Thought I'd have a go at one of these in case LFL pull the plug on blasters again this year for the EPVIII premier, won't be 100% accurate as there are limited images and I'm building it "old school" so definitely will be basic. It may still go pew pew though, depends on what you have noticed in the limited images available ;).
Started with the sizing of the blades
On to the main tube and working out the slotted holes
On to the blades, had to cut double the amount as I didn't have the right thickness material, then glued them together
Some details on the shaft
Centre sections of the blades and covers, then glue
Detail sections, made one then cast and made from plastic resin
Next will be work out the attachment of the blades and if I can make it folding