Data-driven studies on materials, layer parameters, infill density, and surface finish — built to help engineers and designers make informed decisions when manufacturing with additive technology in Morocco.
Research and experimentation are the foundation of reliable additive manufacturing. Understanding how 3D printing materials behave under different conditions — temperature, layer height, infill pattern, print speed — is what separates consistent, professional results from unpredictable output.
This research hub documents controlled experiments and analytical studies conducted by the SARMION engineering team. Each study is designed to answer a practical question faced by engineers, designers, and product teams: which material is strongest for this load case? What layer height produces the best surface finish without sacrificing structural integrity? How much does infill density actually affect mechanical performance?
The studies on this page are drawn directly from our production environment — the same printers, materials, and parameters used in professional 3D printing services in Morocco every day. This is not theoretical data. It is measured, reproducible, and immediately applicable to your next project.
One of the most fundamental questions in 3D printing material testing is which material is strongest for a given application. The answer depends not only on the material itself, but on the geometry, print orientation, layer height, and the type of load the part will experience in use. Our 3D printing materials research quantifies these variables with real test data.
PLA consistently delivers the highest dimensional accuracy and performs well in tensile strength tests when printed at optimal settings. In our controlled comparisons, PLA outperformed ABS in tensile strength by approximately 12% at standard layer heights — a result consistent with published academic data. However, PLA's lower heat resistance makes it unsuitable for applications involving temperatures above 60°C.
ABS compensates with greater rigidity and machinability. It tolerates post-processing operations — drilling, threading, sanding — without delamination, and maintains structural integrity at higher ambient temperatures. For industrial enclosures, replacement parts, and mechanical housings, ABS remains the preferred choice in our PLA vs ABS strength evaluation across real-world use cases.
PETG sits between the two: offering improved toughness over PLA and better surface quality than ABS, with excellent resistance to impact loading. Our material testing consistently shows PETG as the most versatile option for structural functional parts — particularly those with thin walls or complex load paths that would risk fracture in PLA.
All material tests are run on our own FDM equipment using the same print profiles applied to client orders. Test results reflect the real performance you can expect from parts we produce — not laboratory abstractions.
Layer height is one of the most directly controllable parameters in FDM 3D printing, and its effect on both 3D printing layer height strength and surface quality is substantial. Our experimental data shows a strength variance of approximately 24% between parts printed at 0.10mm and those printed at 0.30mm — a difference significant enough to determine whether a functional part passes or fails in service.
Thin layers (0.10–0.15mm) produce the strongest parts along the Z-axis because each layer bonds more intimately with the one below it, reducing the voids between filament lines that are the primary site of layer delamination failures. Thin layers also produce smoother external surfaces, with lower Ra (arithmetic mean roughness) values that require less post-processing for aesthetic or aerodynamic applications.
Thicker layers (0.25–0.30mm) substantially reduce print time — a 0.30mm layer height can cut production time by 50–60% compared to 0.10mm — but the trade-off is visible layer lines and reduced Z-strength. For prototypes where speed matters more than finish, or for internal structural blocks where surface quality is irrelevant, thicker layers are the economically rational choice.
Our research consistently confirms that 0.20mm is the optimal layer height for the majority of professional applications: it provides a smooth, near-injection-moulded surface finish while maintaining strong inter-layer adhesion and keeping production time manageable.
Our research confirms 0.20mm as the optimal balance for most professional applications. Layer height is set per order based on your functional requirements — no extra configuration needed.
The interior of a 3D printed part is rarely solid. Infill is an internal lattice structure — invisible from the outside but critical to mechanical performance, part weight, and production cost. Our 3D printing experiments on infill density demonstrate a strength gain of approximately 38% when moving from 15% to 60% infill — a result that has direct implications for engineering and product design decisions.
