogrammetry approach was much lower effort.
But really this gives you a mesh, which is far from being a CAD drawing. Taking measurements and drawing from scratch is usually how I've seen it done when accuracy matters.
Take a photo of the object from all angles, I usually end up with 40 photos. Don't move or spin the object, the static background details help align the images and you want the lighting to be consistent. Smartphone cameras actually work best for small objects because their tiny aperature keeps everything in focus.
I've used the turntable laser scanners (NextEngine specifically) but it is far from automated, requires hand alignment of point clouds. Photogrammetry approach was much lower effort.
But really this gives you a mesh, which is far from being a CAD drawing. Taking measurements and drawing from scratch is usually how I've seen it done when accuracy matters.