After you collect more than a couple colors of filament you very quickly forget what each looks like when they are printed. To the rescue comes the filament test cards! No more will you need to dig out a part you made 6 months ago to see if this or that orange filament look better when printed.

When designing these I prioritized printing speed and simplicity, I always found it pointless to include random stuff on filament test cards if it serves no functional purpose. With a transparency testing section and a hole if you want to keep these on a ring, this may be as simple as you can get!

The benefit of this simple design is the fact that these print in well under 30 minutes! Budgeting 30 minutes per print gives enough time to change filament and set up the next print. I was able to print a test card for all 8 of my colors in just under 4 hours!

Looking for a fancy way to store the test cards? Check out my wall mounted storage solution on my profile for a simple way to keep these near your printer.