/diy/ - Do It Yourself

>design and print adapter for hepa filter to clip onto 12v fan
>takes whole day to print
>doesn't fit on fan
>circle approximation measures internal diameter from corners of 24-sided shape instead of from edges
>142.5mm filter needs to fit into 140.5mm hole
>only two walls thick so probably can't carve/sand the adapter to be wider
fug