GoetheLab FH Aachen: SLS 3D Printing University Research Case Study

GoetheLab at FH Aachen runs the teaching and research area for High-Performance Manufacturing Technology and Additive Manufacturing at Aachen University of Applied Sciences. The lab has been working in additive manufacturing since 2000. Existing kit covers laser powder bed fusion (LPBF), stereolithography (SLA) and fused-layer modelling (FLM). SLS was the missing process.

The team added selective laser sintering by buying a Sinterit Lisa PRO. Sinterit reports the benchtop machine now supports both teaching and active research. This is what SLS 3D printing university research looks like when budget and lab footprint matter. The case study is also a working example of how a benchtop SLS 3D printer enters a university additive manufacturing portfolio without displacing the industrial gear next to it.

Why GoetheLab needed a benchtop SLS 3D printer for university research

Industrial SLS systems are big, capital-heavy and over-specified for an education-focused lab. GoetheLab already taught LPBF, SLA and FLM. Adding an industrial SLS machine would have consumed floorspace and budget without lifting the teaching mission.

A benchtop SLS 3D printer solved both constraints. Lower acquisition cost, smaller footprint, simpler to demonstrate to students, and a closed system safe for undergraduates running first SLS builds. The Sinterit Lisa PRO became the candidate the team evaluated against industrial benchmarks.

How GoetheLab evaluated the Sinterit Lisa PRO for university research

Marco Skupin ran the evaluation as a master's thesis. Skupin compared the Lisa PRO with an industrial SLS system on four axes:

• Geometric accuracy: the Lisa PRO achieved comparable results, ± 0.3 mm.

• Mechanical properties: measured against industrial baselines.

• Surface quality: benchtop finishes tested against industrial samples.

• Economy: cost-effectiveness for low-volume runs.

One design caveat surfaced for the benchtop platform: a stronger "curling effect" at the lower scan speeds, so SLS design rules need extra care on the Lisa PRO. Otherwise, the benchtop hardware kept up with the industrial systems on the metrics relevant for SLS 3D printing university research and teaching.

Results: SLS 3D printing university research without the industrial price tag

GoetheLab's procurement decision turned on cost-effectiveness for small batch volumes, which is exactly what an SLS research lab needs. Industrial systems amortise across high-volume production; a university lab does not. The Lisa PRO's lower acquisition cost made low-volume part runs economically viable.

Plug-and-play workflow also lowered the teaching barrier. Students at the lab now develop an app for interacting with the Lisa PRO as an independent project. Goethelab's roadmap is to have students teach themselves the SLS process through digital learning content paired with the machine. The setup is a working template for SLS 3D printing university research at other higher-ed sites.

Beyond teaching, the lab is also using the Lisa PRO for active research. The current focus is investigating laser polish-ability of SLS-printed parts, with the goal of a flexible, automated post-processing pipeline for surface improvement.

What this means for Australian universities and TAFEs

Australian engineering schools, TAFEs and research labs face the same procurement maths GoetheLab did. Industrial SLS is over-specified for a teaching mission. Benchtop SLS 3D printers open up the same process at a fraction of the capital cost, with a smaller install footprint and simpler operator training. This is the path SLS 3D printing university research now takes in most engineering departments.

Australian 3D Printers is an authorised Sinterit reseller. We deliver the Sinterit Lisa X (the current flagship, which replaces the Lisa PRO in GoetheLab's story) and the Sinterit Suzy to engineering departments, fabrication labs and HDR research groups across the country. Sinterit's PA-12 Industrial powder covers most university SLS workflows. For sister case studies, see the Aalto University 3D printing lab case study and the Sinterit Lisa X launch overview. The Sinterit Suzy launch covers the new entry tier.

Sinterit SLS 3D printing university research FAQ

What is benchtop SLS 3D printing for university research?
Benchtop SLS 3D printing for university research uses a compact diode-laser SLS machine in place of a full industrial system. The Sinterit Lisa PRO at GoetheLab is one early example of SLS 3D printing university research on benchtop hardware. Australian university labs now choose the Sinterit Lisa X for the same role.

Is benchtop SLS 3D printing accurate enough for university research?
Yes. The GoetheLab master's thesis measured the Sinterit Lisa PRO at ± 0.3 mm geometric accuracy, comparable to industrial SLS systems. Design rules for SLS still apply, especially around curling at lower scan speeds. For SLS 3D printing university research, the benchtop platform delivers production-grade metrics at education-grade cost.

Which Sinterit printer suits university SLS research today?
For most Australian university research labs, the Sinterit Lisa X is the recommended starting point. The Sinterit Suzy is the entry tier for labs running a single-material PA-12 workflow at a lower entry price.

How does benchtop SLS compare with industrial SLS for university labs?
Benchtop SLS 3D printers deliver comparable geometric accuracy at a fraction of the capital cost. Industrial systems still win at high-volume production. For teaching and SLS 3D printing university research, the benchtop economics are stronger. SLS in higher education has shifted toward compact, departmental machines for this reason.

How much does a Sinterit SLS printer cost for Australian universities?
Sinterit Suzy starts at €17,590 SRP at launch. Sinterit Lisa X pricing for Australian universities depends on the printer set, accessories and freight. Request a tailored quote from Australian 3D Printers for current AUD pricing on SLS 3D printing university research deployments.

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