3D Print Toolkit

3D Printing Toolkit is the offline companion for FDM 3D printing — the calculators you actually use plus a print-defect troubleshooting guide, all on your phone. No internet, no account, no sign-up.

Dial in a new filament, calibrate your extruder, or rescue a failing print at the printer — every number is backed by a formula you can see, so you know exactly what it's doing.

CALCULATORS (all free)

• Filament cost & weight — mass, volume and price per print
• Flow / extrusion multiplier — correct it from a single-wall measurement
• E-steps calibration — rescale your extruder steps/mm
• Volumetric flow — check a speed against your hot end's limit
• Max print speed — the fastest speed before under-extrusion
• Retraction tuning — distance & speed starting points by extruder and material
• Electricity cost — power use and cost per print
• Solid layers — top/bottom layers for a target thickness
• Resize / scale — scale a model to an exact dimension

Every calculator shows the formula it uses and notes its assumptions — no black boxes, no false precision.

TROUBLESHOOTING (all free)

A print defect → cause → fix reference for the problems you actually hit: stringing, warping, under- and over-extrusion, layer shifting, elephant's foot, Z-banding, blobs & zits, ghosting/ringing, top pillowing and poor bridging. Clear, ordered, and honest about when several causes look alike.

ACCURACY YOU CAN TRUST

✓ Formulas derived from first principles, shown in the app
✓ Material densities are editable typical values, never fixed truth
✓ 100% offline — works at the printer, in the workshop, anywhere
✓ No account, no analytics, no clutter

PRO (optional, one-time)

Everything above stays free, forever. Pro is for power users:
• Save your own filament library (measured densities, prices)
• Save printer profiles and load them into any calculator
• Save and revisit calculation results
• Remove ads

Pro never paywalls a calculator or a fix — only convenience features and ad removal.

Spend less time digging through forums and more time printing. 3D Printing Toolkit keeps the math and the fixes one tap away.