If you’re using resin 3D printing (Z.B., SLA, DLP technologies) for high-detail prototypes, medizinische Modelle, or functional parts, understanding the cost per gram is critical for budgeting. Unlike FDM printing, resin 3D printing costs aren’t fixed—they range from 0.1 RMB/gram for basic applications Zu 10 RMB/gram for high-end, specialized parts. In diesem Leitfaden werden die wichtigsten Kostentreiber aufgeschlüsselt, bietet praktische Hinweise, gibt Tipps zum Kostensparen, und beantwortet häufig gestellte Fragen, um Ihnen dabei zu helfen, fundierte Entscheidungen zu treffen.
1. Kosten pro Gramm gängiger Harztypen
Der Harztyp ist der größte Kostentreiber, Dabei sind gewöhnliche Harze erschwinglich und spezielle Optionen erfordern Prämien. Nachfolgend finden Sie eine detaillierte Aufschlüsselung der am häufigsten verwendeten Harze:
| Kategorie „Harz“. | Kosten pro Gramm (RMB/Gramm) | Schlüsselmerkmale | Typische Anwendungen |
| Gewöhnliches Harz | 0.02 ~ 0.05 | Niedrige Kosten, grundlegendes Detail, einfach zu drucken; Geeignet für einfache Prototypen | Hobbymodelle, nicht funktionsfähige Ausstellungsteile, grundlegende Designentwürfe |
| Hochleistungsharz | 0.05 ~ 0.2 | Hitzebeständig (bis zu 120 ° C.), Ingenieursqualität (Z.B., ABS-ähnliche Zähigkeit, Duktilität) | Funktionsteile (Z.B., kleine Zahnräder, elektronische Gehäuse, Präzisionsprototypen) |
| Spezielles Funktionsharz | ≥ 0.2 | Biokompatibel, leitfähig, fluoreszierend, oder flammretardant; erfüllt Branchenzertifizierungen (Z.B., FDA, ISO 10993) | Zahnmodelle, Medizinische Implantate, Konduktive Sensoren, Luft- und Raumfahrtkomponenten |
Beispiel: A 200g ordinary resin part costs 4–10 RMB in material alone. The same part made with dental-grade biocompatible resin costs ≥40 RMB—4–10x more—due to its specialized properties and certification requirements.
2. 5 Kernfaktoren, die die Gesamtkosten pro Gramm beeinflussen
The cost per gram of resin 3D printing isn’t just about the resin itself—it also depends on equipment, Nachbearbeitung, Arbeit, and other hidden expenses. Nachfolgend finden Sie eine Aufschlüsselung der einzelnen Faktoren:
(1) Abschreibung der Ausrüstung & Energieverbrauch
Resin 3D printers are more expensive than basic FDM machines, and their depreciation plus energy use adds to the per-gram cost.
| Kostentyp | Kosten pro Gramm (RMB/Gramm) | Schlüsseldetails |
| Abschreibung der Ausrüstung | 0.05 ~ 0.2 | Industrial-grade SLA/DLP printers cost 10,000–1,000,000 RMB; depreciation is spread over 5–10 years. Small desktop printers (10,000–30,000 RMB) have lower depreciation (0.05–0.1 RMB/gram) than industrial machines (0.1–0.2 RMB/gram) |
| Energieverbrauch | 0.01 ~ 0.05 | High-power UV light sources (30–100W) drive energy use; larger-format printers or longer curing times increase consumption |
Schlüsselnotiz: For small-batch users, desktop printers are more cost-effective—their lower depreciation keeps the per-gram cost 50% lower than industrial machines for basic prints.
