laser cutter/engraver rebuild build log

[Boyan Silyavski]

Thanks.

At the second link they seem they have also slightly bigger 60x60mm.

i figured why the 3:1 ratio, they build it for time lapse photography, where a resolution is needed.

[gavztheouch]

i figured why the 3:1 ratio, they build it for time lapse photography, where a resolution is needed.

Its also common for lasers to have a 3:1 reduction ratio. I think it is to help the motor overcome the inertia due to the high acceleration and quick changes in direction?