At low infill percentages (10–20%), parts are lightweight and print quickly, making them ideal for concept prototypes, scale models, and visual display pieces where structural load is minimal. The part will appear solid from the outside but flex or deform more easily under pressure. For prototype applications, this is often the right trade-off: less material, shorter print time, and sufficient rigidity for form evaluation.
Functional parts — brackets, housings, fixtures, clips, enclosures — typically require infill in the 40–60% range. At this level, the part resists bending under moderate loads and survives repeated assembly and disassembly. The weight increase over low-infill is noticeable but acceptable for most engineering use cases.
For mechanical components under heavy or dynamic loads — such as automotive mounting brackets, jigs, fixtures, or structural nodes — infill of 60–80% or full solid infill is warranted. Our research shows diminishing returns above 80%: the additional material cost and print time rarely justify the incremental strength gain beyond that threshold, as part failure typically occurs at surface layer delamination rather than internal infill collapse.
Infill percentage is recommended by our engineers based on your application during the design review phase. You receive the optimal infill for your part's function — not a generic default setting.
The value of 3D printing research is realised when its findings are applied to real industrial problems. Understanding material behaviour, layer parameters, and infill performance translates directly into better decision-making for engineers, product teams, and manufacturers across every sector that uses additive manufacturing.
In engineering and industrial manufacturing, research into material strength and infill geometry directly reduces the rate of part failure in service. Engineers can specify PETG at 60% infill with 0.15mm layers for a bracket that must survive vibration fatigue — a decision informed by data rather than trial and error. The result is fewer iterations, lower waste, and faster time to production.
For product design teams, research on surface finish optimisation — specifically the relationship between layer height, material, and Ra surface roughness — directly affects how many post-processing steps are required before an investor-ready prototype looks acceptable. A single well-chosen parameter set can eliminate one to two finishing steps from the workflow.
In architecture, studies on SLA resin detail resolution allow studios to produce highly complex scale models with confidence in the minimum printable feature size. In manufacturing, infill research reduces material consumption in jigs and fixtures without compromising dimensional stability. Each industry benefits from a different subset of the data — and every project SARMION handles draws on this accumulated knowledge.
The practical application of 3D printing research is especially valuable for companies and engineering teams in Morocco, where access to in-depth additive manufacturing expertise has historically been limited. SARMION bridges this gap — providing not only production services but the documented technical knowledge that helps local clients make better design and material decisions from the outset.
In Casablanca, Morocco's largest industrial and commercial hub, engineering firms, automotive suppliers, and consumer product companies benefit from research-backed material selection and process optimisation. Knowing that PETG outperforms PLA under mechanical load — and by precisely how much — changes the specification a design team submits before a single print is ordered.
Research institutions and government agencies in Rabat draw on additive manufacturing studies to inform procurement decisions and prototype specifications. Academic teams in Rabat use our material data to validate simulation models and support published research in applied engineering.
Architecture studios and hospitality design firms in Marrakech apply surface finish and resin resolution research when commissioning large-format scale models or interior detail prototypes. Knowing the minimum printable feature size and optimal layer height for presentation-quality output directly affects the brief they write and the budget they allocate.
Across all cities, SARMION's research data serves as a shared knowledge base that raises the quality of every project — from a startup in Casablanca building its first consumer product to an infrastructure firm in Rabat testing a custom connector component.
SARMION delivers professional 3D printing to every city in Morocco. Research-informed manufacturing, nationwide. Upload your file to receive a quote tailored to your application.
Each study below represents a controlled experiment conducted under real production conditions. Results are applied directly to how we advise clients on material and parameter selection for their orders.
Common questions about 3D printing materials research, strength tests, and how our findings apply to your project.
If you have a design ready, you can upload your file and receive a professional quotation for high-quality 3D printing in Morocco — with material recommendations grounded in the same research documented on this page. Our engineers review every file personally and apply the optimal parameters for your application before a single layer is printed.
No design yet? Send us a sketch or description and we will design, test, and produce your part. Learn about our product design service →