I built a free MES for 3D print farms — here's what I learned managing 50 printers with spreadsheets
Hey r/3Dprinting,
I've been running a print farm for the past few years, and I kept hitting the same wall: spreadsheets don't scale.
Here's what broke for us:
**The chaos that compounds past 10 printers:**
- Print requests came in via email. We'd lose track of who ordered what and when.
- Filament stock was a Google Sheet or Excel file that nobody updated until we ran out mid-print.
- Scheduling was on a whiteboard. Double-booked machines happened weekly.
- Quality control? Screenshots in a Slack channel. Zero traceability.
- OEE? We didn't even measure it because we couldn't.
So I built **Pryysm**—an Additive Manufacturing Execution System (MES) designed specifically for 3D print farms.
**What it does:**
- Structured print request intake with material picker, tech selection, department routing
- Real-time fleet monitoring and OEE calculation
- Production scheduling: day/week/month views, job splitting, capacity-aware allocation
- Material inventory: track filaments/resins/powders, reorder alerts, lot traceability
- QC workflows: pass/fail inspections, NCR records with root cause tracking
- AI copilot: ask it plain English questions about your operation
Supports FDM, SLA, and SLS. Multi-tenant (proper PostgreSQL RLS, not just separate logins).
**We're opening the waitlist today.** Free tier is coming soon — no credit card required.
I'd genuinely love brutal feedback from this community. What's missing? What would make this actually useful for your operation? What have I got wrong?
Link in bio / comments.