◆ Mold library
Free 3D print files for molds and casting
Ready-to-print molds you can download and put on the plate tonight. Every design tells you up front how long it prints and what it is built to cast, so nothing is a surprise six hours in.
◆ Mold library
Ready-to-print molds you can download and put on the plate tonight. Every design tells you up front how long it prints and what it is built to cast, so nothing is a surprise six hours in.
82 designs
Candle wax
Printed two-part housing that casts your own silicone Buddha mold. Then pour wax candles in it.
Pro early access
The classic heart, with a comfortable top rim. For Valentine's, weddings and every birthday tray.
Candle wax
Printed two-part housing that casts your own silicone David mold, for statue candles.
Pro early access
Candle wax
Six pillowy heart wax melts at a time, from a silicone tray you pour yourself.
Print only
A 150 mm honeycomb bowl for keys or decoration. Print it flat, warm it, press it into shape.
Pro early access
Candle wax
A little sheet ghost with big eyes and an "o" mouth, 86 mm tall. A rigid two-part print for Halloween candles.
Pro early access
Candle wax
The viral 27-bubble cube candle, as a silicone mold from a printed hugging shell.
Pro early access
A chunky five-point star with softened tips that cut clean and bake without burning.
Pro early access
Candle wax
A sitting teddy bear with button eyes, a stitched smile and its paws on its tummy. A rigid two-part print.
Pro early access
Candle wax
Nine faceted star wax melts per pour, from a silicone tray you make yourself.
Pro early access
Candle wax
A 90 mm pillar with six lobes and a quarter turn of twist, as a silicone mold.
Pro early access
A 100 mm gingerbread man with sturdy arms and legs that do not snap off the tray.
Pro early access
Candle wax
Nine daisy wax melts with a domed centre and a groove down every petal.
Pro early access
A three-tier Christmas tree with a trunk, sized to decorate with sprinkles and garlands.
Pro early access
Candle wax
Nine hexagon wax melts with a honeycomb pattern pressed into the face.
Pro early access
Candle wax
A traditional straw beehive with coiled bands, an arched entrance and a bee above the door. A rigid two-part print.
Pro early access
A six-arm snowflake with branch tips, chunky enough to cut in one press and bake evenly.
Pro early access
Candle wax
An 85 mm pillar with 16 rounded flutes, as a silicone mold from a printed shell.
Pro early access
Soap
Six scallop shell guest soaps from one silicone tray, ribs and hinge included.
Pro early access
Candle wax
Pointed quartz crystals fanned out of a rough stone base, 98 mm tall. A rigid two-part print.
Pro early access
A cosy winter mitten with a big cuff, made for stripes, dots and names in icing.
Pro early access
Candle wax
A sitting owl candle with ear tufts, big eyes and folded wings, as a silicone mold kit.
Print only
A curved honeycomb eye mesh for masks and helmets. Print it flat, warm it, press the curve in.
Pro early access
Candle wax
Pro early access
Three snowballs and a top hat: a snowman cookie that is easy to decorate for kids.
Pro early access
Candle wax
A low-poly crystal candle from a rigid two-part print. No silicone, no supports on the facets.
Pro early access
Candle wax
Pro early access
A tall candy cane with a round hook, ready for red and white stripes.
Pro early access
Ice
Eight dog bone treats per batch, from a silicone tray you pour yourself.
Pro early access
Soap
An 88 mm soap bar with a rippled face, as a silicone mold from a printed box.
Pro early access
Candle wax
The classic 70 mm sphere candle, from two rigid printed halves. No silicone needed.
Pro early access
Chocolate
Pro early access
A round Easter bunny head with tall ears. Cute plain, cuter with a pink nose.
Pro early access
Concrete
A 100 mm hexagon coaster with three nested grooves, as an open-face silicone mold.
Pro early access
A round, ribbed pumpkin with a stem. Halloween faces or plain autumn, both work.
Pro early access
Chocolate
Sixteen fluted bonbons per pour, from a food-safe silicone tray you make yourself.
Pro early access
Resin
A 50 mm Staunton chess pawn from a rigid two-part print. Cast all sixteen in resin, no silicone.
Pro early access
Plaster
Cast your own 140 mm Venus de Milo in plaster or concrete, from a public-domain museum scan.
Pro early access
Ice
Six big brilliant-cut ice cubes, the kind that makes a drink look expensive.
Print only
A honeycomb bauble in two halves that click together, with a hole in the cap for the string.
Concrete
Reusable two-part mold with an inner core. Cast a ribbed vase or planter in concrete.
Pro early access
A friendly waving ghost with a scalloped hem. The easiest Halloween cookie to ice.
Clay
One handle, swappable pattern rollers. Print more patterns any time.
Pro early access
Plaster
Cast a 95 mm bearded Socrates bust in plaster or concrete, from a public-domain museum scan.
Pro early access
Candle wax
Four wax melt snap bars at a time, poured straight into a printed tray.
Pro early access
Candle wax
A 150 mm taper candle with a standard 22 mm foot, from two rigid printed halves. No silicone needed.
