Si está utilizando una impresión 3D fotopolimerizable (P.EJ., SLA, Tecnologías DLP) para prototipos, partes funcionales, o componentes especializados, Comprender el costo por gramo es fundamental para presupuestar.. A diferencia de la impresión FDM, Los costos de fotopolimerización no son fijos: varían desde 0.1 RMB/gramo para aplicaciones básicas a 10 RMB/gramo para gama alta, piezas de grado médico. Esta guía desglosa los principales factores de coste., proporciona referencias prácticas, shares cost-saving tips, and answers common questions to help you make informed decisions.
1. 5 Core Components of Light Curing 3D Printing Cost Per Gram
Light curing 3D printing cost per gram is a sum of tangible components, from raw materials to labor. Below is a detailed breakdown with real numbers to illustrate each part’s contribution:
(1) Resin Material Cost (The Largest Driver)
Resin type directly shapes the base cost—ordinary resins are affordable, while specialized options (P.EJ., dental, a alta temperatura) command premiums.
| Resin Category | Costo por gramo (RMB/gramo) | Características clave | Aplicaciones típicas |
| Ordinary Resin | 0.02 ~ 0.05 | Bajo costo, basic detail; suitable for simple prototypes | Hobby models, non-functional display parts |
| High-Performance Resin | 0.05 ~ 0.2 | A prueba de calor (hasta 120 ° C), engineering-grade (Como abdominio, Dukes) | Partes funcionales (P.EJ., engranajes pequeños, recintos electrónicos) |
| Special Functional Resin | ≥ 0.2 | Biocompatible, conductivo, or fluorescent; meets industry certifications | Modelos dentales, componentes médicos, conductive sensors |
Ejemplo: A 200g ordinary resin part costs 4–10 RMB in material alone. The same part made with dental-grade resin costs ≥40 RMB—4–10x more.
(2) Equipment Depreciation & Energy Consumption
Light curing printers are more expensive than basic FDM machines, and their depreciation plus energy use adds to the per-gram cost.
| Tipo de costo | Costo por gramo (RMB/gramo) | Detalles clave |
| Equipment Depreciation | 0.05 ~ 0.2 | Industrial-grade SLA/DLP printers cost 10,000–1,000,000 RMB; depreciation is spread over 5–10 years |
| Energy Consumption | 0.01 ~ 0.05 | High-power UV light sources (30–100W) drive energy use; higher for large-format printers |
Nota clave: Small desktop light curing printers (10,000–30,000 RMB) have lower depreciation costs (0.05–0.1 RMB/gram) than industrial machines (0.1–0.2 RMB/gram).
(3) Post-Processing Costs
Nearly all light curing parts need post-processing—cleaning, curación, and finishing—which adds 0.1–1.2 RMB/gram depending on complexity.
| Paso postprocesado | Costo por gramo (RMB/gramo) | Objetivo |
| Limpieza (Isopropyl Alcohol) | 0.05 ~ 0.2 | Remove uncured resin from the part surface |
| Curado secundario (UV/Oven) | 0.05 ~ 0.2 | Improve part strength and durability |
| Lijado/pulido | 0.1 ~ 0.5 | Smooth surface roughness (Ra from 1μm to <0.5μm) |
| Pulverización/revestimiento | 0.1 ~ 1.0 | Add protection (P.EJ., resistencia a las arañas) or aesthetic effects (P.EJ., acabado mate) |
Ejemplo: A 100g part needing cleaning + secondary curing costs 10–40 RMB in post-processing. Adding sanding and spraying raises this to 30–190 RMB.
(4) Mano de obra & Service Fees
If you outsource to a service provider, mano de obra (programación, operación, controles de calidad) can account for 50%+ of the total cost—especially for small batches or complex parts.
| Service Scenario | Costo por gramo (RMB/gramo) | Inclusiones clave |
| Basic Service (Piezas simples) | 0.5 ~ 2.0 | 3D impresión + basic post-processing (cleaning/curing) |
| Premium Service (Complex/High-Precision Parts) | 2.0 ~ 5.0 | Custom programming + fine post-processing (sanding/polishing) + inspección de calidad |
Ejemplo: A 50g simple part from a basic service costs 25–100 RMB. A 50g high-precision part from a premium service costs 100–250 RMB.
(5) Material Waste Cost
Light curing requires support structures, which increase resin use by 20–50%. Este “waste cost” adds 0.004–0.1 RMB/gram to the total.