(2) Nachbearbeitungskosten
Nearly all resin 3D printed parts need post-processing to remove uncured resin, Stärke erhöhen, and refine appearance. Each step adds 0.01–1.0 RMB/gram to the total cost:
| Nachbearbeitungsschritt | Kosten pro Gramm (RMB/Gramm) | Zweck |
| Reinigung (Isopropyl Alcohol) | 0.05 ~ 0.2 | Remove uncured resin from the part surface; prevents stickiness and ensures surface smoothness |
| Sekundäre Heilung (UV/Oven) | 0.05 ~ 0.2 | Improve part strength (increases tensile strength by 20–50%) und Haltbarkeit; reduces residual resin |
| Schleifen/Polieren | 0.1 ~ 0.5 | Smooth surface roughness (Z.B., from Ra 1.6μm to Ra 0.8μm); eliminates layer lines for aesthetic parts |
| Sprühen/Beschichtung | 0.1 ~ 1.0 | Add protection (Z.B., Kratzerfestigkeit, UV -Widerstand) or aesthetic effects (Z.B., mattes Finish, metallic sheen) |
Beispiel: A 100g part needing cleaning + secondary curing costs 10–40 RMB in post-processing. Adding sanding and spraying raises this to 30–190 RMB—tripling the post-processing cost.
(3) Arbeit & Servicegebühren
If you outsource printing to a service provider (instead of using your own machine), labor and service fees can account for 50%+ of the total cost—especially for small batches or complex parts:
| Servicetyp | Additional Cost Per Gram (RMB/Gramm) | What It Includes |
| Basic Service | 0.5 ~ 2.0 | 3D Druck + grundlegende Nachbearbeitung (Reinigung, secondary curing, Unterstützungsentfernung) |
| Premium Service | 2.0 ~ 5.0 | Custom programming (Für komplexe Geometrien) + fine post-processing (Schleifen, Polieren, Beschichtung) + Qualitätsinspektion (Dimensionalprüfungen, strength testing) |
Beispiel: A 50g simple part from a basic service costs 0.03 (Harz) + 1.0 (Service) = 1.03 RMB/Gramm (gesamt 51.5 RMB). The same part from a premium service costs 0.03 + 3.0 = 3.03 RMB/Gramm (gesamt 151.5 RMB)—3x more.
(4) Materialverschwendung
Resin 3D printing requires support structures to hold parts during printing, which increases resin use by 20–50%. Das “waste cost” adds 0.004–0.1 RMB/gram to the total:
| Support Structure Density | Waste Rate | Added Cost Per Gram (RMB/Gramm) | Beispiel (100g Part) |
| Niedrig (Simple Parts) | 20 ~ 30% | 0.004 ~ 0.03 | 20–30g extra resin → 0.4–3 RMB added |
| Hoch (Komplexe Teile) | 30 ~ 50% | 0.006 ~ 0.1 | 30–50g extra resin → 0.6–10 RMB added |
Schlüsselnotiz: Complex parts with overhangs or thin walls (Z.B., Zahnmodelle) have higher waste rates—planning support placement carefully can cut waste by 10–20%.
(5) Bestellvolumen & Mindestbestellmenge (Mindestbestellmenge)
Service providers often offer discounts for large batches, while small orders may incur a “minimum fee” Das erhöht die Kosten pro Gramm:
| Bestellvolumen | Rabatt vs. Kleine Chargen | Beispiel: 100g Ordinary Resin Part (Original Cost: 0.1 RMB/Gramm) |
| Kleine Charge (<100G) | 0% (May have MOQ fee) | 0.1 RMB/Gramm + 50 RMB MOQ fee (gesamt 60 RMB for 100g) |
| Mittlere Charge (100g ~ 1kg) | 10 ~ 20% | 0.08 ~ 0.09 RMB/Gramm (gesamt 8 ~ 9 RMB for 100g) |
| Große Charge (>1kg) | 20 ~ 40% | 0.06 ~ 0.08 RMB/Gramm (gesamt 6 ~ 8 RMB for 100g) |
3. Gesamtkosten pro Gramm: Szenariobasierte Aufschlüsselung
To see how all these factors come together, below are three common printing scenarios—from low-cost hobbies to high-end specialized parts:
| Szenario | Harztyp | Technologie | Gesamtkosten pro Gramm (RMB/Gramm) | Beispiel (300g Part Total Cost) |
| Low-Cost Hobby (Self-Printed) | Gewöhnliches Harz | Desktop DLP | 0.02 ~ 0.05 (Harz) + 0.05 ~ 0.1 (depreciation) + 0.05 ~ 0.2 (Nachbearbeitung) = 0.12 ~ 0.35 | 36 ~ 105 RMB |
| Mid-Range Functional Part (Service Provider) | Hochleistungsharz | Industrie -SLA | 0.05 ~ 0.2 (Harz) + 0.1 ~ 0.2 (depreciation) + 0.1 ~ 0.5 (Nachbearbeitung) + 0.5 ~ 2.0 (Service) = 0.75 ~ 2.9 | 225 ~ 870 RMB |
| High-End Specialized Part | Spezielles Funktionsharz | Industrial DLP | ≥0.2 (Harz) + 0.1 ~ 0.2 (depreciation) + 0.3 ~ 1.0 (Nachbearbeitung) + 2.0 ~ 5.0 (Service) = 2.6 ~ 6.4 | 780 ~ 1,920 RMB |
4. 4 Praktische Tipps zur Reduzierung der Kosten pro Gramm
You don’t have to compromise on quality to lower costs. Probieren Sie diese Strategien aus:
(1) Wählen Sie das richtige Harz für Ihre Bedürfnisse
- Use ordinary resin for non-functional prototypes (Z.B., design drafts) instead of high-performance or special resin—saves 75–90% on material costs.
