People often ask us why 3D printing takes so long. This post is for anyone waiting on a printed-to-order piece or curious about the process. A printer builds each object one thin layer at a time, and every setting that improves quality adds layers, passes or cooling time.
A print is hundreds of thin layers, each built in turn
3D printing is additive. The printer builds the object up layer by layer rather than cutting or molding it.
Each layer is 0.1 mm to 0.3 mm tall
That is thinner than a human hair, up to the thickness of a few sheets of paper. A 6 inch dragon can be 300 to 600 layers, depending on the layer height chosen.
For every layer, the printer must:
- Heat the filament to a precise temperature, 190 to 260°C depending on the material
- Push the melted plastic through a small nozzle
- Trace the layer's pattern by moving in the X and Y directions
- Let the layer cool and firm up slightly
- Move up by one layer height
- Repeat for every layer
Each layer has to be laid down, bond with the one below and settle before the next begins. There is no way around that.
Two minutes per layer adds up to hours
If each layer takes 2 minutes, counting movement, extrusion and a brief cooling pause, a 400 layer print takes 800 minutes, over 13 hours. Layers with fine detail or long perimeter passes take longer.
Large prints with thousands of layers reach 20, 30 or 50 or more hours. Multi-day prints for large dragons and complex assemblies are normal.
Thinner layers look better and take longer
Layer height is the biggest single trade between print time and finish.
Fine layers, 0.1 mm to 0.12 mm
Layer lines become nearly invisible, so curved surfaces look smooth and fine features like scales and sharp edges reproduce accurately.
The cost is time. Fine layers can double or triple the print duration. A dragon that prints in 8 hours at 0.2 mm might take 18 to 24 hours at 0.1 mm.
Fine layers make sense for:
- Display pieces where the finish matters most
- Designs with fine surface detail like dragon scales
- Pieces that will be photographed or examined up close
- Collectibles where the extra time is worth it
Standard layers, 0.16 mm to 0.2 mm
This is the most common setting. Layer lines are visible but acceptable, and give prints their characteristic look.
Standard layers suit:
- Articulated toys where some texture is fine
- Pieces that will be sanded or painted anyway
- Prints where time matters
- Pieces that do not need a perfectly smooth surface
Thick layers, 0.24 mm to 0.32 mm
Thick layers cut print time, sometimes by half or more compared with fine layers, but leave rough, clearly stepped surfaces.
Thick layers suit:
- Prototype parts where speed matters more than finish
- Internal parts hidden inside an assembly
- Functional items where texture does not affect performance
We usually print detailed display pieces at 0.12 mm to 0.16 mm, and articulated flexi toys at 0.2 mm, where a little texture helps grip. On a dragon with detailed scales, the thinner layers are the difference between good and exceptional detail.
Moving the print head faster costs quality
Printers can move faster than we run them. Higher speed raises the risk of visible defects.
What goes wrong at speed
Momentum has to be overcome at every change of direction. Sharp corners taken fast overshoot and leave ripples called ringing.
Extrusion has a ceiling. Filament can only be melted and pushed through the nozzle so fast. Beyond that rate, gaps appear from under-extrusion.
Vibration increases with speed and can leave visible artifacts or misaligned layers.
Cooling falls behind when layers go down too fast, which causes sagging, stringing and poor bridging.
Typical speed ranges
Slow, 30 to 40 mm/s, gives the highest quality with the fewest artifacts. Print shops often use these speeds for premium pieces.
Standard, 50 to 60 mm/s, balances quality and time for most work, and is the sweet spot for many printers and materials.
Fast, 80 to 100 mm/s, trades some quality for time. It suits less critical prints or printers built for speed.
Speed printing, 120 mm/s and up, needs specialized printers and usually shows compromises.
Different parts of a layer print at different speeds
Outer perimeters print slowest, 30 to 50 mm/s, because they are the visible surface and set the dimensions.
Inner perimeters can go a little faster, 50 to 70 mm/s, with less visible effect.
Infill often prints fastest, 80 to 100 mm/s, because it is internal structure nobody sees.
Supports can print fast too, since they are removed afterward.
Varying speed this way protects quality where it shows and saves time where it does not.
Infill adds hidden hours
Infill is the internal structure of a print. Its density affects both strength and time.
How density changes strength and time
0 percent, hollow, prints fastest but makes weak parts that can collapse under pressure.
10 to 20 percent gives basic strength for lightweight display items and saves a lot of time and material.
20 to 30 percent gives good general strength, including for articulated toys. This is our standard for most items.
40 to 50 percent makes very strong parts for functional use or items under stress.
100 percent, solid, is strongest but takes far more time and material, and is rarely needed outside small high-stress parts.
Going from 20 to 50 percent can add hours to a large print, and the extra material costs more.
The pattern matters too
Grid prints quickly with good strength.
Gyroid gives an excellent strength-to-weight ratio but takes longer.
Honeycomb is strongest but slow, because the tool path is complex.
