Lumiero Handheld Projector

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LUMIERO is a small handheld 35 mm projector I designed for a university course on “expanded cinema”. It can handle up to 20 m of film and uses a camera flash as light source(will be changed in future versions). With LUMIERO you as an artist are no longer bound to 24 frames per second – you change the frame rate simply by changing the speed in which you operate the crank.

The light will pulse once for every frame, eliminating the need for a mechanical shutter mechanism while ensuring nearly perfect synchronisation between light and film, if you manage to put the film in exactly the right spot, that is 😉

Future versions might include a lightsound decoder for your beloved talkies, actually if someone wants to build one – go ahead 😉 the backplate should be able to fit an arduino for further experiementing.

This proof of concept still has some mechanical issues mainly with the geneva mechanism in different stages of projection, as well as no spooling mechanism so your film will end up on the floor.

–Credits– Thanks to Lars Grochla for taking the primary image at the Hochschultage 2015 exhibition at Hfk Bremen.

Thanks to Mcinnes81, the pistol grip used here is a modified version of his design “Sony Action Cam pistol grip” at

Thanks also to kellyegan, who created the original openScad file for the film-spools used “35mm film spool (variable sprockets)”, find it at

Note: This whole thing is licensed as CC-BY-NC-SA, except for two parts – the film-spools and the grip are licensed CC-BY-SA ( according to the license of the original parts by kellyegan and Mcinnes81

Release date: August 1, 2017
Last updated: June 25, 2018
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