Pro early access
Pro early access
Candle wax
Four scented wax sachets with a raised frame and a hanging hole, from one printed tray.
Pro early access
Candle wax
An 84 mm Christmas tree candle with six layered tiers, as a silicone mold from a printed shell.
Pro early access
A round cat face with pointed ears. Black cat for Halloween, tabby for everyone else.
Pro early access
Candle wax
A 76 mm pumpkin candle with eight lobes and a curved stem, as a silicone mold.
Pro early access
Candle wax
An absolute unit: a round, content cat candle with its tail wrapped round its paws, from a rigid two-part print.
Pro early access
Candle wax
A 72 mm low-poly heart candle, standing up, as a silicone mold from a printed shell.
Pro early access
Plaster
Six leaf-shaped aroma stones in plaster, from one printed tray. Drip oil on, let it scent the room.
Pro early access
Candle wax
A 117 mm dill pickle candle, warts and all, standing on its end. A rigid two-part print, no silicone.
Pro early access
A classic dog bone for homemade dog treats, or bone-shaped cookies for dog lovers.
Print only
A honeycomb pumpkin for Halloween: two halves round an LED tea light, with a hanging hole in the stem.
Pro early access
Plaster
Six crescent moon aroma stones with craters, cast in plaster in a printed tray.
Pro early access
A sitting teddy bear with round ears, paws and feet. Made for baby showers.
Pro early access
Concrete
A fluted concrete tealight holder, 78 mm across, as a silicone mold from printed parts.
Pro early access
Plaster
Six chunky sidewalk chalk crayons from plaster and poster paint, cast in a printed tray.
Pro early access
A puffy cloud with a flat bottom. Pair it with rainbows, raindrops or a baby name.
Pro early access
Candle wax
A 98 mm brain candle, folds and all, the 🧠 side view. A rigid two-part print for Halloween and big-brain moments.
Pro early access
Candle wax
A 72 mm stacked stones candle, three smooth pebbles balanced on each other, as a silicone mold.
Pro early access
Concrete
Two concrete soap dishes with a rim and drain ridges, cast straight in a printed tray.
Pro early access
An eight-petal daisy with a round centre. Spring, Mother's Day and garden parties.
Pro early access
Candle wax
A 60 mm d20 candle with a raised natural 20 on the front. A rigid two-part print for the D&D table.
Pro early access
Plaster
Cast a 100 mm bust of Homer, blind poet of the Iliad, in plaster or concrete. From a museum scan.
Pro early access
Concrete
Four round concrete coasters with ripple grooves, cast straight into a printed tray.
Pro early access
A butterfly with big upper wings and smaller lower ones, ready for colourful icing.
Pro early access
Concrete
Four square art deco coasters with a sunburst in the face, cast in a printed tray.
Pro early access
Candle wax
A 76 mm Moon candle with the real craters, built from NASA elevation data. Silicone mold kit.
Pro early access
A baby bodysuit with short sleeves and snap flap. The baby shower cookie.
Pro early access
Candle wax
A frog in a cowboy hat, the internet's favourite frog, as a candle. A rigid two-part print, no silicone.
Print only
A 110 mm honeycomb heart dish for rings and keys. Print it flat, warm it, press it into shape.
Pro early access
Concrete
Cast a 140 mm classical male torso in concrete or plaster. Silicone mold kit.
Pro early access
Soap
Four scalloped round soaps with a domed top, poured into a printed tray.
Pro early access
A long-necked dinosaur with a sturdy tail and legs. Kids' parties, done.
Pro early access
Candle wax
A 111 mm Greek column candle: fluted shaft, round capital, square plinth. Silicone mold kit.
Candle wax
Pro early access
The 💀 skull, "I'm dead", as a cookie cutter with a stamp that presses in the eyes, nose and teeth.
Pro early access
Soap
Four oval soap bars with a raised botanical sprig on top, poured into a printed tray.
Made a mold yourself?
Send us your STL. If we feature it, you get Pro free for 3 months and your name on its page.
Want a different shape?
The catalog is the shortcut. If the shape you need is not in it, upload your own model and the same generators build the mold around it, in your browser, in about a minute.
Questions
Yes, with a free Meshcast account so your downloads stay attached to you, and there is no password: we email you a one-time link and bring you straight back to the file. The one exception is time-limited: a brand new design is Pro early access for its first 30 days, and after that it is free for every account.
Each design says which material it is built for: candle wax, soap, resin, plaster, concrete, chocolate, ice or clay. The cast material is not cosmetic, it changes the draft angle, the wall thickness and how the piece releases, so a mold built for wax is not automatically right for concrete.
No. Every design prints on an ordinary FDM printer with a 0.4 mm nozzle, in PLA or PETG. Each design page lists the total print time, the footprint in millimetres and whether it needs supports, so you can check it fits your bed before you spend a download.
Selling the physical pieces you cast requires an active commercial licence, which comes with Pro and Founder. Passing on the digital files themselves is never permitted on any plan. The full terms are on the licences page.
Yes, and that is what the rest of the site is for. Every design here was produced with one of the free generators, and each design page links to the one that made it. Upload your own model and you get the same kind of mold shaped around it.