We give articulated toys with moving joints 25 to 30 percent infill in stress areas to prevent breakage, and decorative display pieces 15 to 20 percent.
Supports are necessary and slow
Designs with overhangs or floating features need support material, and that adds time.
Why supports are needed
Molten plastic droops. An overhang with nothing beneath it sags or fails.
The 45 degree rule: overhangs steeper than 45 degrees from vertical usually need support.
Islands and bridges that start in mid-air always need support underneath.
How supports add time
Support material must be printed and is then thrown away.
Complex supports on detailed designs can double the print time.
Dense support prints slower than infill because it has to be precise.
Removing supports takes time after the print finishes.
How we keep supports to a minimum
Orientation turns problem features to face up where possible, so they need no support.
Careful slicing finds the orientation that needs the least support.
Tree supports use less material and time than traditional supports.
Manual placement adds only the supports a design needs rather than everything the software would generate.
Dragons with spread wings or reaching claws need a lot of support. A dragon print can be 40 percent support material by volume, all of it printed and then carefully removed.
Doubling the size multiplies the time by about eight
Print time does not scale with height. It scales with volume.
Volume grows with the cube of the size
Doubling every dimension gives roughly 8 times the volume, so about 8 times the print time.
A 2 inch dragon might print in 3 hours. A 4 inch version has about 8 times the volume and takes 20 to 24 hours, not 6.
A 12 inch dragon is 4 times the size of a 3 inch one in each direction, so 64 times the volume, which can mean hundreds of hours.
Choosing a size that makes sense
Multi-part printing splits large designs into sections that are assembled after printing.
Scaling decisions weigh whether a bigger piece is worth a much longer print.
We guide customers toward sizes with good presence and reasonable print times. A 6 to 8 inch dragon is usually the sweet spot between impressive size and completion time.
Some materials print faster than others
PLA
PLA tolerates higher speeds better than most materials, bonds well between layers at moderate speed, and cools fast enough for quick layer stacking.
PETG
PETG does best slower, at 40 to 50 mm/s. It strings more at speed and bonds better at moderate speeds.
ABS
ABS warps if printed too fast, because speed builds internal stress. It is sensitive to temperature and rewards patient printing.
The material sets a speed ceiling before quality drops, which is one more factor in total time.
Rushing a print costs more time than it saves
What fails at speed
Layer adhesion fails when layers have too little time to bond, and they separate under stress.
Dimensions drift from momentum and vibration, so parts do not fit.
Stringing and oozing increase when speed prevents clean retraction.
Overhangs sag without enough cooling and ruin the surface.
Ringing leaves visible ripples near corners and edges.
Layer shifts from missed steps or belt slip ruin the whole print.
A failed print wastes everything
A failed print loses:
- All the time already spent
- Material that cannot be recovered
- Electricity and machine wear
- The chance to have produced something good
Reprinting takes longer than printing it right the first time, and a compromised print is worth less to the person who receives it.
We set each print for the best balance of speed and quality. Some designs run faster without any loss, and detailed pieces run slower. We do not rush an order at the expense of quality, because our customers keep these pieces for years.
Good planning saves time without cutting quality
Batch printing
When the print bed has room, we print several items at once. Four small dragons take only a little longer than one.
Using the same settings across similar items reduces setup time, and printers run around the clock when demand justifies it.
Queue management
Urgent orders go first while every machine stays busy. Long prints run overnight, and short prints run during the day where we can watch them and turn them around quickly.
Maintenance
Regular maintenance prevents failures that waste time. We replace worn parts before they cause problems and calibrate on a schedule so quality stays consistent.
What to expect from order to shipment
Typical print times
Small articulated animals, 3 to 4 inches: 4 to 8 hours
Medium dragons, 6 to 8 inches: 12 to 24 hours
Large display pieces, 10 to 12 inches: 24 to 48 hours
Extra-large or complex items: several days
These times assume quality settings.
Print time is only part of production time
Total production time includes:
- Preparation and slicing
- The print itself
- Cooling
- Support removal
- Inspection
- Post-processing, if any
- Packaging
A 12 hour print can take 18 to 24 hours from order to ready to ship.
Rush orders
A rushed print either loses quality or needs priority queue placement and extra monitoring, which costs more. Some items simply cannot be made faster than a minimum time.
We are open about production times so customers know what they are getting and why it takes as long as it does.
Patience shows in the finished piece
Careful settings and monitoring produce better results. Properly bonded layers survive handling, clean surfaces avoid the disappointment of a rushed print, and sound joints keep an articulated toy moving smoothly for years.
Physics sets the minimum
Each layer has to be laid down, bonded and settled before the next one starts. Printers keep getting faster and materials keep improving, but the layer-by-layer process sets a floor on how fast a quality print can be made.
We work with that rather than against it. We print at the speeds that produce durable, good-looking dragons, flexi toys and collectibles, and we tune settings for efficiency everywhere it does not cost quality.
Keep exploring
Every piece in our best sellers is printed to order using exactly this process. Learn more about who is running the printers on our about page, or read how to care for a finished flexi.