About AMT · Since 2017

The originals of vapor smoothing.

Born from University of Sheffield research1. AMT took it from the lab to 900+2 PostPro systems in 40 countries, and built the patents, the machines and the team behind them.

Meet the team See the patents
Founded in Sheffield
2017
Sites in the UK, US and Hungary
3
Countries with PostPro systems
402
Patents granted or pending, as stated by AMT
50+2
Patent families on the public record
20

Where it started

From a Sheffield lab to production floors.

AMT started in Sheffield in 2017 to take University of Sheffield research into industry. The team engineered the machines that automate vapor smoothing, patented the process, and has refined it on customers’ production floors ever since.

AMT engineers with a machine frame during assembly
PHOTOThe AMT team at work. As published on AMT’s About page.

  1. AMT is founded

    Born from University of Sheffield research1, founded in Sheffield.

  2. The core patent is filed

    Controlled vapor smoothing of polymer parts, since granted in the UK, Europe, the US and China.

    Patent family 01

  3. formnext Start-up Challenge

    One of five winners, for the automated PostPro3D.

    AdditiveManufacturing.com (opens in a new tab)

  4. PostPro3D ships

    The first automated vapor smoothing system for powder-bed 3D printed parts3 becomes commercially available.

    TCT Magazine (opens in a new tab)

  5. The first grant

    UK patent GB2560073B for controlled vapor smoothing is granted.

    Google Patents (opens in a new tab)

  6. PostPro SF50 and SF100

    The production range launches at Formnext: one machine, two chamber sizes.

    TCT Magazine (opens in a new tab)

  7. PostPro Pure

    AMT’s own finishing agent launches, now used across the range.

    VoxelMatters (opens in a new tab)

  8. PostPro SFX wins

    The desktop SFX takes the TCT Post-Processing Award.

    TCT Magazine (opens in a new tab)

  9. PostPro SF2X

    Launched at Formnext 2025, with double the SFX chamber capacity.4,5

  10. Today

    900+2 systems

    PostPro systems installed in 40 countries, across all of AMT’s product lines.

A decade of process data

Powered by a decade of processing parts and more than 10 million process data points, AMT has developed its own proprietary algorithms and post-trained models that power our fleet of SF machines.6

See the software

What’s next

SF Gen 3 Coming soon

The next chapter of vapor smoothing. Be first to see it

Core team

The team behind PostPro vapor smoothing.

Scientists, engineers and the people who bring PostPro to production floors in 40 countries. Two of them are named inventors on the patent that started it.

Named inventors on the team
2
Patent families they are named on
17 of 20
Sites
3 UK · US · Hungary
Countries with PostPro systems
402
  • Portrait of Joseph Crabtree

    Joseph Crabtree

    CEO & Founder

    Founded AMT after a decade in aerospace, defense and off-highway manufacturing. MEng in Materials Science and Engineering, University of Sheffield.

    • Named inventor · 17 patent families
    • MEng, University of Sheffield
    • Founder
    Full bio of Joseph Crabtree

    With an MEng in Materials Science and Engineering from the University of Sheffield and studies at Tampere University of Technology in Finland, Joe spent a decade in private equity-backed (Carlyle Group, Oak Hill Capital) aerospace, defense, and off-highway industries, focusing on both metallics and composites manufacturing. Starting in engineering roles, he progressed into operations management and Six Sigma process improvement, working across the UK, USA, Mexico, and Hungary. Before founding AMT, he led strategic growth as Head of Sales and Marketing at an aerospace SME.

    As published on AMT’s About page.

  • Portrait of Stephanie Lawson

    Stephanie Lawson

    Vice President of Finance

    Leads AMT’s finance: financial performance, margins and sustainable growth. Joined AMT in 2023.

    • With AMT since 2023
    • Technical accounting
    Full bio of Stephanie Lawson

    Steph joined AMT in 2023, bringing extensive experience in technical accounting, financial leadership, and business strategy. She plays a key role in driving AMT’s financial performance, optimizing margins, and ensuring sustainable growth.

    As published on AMT’s About page.

  • Elod Estok

    Vice President of Manufacturing Operations

    Runs manufacturing operations, with over a decade of company management and expertise in electrical and mechanical engineering.

    • Electrical & mechanical engineering
    • 10+ years in company management
    Full bio of Elod Estok

    With over a decade of experience in company management across various industrial sectors, Elod brings expertise in both electrical and mechanical engineering. Passionate about continuous development and innovation, he believes success comes from strategic planning, persistence, and lifelong learning.

    As published on AMT’s About page.

  • Portrait of Giorgio Ioannides

    Giorgio Ioannides

    Head of Sales

    With AMT PostPro from the start. A chemist by training, he now leads the sales team.

