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On Lounge since Oct 2026

Joseph Crabtree

Paid@thejoecrabtreeMember #804FounderL2
Founder and CEO, Additive Manufacturing Technologies (AMT)
Founder-engineer. Built AMT (industrial 3D printing, 50+ patents). Now running LLM agents on real hardware, evals and fine-tuning on my own
Austin, TX, USA Additive Manufacturing Technologies (AMT)GitHubHugging FaceXLinkedIn
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Achievements · 2 of 19

Plugged In ×4Connected sources: GitHub, Hugging Face, LinkedIn, X, website.How: Connected 4 sources (GitHub, LinkedIn, X or a website) in SettingsEarned Oct 18, 2026
Plugged In×4Featured
ShipperProjects on your profile.How: Added 1 project to their profileEarned Oct 18, 2026
Shipper
OverviewProjects · 4Posts · 0

Pinned projects

All 4 projects
agent-failure-log
Repo · 0 stars
▲ 0
Field log of control failures from LLM agents running a small physical business, and the guardrails that held
ai-agentsai-controlai-safetyllm
llm-eval-gate
Repo · 0 stars · Python
▲ 0
Golden-set eval gate for LLM model promotion, plus lm-eval-harness lessons for reasoning models
evalsllmlm-evaluation-harnessmlopsvllm
thejoecrabtree
Repo · 0 stars
▲ 0
Profile README
nemotron-moe-lora-checkpoint-fix
Repo · 0 stars · Python
▲ 0
NemotronH MoE LoRA in NeMo Automodel: routed-expert weights silently not loaded. Root cause, fix script, tests.
fsdploramixture-of-expertsnemonemotron

Stack

HermesQwenOllamaClaudeLlamaGeminiGrokBrowserbaseChatGPTCursorVercelGemini CLIClaude CodeGoogle AI StudioCodexGitHub CopilotMuseElevenLabsGemmaSupabase
20 tools

About

Founder-engineer. Built AMT (industrial 3D printing, 50+ patents). Now running LLM agents on real hardware, evals and fine-tuning on my own GPU lab.

Raises & exits

Member Raises
Capital raised
Additive Manufacturing Technologies (AMT) · Industrial 3D printing
$25M
Series B · Oct 2021 · $15M round · 6 rounds
AMT raised $25M over 6 rounds (seed, early-stage and grants), most recently a $15M Series B in October 2021 with Saint-Gobain Surface Solutions and 15th Rock Ventures joining Foresight Group, DSM Venturing and Mercia.
Source 1: tctmagazine.com ↗Source 2: tracxn.com ↗

Experience

Founder & CEO, AMT PostPro | Building AI into industrial production, from post-processing to the back office | 50+ patents | Investor, hardtech & industrial AI
Additive Manufacturing Technologies logo
Founder, Ceo, Board Member & Investor · Additive Manufacturing Technologies
Jan 2016 – PresentCurrent
Additive Manufacturing Technologies logo
Founder, CEO, Board Member & Investor · Additive Manufacturing Technologies
Jan 2016 – PresentCurrent
Christchurch Chamber of Trade & Commerce logo
Vice President & Board Member · Christchurch Chamber of Trade & Commerce
Apr 2013 – Aug 2015
Bcp Council logo
Vice President & Board Member · Bcp Council
Apr 2013 – Aug 2015
Beagle Aircraft logo
Head of Sales · Beagle Aircraft
Mar 2011 – Dec 2015
FR
Site Operations Manager · Firth Rixson (Acquired by Alcoa on November 20 2014)
Jan 2010 – Mar 2011
Caterpillar Inc. logo
Off-Highway Product Supply Manager (Secondment) · Caterpillar Inc.
Oct 2009 – Jan 2010
FR
Senior Process Manager · Firth Rixson (Acquired by Alcoa on November 20 2014)
Oct 2008 – Sep 2009
Imported from LinkedIn.

GitHub activity

5,260 contributions in the last year · @thejoecrabtree ↗
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