- Reserve specialized resin only for parts that need its unique properties: Zum Beispiel, use dental resin only for oral models, not for general prototypes.
(2) Optimieren Sie Stützstrukturen, um Abfall zu reduzieren
- Verwenden Sie Schnittsoftware (Z.B., Eine Frühling, Lychee Slicer) to generate minimal but effective supports. Zum Beispiel, use tree supports instead of full supports to reduce resin waste by 20–30%.
- Design self-supporting angles (≥45° for most resins) to eliminate the need for supports in some areas—this cuts waste and post-processing time.
(3) Drucken Sie vor Ort für kleine Auflagen
If you print regularly (Z.B., 10+ Teile pro Monat), investing in a desktop resin printer (10,000–30,000 RMB) eliminates service fees. Zum Beispiel, a 1kg ordinary resin roll printed in-house costs 20–50 RMB vs. 500–2,000 RMB from a service—saving 90% im Laufe der Zeit.
(4) Stapeldruck, um Servicerabatte zu erhalten
If outsourcing, group small orders into a single batch to qualify for service provider discounts. Zum Beispiel, Drucken 5 kleine Teile (total 300g) at once costs 0.75–2.9 RMB/gram vs. 0.75–2.9 + MOQ fees for individual prints—saving 10–40%.
Die Sicht von Yigu Technology auf die Kosten für den Harz-3D-Druck
Bei Yigu Technology, Wir glauben balancing resin type, Technologie, and service is the key to cost-effective resin 3D printing. Many clients overspend by using special resin for simple prototypes or outsourcing small prints that could be done in-house. Our team helps clients select the right resin: For basic drafts, we recommend ordinary resin (0.02–0,05 RMB/Gramm); für funktionale Teile, high-performance resin (0.05–0.2 RMB/gram) bringt Kosten und Leistung in Einklang. We also optimize support structures to cut waste by 20–30% and offer batch service discounts (20–40% for >1kg orders). Our goal is to help clients get high-quality resin 3D prints at the lowest possible cost per gram—without sacrificing detail or durability.
FAQ
- Why is special functional resin (Z.B., dental resin) so much more expensive than ordinary resin?
Special functional resin requires specialized raw materials (Z.B., biocompatible monomers) and strict quality control to meet industry standards (Z.B., FDA for medical use). The certification process (Z.B., ISO 10993 testing for biocompatibility) also adds significant costs—making it 4–10x more expensive than ordinary resin.
- Can I reuse uncured resin to reduce waste?
Yes—collect uncured resin from the printer’s resin tank and filter it through a fine mesh (100–200 μm) to remove debris. Reused resin works well for non-critical parts (Z.B., test prints) and can cut material costs by 20–30%. Jedoch, avoid reusing resin for functional or specialized parts, as it may have reduced strength or consistency.
- How much does post-processing add to the total cost per gram?
Post-processing typically adds 0.05–1.0 RMB/gram, abhängig von den Schritten. Basic cleaning and secondary curing add 0.1–0.4 RMB/gram, while complex steps like sanding and coating add 0.4–1.5 RMB/gram. For most mid-range parts, post-processing accounts for 20–40% of the total cost per gram.