Comment by londons_explore
10 hours ago
Whole dollars per pixel is insane!
The whole mechanism looks very 3d printable... I wonder if one could design one with PCB coils and a large 3d print only? If so, cost could probably come down to cents per pixel...
You'd probably also need a single 'C' shaped piece of steel for the magnetic flux path, but you might be able to find a supplier for the right shape already used for something else you can buy in large quantities very cheaply (eg. Steel staples).
These mention 25-30 fps, so the mechanism may cost a bit to be that sturdy.
I wonder if anyone makes cheaper versions that you're only supposed to update at 1 frame per minute or less...