Over time small bits of cured resin can accumulate in your resin tank - lots of things can cause this ranging from from canceling a print midway through to being a bit too ambitious and trying to print a model with a full head of hair. Regardless of how it got there, it needs to be removed for optimum print quality. In order to do this I have designed a tank strainer that can be printed on your Form 1.
The strainer comes in two pieces - a handle and strainer. Print both parts on your Form 1 then press the two parts together.
To use the strainer simply strain it through the resin to collect any bits, give it a gentle shake above the resin tank to let any excess resin drip off, rise it in your alcohol bath to clean it and then let it dry for the next use.