Practical guides
Useful answers for a simpler filament shelf.
Straightforward methods for remembering what you own, what each color became, how much might remain, and what a print used in material—without turning a creative hobby into warehouse work.
Track filament without making it a chore
The smallest useful record for connecting colors, spools, and finished prints.
Read the guide → 02 · ESTIMATEEstimate how much filament is left
Use a simple usage ledger for planning, and a scale when you need a physical answer.
Read the guide → 03 · CALCULATECalculate material cost per print
A transparent grams-based formula, worked example, and the costs it does not include.
Read the guide →How these guides are written
Answer first
Each page starts with the practical answer before adding method, examples, and caveats.
Assumptions shown
Estimates are labeled as estimates. We separate recorded usage from a real measurement.
Made for personal makers
The advice focuses on useful creative records, not procurement, warehouse, or production planning.
Keep the colors. Remember what they became.
Spoolery connects your filament shelf, finished prints, grams used, and simple cost estimates in one private iPhone app.
