The MeshNomics blog
Guides for makers who sell: licences, marketplace rules, pricing and product research, backed by MeshNomics data.
· Ryan Dacus
How to Fix Reversed Faces (Flipped Normals) in an STL or 3MF
What reversed faces and flipped normals are, why your slicer warns about them, and how to fix them free in your browser or in Blender, without guessing.
· Ryan Dacus
Personalized 3D Printed Gifts: Pricing the Time per Order
Price the minutes each personalized 3D gift order adds. Use example rates, Etsy add-ons and a reusable template; check the license before you list.
· Ryan Dacus
Product Safety for 3D Print Sellers: Toys, Food Contact and Candle Holders
Before you shortlist a 3D-printed SKU: CPSC, FDA and heat-safety checks for toys, food contact and candle holders. Not legal advice.
· Ryan Dacus
Christmas 3D Prints to Sell in 2026: Reading This Season's Demand Signals Before You Print a Batch
Etsy's fall/winter 2026 trend data, translated for 3D printers: what to research, when to start, and what to check before you print a holiday batch.
· Ryan Dacus
How Much Does It Cost to Run a 3D Printer per Hour?
What one hour of 3D printing really costs: electricity, printer wear and failed prints, worked line by line with example numbers you can swap for yours.
· Ryan Dacus
Can You Legally Sell 3D Prints from Thingiverse, Printables or MakerWorld?
Which licenses let you sell prints of Thingiverse, Printables and MakerWorld models, what CC BY, NC, SA and ND mean, and how to check before you list.
· Ryan Dacus
How to Price 3D Prints: Material, Time, Fees and Failures
A step-by-step pricing formula for 3D prints: full cost first, then packaging, fees and margin, with labeled example numbers and the 3× filament trap.
· Ryan Dacus
PETG vs PLA Cost: What the Price per Kilogram Doesn't Tell You
PETG and PLA spools cost about the same, but the cost per print can differ. Density, bed heat and failed prints, worked through with labeled example numbers.
· Ryan Dacus
STL Won't Slice? 8 Common Causes and How to Fix Each One
Model won't slice, slices empty or has missing walls? Check these eight causes in order, from scale and plate position to mesh errors, and fix each free.