    • Named inventor · 1 patent family
    • Master’s in Chemistry
    • With AMT from the start
    Full bio of Giorgio Ioannides

    With a Master’s in Chemistry and expertise in 3D printing, Giorgio has been with AMT PostPro from the start. As he grew with the company, he now leads the sales team combining his technical knowledge with commercial strategy to drive business growth.

    As published on AMT’s About page.

  • Portrait of Dr. Konstantin Rybalcenko

    Dr. Konstantin Rybalcenko

    Chief Scientist

    Chief Scientist since the early days: developing the technology, navigating regulations, securing patents.

    • Named inventor · 17 patent families
    • PhD
    • With AMT from the early days
    Full bio of Dr. Konstantin Rybalcenko

    Drawn to AMT’s vision, Konstantin embraced the challenge of building something new right from the early days of the company. He played a key role in developing technology, navigating regulations, and refining customer communication. His contributions helped AMT become an industry leader, securing patents, winning grants, and driving innovation in additive manufacturing. As the company grows, he continues to push boundaries and shape its future.

    As published on AMT’s About page.

  • Portrait of Sam Martin

    Sam Martin

    Channel Sales Manager (EMEA)

    Drives AMT’s post-processing solutions across the industry, with over eight years in engineering leadership and product development.

    • 8+ years in engineering leadership
    Full bio of Sam Martin

    Leading the Global Application Team, Sam drives AMT’s vision for post-processing solutions across the additive manufacturing industry. With over eight years of experience in engineering leadership, process improvement, and product development, he is committed to optimizing high-volume production, efficiency, and scalability to meet evolving industry demands.

    As published on AMT’s About page.

  • Portrait of Michal Kupis

    Michal Kupis

    Business Development Manager (EMEA)

    Drives AMT’s growth across Europe: industrial machine sales and reseller management.

    • Europe
    • Multilingual
    Full bio of Michal Kupis

    Michal is responsible for driving AMT’s growth across Europe, focusing on industrial machine sales, reseller management, and the implementation of internal automation and AI systems. Multilingual and adaptable, he thrives in international, cross-cultural environments.

    As published on AMT’s About page.

  • Portrait of Brad Duermit

    Brad Duermit

    AMER Director

    Leads AMT in the Americas from Austin, Texas, with year-over-year growth for the region.

    • Austin, Texas
    • Americas
    Full bio of Brad Duermit

    Based in Austin, Texas, Brad has successfully spearheaded a multitude of high-impact sales efforts, driving year-over-year growth for the region. His innovative approach to customer relationship management and strategic partnerships has not only increased revenue but has also elevated the brand’s position in the market, making AMT a recognized leader in all of North America.

    As published on AMT’s About page.

  • Mehdi Salahshour

    Research & Development

Bios as published on AMT’s About page, January 2026. Portraits are AMT’s own photos.

Named inventors

The names on the patents.

Joseph Crabtree and Dr. Konstantin Rybalcenko are named inventors on AMT’s first vapor smoothing patent, filed in January 2017, and on 17 of AMT’s 20 patent families since, with colleagues across AMT’s engineering team.

See every patent family

Where we are

Three sites. 40 countries.

AMT has sites in the UK, the US and Hungary, and works with resellers and production partners to support 900+2 PostPro systems installed in 40 countries.

  • United Kingdom

    Sheffield

    Additive Manufacturing Technologies (AMT) Ltd

  • United States

    Round Rock, Texas

    Additive Manufacturing Technologies (AMT), Inc.

  • Hungary

    Veszprém

    Additive Manufacturing Technologies (AMT) Kft

Addresses and opening hoursFind a partner near you

Recognition

Recognized from the first machine on.

Industry awards for PostPro3D, the desktop SFX and AMT itself, plus competitive R&D grants from Innovate UK and EU funding.

All awards and grantsNews and press

  1. Finalist · Highly commended

    TCT Awards 2025

    TCT Post-Processing Award · Entry: PostPro SFX for polypropylene

    TCT GroupTCT Magazine (opens in a new tab) · AMT news post

  2. Winner

    TCT Awards 2024

    TCT Post-Processing Award · Entry: PostPro SFX desktop vapor smoothing with PostPro Pure

    TCT GroupTCT Magazine (opens in a new tab)

  3. Winner

    3D Printing Industry Awards 2018

    Start-up of the Year

    3D Printing Industry3D Printing Industry (opens in a new tab)

  4. Winner

    formnext Start-up Challenge 2017

    One of five winners, for the automated PostPro3D

    formnext (Mesago Messe Frankfurt)AdditiveManufacturing.com (opens in a new tab)

Work with the originals

Send us a part. We’ll send it back vapor smoothed.

Our technicians vapor smooth your parts on the right PostPro system for the job, then send them back with before-and-after photos and a benchmark report.

No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks7

Test your parts, free Get a price