Tools
Free, browser-based calculators and references. No login. Mobile-friendly. Built by makers, for makers.
Pricing
3D Printing Cost Calculator (STL)
Drop an STL and get the true cost — filament, electricity, machine wear, your time, failures and Etsy/eBay fees. Not just grams × price.
Production
Print Time Estimator
Drop an STL, get print time, filament grams, and cost — no slicing, no upload. Exact mesh volume + flow rates calibrated per printer class.
Engineering
Press-Fit & Clearance Calculator
Design fits that work first try: press, snug, slide, or free — printed-on-metal or printed-on-printed. Exact CAD diameters for both parts.
Materials
Filament Remaining Calculator
Weigh the spool, pick the brand, get grams and meters left — and whether tonight’s print makes it. 30+ empty spool weights built in.
Buying
Which 3D Printer Should I Buy?
6 questions, 60 seconds. Scores 60+ printers against your budget, materials, and use case — recommends the 3 best matches with reasons.
Pricing
3D Print Pricing Calculator
Live pricing with 50+ printers, AMS purge waste, Etsy/eBay/Amazon fees, depreciation, failure buffer.
Engineering
Hole Tolerance Calculator
Get the exact CAD diameter for heat-set inserts, M3-M8 bolts, bearings, magnets — material-aware, with calibration override.
Materials
Filament Cost Comparator
Compare 30+ filaments side-by-side for your specific part. Factors density and failure rate — things $/kg comparisons miss.
Pricing
Resin Cost Calculator
Resin volume, FEP wear, LCD lifetime, IPA cycles, wash & cure power, water-washable mode — the cost no other calculator gets right.
Selling
Etsy Fee Calculator
Strip out every Etsy fee for 2026. See your real take-home in 2 inputs.
Materials
Filament Drying Guide
Recommended drying temp and time for every filament material.
Maintenance
Nozzle Wear Tracker
Log nozzle hours and material to predict replacement intervals.
Production
Layer Height vs Print Time
Visualize the tradeoff between print quality and time.