| Support Structure Density | Waste Rate | Added Cost Per Gram (RMB/gramo) | Ejemplo (100g Part) |
| Bajo (Piezas simples) | 20 ~ 30% | 0.004 ~ 0.03 | 20–30g extra resin → 0.4–3 RMB added |
| Alto (Partes complejas) | 30 ~ 50% | 0.006 ~ 0.1 | 30–50g extra resin → 0.6–10 RMB added |
2. Total Light Curing 3D Printing Cost Per Gram: Scenario-Based Breakdown
To see how these components add up, below are three common scenarios—from low-cost prototypes to high-end specialized parts:
| Guión | Resin Cost (RMB/gramo) | Equipment/Energy (RMB/gramo) | Postprocesamiento (RMB/gramo) | Labor/Service (RMB/gramo) | Total Cost Per Gram (RMB/gramo) | Ejemplo (100g Part Total Cost) |
| Low-Cost Prototype (Ordinary Resin + Basic Post-Processing) | 0.02 ~ 0.05 | 0.05 ~ 0.1 | 0.1 ~ 0.4 | 0.5 ~ 2.0 | 0.1 ~ 0.5 | 10 ~ 50 RMB |
| Mid-Range Functional Part (High-Performance Resin + Standard Post-Processing) | 0.05 ~ 0.2 | 0.05 ~ 0.15 | 0.2 ~ 0.7 | 0.8 ~ 3.0 | 0.5 ~ 2.0 | 50 ~ 200 RMB |
| High-End Specialized Part (Special Resin + Postprocesamiento complejo) | ≥ 0.2 | 0.1 ~ 0.2 | 0.3 ~ 1.2 | 2.0 ~ 5.0 | 2.0 ~ 10.0 | 200 ~ 1,000 RMB |
3. 4 Proven Tips to Reduce Light Curing 3D Printing Cost Per Gram
You don’t have to compromise on quality to lower costs. Prueba estas estrategias:
(1) Choose the Right Resin for Your Needs
- Use ordinary resin for non-functional prototypes (saves 75–90% vs. special resin).
- Reserve high-performance/special resin for parts that need their unique properties (P.EJ., heat resistance for engine components, biocompatibility for dental models).
(2) Optimize Support Structures to Reduce Waste
- Utilizar software (P.EJ., Una primavera, Lychee Slicer) to generate minimal but effective supports—cut waste rate from 50% a 20%, saving 0.03–0.07 RMB/gram.
- Design self-supporting angles (≥45° for most resins) to eliminate the need for supports in some areas.
(3) Batch Print to Lower Labor/Service Fees
- Group small parts into a single print job—service providers often offer 20–40% discounts for batches of 10+ regiones, reducing labor cost per gram by 0.5–1.5 RMB.
- For in-house printing, batch jobs reduce setup time, lowering equipment depreciation and labor costs.
(4) Omitir el postprocesamiento innecesario
- For non-visible parts, skip sanding/polishing—save 0.1–0.5 RMB/gram.
- Avoid expensive coatings unless the part needs extra protection (P.EJ., uso al aire libre). Basic secondary curing is often sufficient for most indoor parts.
4. Key Precautions to Avoid Unexpected Costs
- Account for Material Waste: Always calculate 20–50% extra resin for supports—underestimating this can add 10–30% to the total cost.
- Check Minimum Order Quantities (Moq): Service providers often have MOQs (P.EJ., 50g or 10 regiones). Smaller orders may have a “minimum fee” (50–200 RMB) that inflates the per-gram cost.
- Compare Technologies for Simple Parts: If accuracy/surface quality isn’t critical, FDM printing (0.1 RMB/gramo) is cheaper than light curing (0.1–0.5 RMB/gram) for basic prototypes.
Yigu Technology’s Perspective on Light Curing 3D Printing Cost Per Gram
En la tecnología yigu, creemos balancing cost and performance is key to maximizing value from light curing 3D printing. Many clients overspend by using special resin for simple prototypes or over-processing non-critical parts—for example, using dental resin (≥0.2 RMB/gram) for a display model when ordinary resin (0.02–0.05 RMB/gram) obras. Our team helps optimize costs: we recommend desktop printers (lower depreciation) for small-batch in-house use, design support structures to cut waste by 20–30%, and offer batch discounts for service clients (20–40% off for 10+ regiones). For high-end needs, we prioritize cost-effective steps—e.g., using sanding instead of expensive coatings—to keep per-gram costs 10–15% lower than industry averages. Our goal is to make light curing accessible without sacrificing quality.
Preguntas frecuentes
- Why is light curing 3D printing more expensive per gram than FDM?
Light curing uses more costly materials (resina vs. PLA/ABS filaments) y requiere equipo especializado (UV light sources) with higher depreciation. Postprocesamiento (limpieza, secondary curing) is also mandatory for light curing, adding costs that FDM often avoids. Por ejemplo, FDM PLA costs ~0.1 RMB/gram, while basic light curing costs 0.1–0.5 RMB/gram.
- How much does material waste affect the total cost per gram?
Desechos materiales (from supports) adds 20–50% to resin use, increasing the effective material cost by 0.004–0.1 RMB/gram. For a 100g part with 50% desperdiciar, you need 150g of resin—raising material costs by 50%. Optimizing supports can cut this waste to 20%, reduciendo los costos de material por 30%.
- Can I reduce labor costs by doing light curing 3D printing in-house?
Yes—if you print regularly. In-house printing eliminates service provider labor fees (0.5–5 RMB/gram), though you’ll incur upfront equipment costs (10,000–30,000 RMB for desktop machines). Por ejemplo, imprimir 1 kg de piezas internamente cuesta entre 100 y 500 RMB frente a. 500–5000 RMB por un servicio: ahorro entre un 80 % y un 90 % para grandes volúmenes.