321mannLukas Heizmann

Consulting · Engineering · Process integration

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Consulting · Engineering · Process integration

Technical consulting for manufacturing and process integration

Engineering that works in practice.

I help mid-sized industrial companies assess existing processes, select suitable technology and put decisions into practice.

  • Assess technical suitability and cost-effectiveness
  • Develop components and select suitable manufacturing processes
  • Decide what to do in-house, what to outsource and how to implement it

In-house production, a partner solution, a targeted retrofit or keeping the existing process: deciding against a new purchase can also be the outcome.

Discuss your technical decisionProcess CheckExplore my work
Zwei Personen am Jeep-Messefahrzeug auf einer Fachmesse.
FORMNEXT 2025: my Jeep, printed only where printing makes sense. Also in the photo: Wolfgang Trollmann. View the Jeep project

Customer testimonial

3D-printed patterns: yes. An in-house printer: no.

  • Scanning and verification by me
  • Printing through partners
  • Casting at Hack Metallgießerei
View the project

Services

Three ways I can support you

  1. Assess technology

    Clarify requirements, suitability, effort and make-or-buy before investing.

    Learn more

  2. Develop components

    3D scanning, reverse engineering, design engineering and process selection for specific components.

    Learn more

  3. Support implementation

    Interfaces, technology introduction, existing machines and knowledge transfer.

    Learn more
All services and the Process Check

Explore my work

Real components, my own machines, documented workflows.

All projects

How I work

My approach

  1. Assess

  2. Check the component

    • Actual component
    • Feasibility
    • Practical test

  3. Implement

    • System selection
    • Integration
    • Acceptance

  4. Transfer knowledge

    • Training
    • Independent operation

What stays in-house, and what goes to partners?

  • Frequency of use
  • Response time
  • Team and expertise
  • Investment
  • Operating costs
  • Data ownership
  • Quality
  • Process stability
  • Available partners
  • Scaling

  • In-house

    • Scanning, printing or both

  • Shared

    • Data capture in-house, manufacturing outsourced
    • Hybrid combination

  • External

    • Scanning and/or printing through partners

  • No new purchase

    • Keep conventional processes or postpone investment
3D printing: in-house or outsourced?
Lukas Heizmann an der modernisierten Tischbohrmaschine
Lukas Heizmann at the modernised bench drill. View the bench drill project

Lukas Heizmann

Why I can assess both approaches

Calculated values are the starting point. The machine shows whether they hold up.

  • I check the actual component before making a recommendation
  • No blanket yes or no without a reason
  • System integrator: combining my own measurements, existing technology and specialist partners into a working process chain
  1. 2012 to 2014Apprenticeship in precision mechanics
  2. 2015 to 2017Precision equipment for research
  3. 2017 to 2020Prototype and fixture construction for airbag development
  4. 2020 to 2022Further education as a mechanical engineering technician
  5. 2023 to 2025Aviation: tool engineering and introduction of a 3D printing system
  6. Since September 2023Self-employed with 321mann
About me

Insights and collaboration

Lukas Heizmann with Dave Cole.
Ultra4Next in development

KOH and Ultra4Next

  • 3D printers set up on site
  • Shown the team what they can use them for
  • Training content adapted to workflows and existing knowledge

“This has put us one or two years ahead of where we could ever have got on our own.”

Dave Cole, co-founderTranslation
View project and video
PodcastAn insight into my network: a guest of Bastian Gaedike on the podcast ‘PEEKfeine Bauteile. Der 3D-Druck Industrie-Podcast’.Upcoming talk21.10.2026 · Nürburgring. SHINING 3D Nürburgring Experience Day, ‘Beyond the Tool’ talk.

Getting started

On-site Process Check at a fixed price

You may need a scanner, a printer, both or neither.

  • What do you need the component for, and how often?
  • Who manages the process in your company?
  • Is the technology cost-effective once familiarisation and training are included?

Compact

  • ½ day on site
  • ½ day evaluation
  • Short report with a recommendation
  • Review of data flow

Results include a make-or-buy recommendation.

Standard

  • 1 day on site
  • 1 day evaluation
  • Trial scan and measurement of 1 component
  • Report and results meeting
  • Review of data flow

Results include a make-or-buy recommendation.

Beforehand, we clarify the task, an example component, available data and the decision you need. The outcome is a recommendation with assumptions and required actions. Exact services and price are set out in the offer.

The trial scan serves to assess the agreed example component. Further measurement evidence and approvals are agreed separately.

Request a Process Check

One personal point of contact, backed by a specialist network.

Handled by me

Analysis, process understanding, measurement, validation, specification, system decisions, implementation, acceptance and client coordination.

Specialists I involve for each project

Reverse engineering, additive manufacturing, CNC, sheet metal, casting, software, automation and other specialist processes.

View partners

Commitments

  • Need-to-know basis, with an NDA before exchanging confidential documents
  • I involve partners only with your consent
  • After full payment, the project-specific results belong to you

Contact

Describe your technical project.

I will get back to you within two working days.

Decision / Process CheckComponent / Scan / CADCall

Lukas Heizmann · Saulheim. You will receive the terms and conditions with the quotation.

Three useful details:

  1. Company / task
  2. Objective
  3. Timeframe

If data is needed, we agree a suitable transfer method. You do not need to attach confidential files to the first enquiry.