Sell instead of retyping.
Fabricate instead of fixing files.

Less prep work, more focus.

three91 clears away the prep work — so your attention goes where the money is: your customers and your production.

Our products → How it works

A fabrication shop earns its money by getting customer orders through production fast — not by retyping, estimating and tidying up drawings. That prep work is what we take off your hands. So you can do what counts.

A great deal of time disappears long before the machine starts cutting — in the paperwork ahead of it: sifting through enquiries, opening drawings, retyping dimensions, guessing at prices, repairing old CAD files.

We solve that two ways: fully automatic where that works — and as a managed service where experience is needed. So your attention goes to your customers and your production, not to the prep work.

We clear away the prep work.

Two products, one promise: they take off your hands the work that keeps you from your core. One fully automatic, the other as a service.

Automated
01 · Sell instead of retyping

three91:quote

Enquiry in, quote out.
A request for quotation lands in your inbox — the material named in the message, the dimensions in a DXF, the quantities in a PDF. Until now that meant a choice: estimate fast and gamble your margin, or burn hours doing it by hand. three91:quote reads every source, brings it all together with AI, and prices the job in minutes — accurate to the cent.
  • Reads every source — material in the message text, dimensions in the DXF, quantities in the PDF
  • Takes the geometry straight from the CAD file — cutting length, area, thickness
  • AI groups the data that belongs together and shows it to you for checking
  • A quote in minutes — sent before your competition has opened the email
For estimating & sales Learn more →
Service
02 · Fabricate instead of fixing files

three91:shape

Old drawing in, modern file out.
Not every drawing can be processed automatically all the way. Shape is the supervised service for those: through about the simplest workflow imaginable, old and messy drawings become modern, production-ready files — for you or for your customers.
  • For everything automation cannot solve — old, messy or unusual drawings
  • A legacy drawing becomes a modern, machine-ready file
  • Dead simple workflow: upload → approve → receive the finished file
  • For your own use or as a service to your customers — viewer, approval & billing included
For you & your customers Learn more →
three91:quote

Scattered information. One quote.

three91:quote reads enquiries and their CAD attachments on its own, maps every position back to its sources and calculates a finished quote — exactly where scattered information slows other systems down.

MAILMaterialS355 · 8 mm — in the message text
DXFGeometryCutting length · area · thickness
PDFQuantity120 pieces — in the attachment
→
three91:quote
One complete quote
read · matched · merged · priced
01

Email arrives

The enquiry and its attachments land in the inbox.

02

Read out

Email, DXF, STEP, PDF — geometry, material and quantity are all recognised.

03

Merged

AI groups the data that belongs together and shows it for review.

04

Quote out

A priced PDF — checkable, traceable, ready to send.

What fabricators gain
Massive time savings

Hours of manual work become minutes — email in, quote out.

Focus on what matters

Time for sales and production, not for retyping and re-measuring.

Precise to the cent

Geometry straight from the drawing — traceable back to the source file.

Faster than the competition

Your quote is out before the competition has opened the email.

A look inside the software
three91:quote — from one enquiry to a calculated quote
01 / 03

From one enquiry: a finished quote

6 positions, 7 attachments (DXF + Excel) — read out, matched and priced to the cent. Ready to release as a PDF.

Where the quantity comes from — highlighted in the Excel list
02 / 03

Where does the quantity come from?

One click on a value reveals its source: quantity 20 pcs — highlighted in the Excel list, row “Zuschnitt 1”. Traceable, not a black box.

Where the cutting length comes from — measured from the DXF geometry
03 / 03

Where does the cutting length come from?

Same position, different source: cutting length 771 mm — measured straight from the DXF geometry. Every value verifiable back to the source file.

three91:shape

Old drawing in, modern file out.

Legacy

What no machine can read

Paper drawings, multi-part DXFs, broken geometry, unusual formats.

Service

Prepared for you

We separate, repair and convert them into production-ready data — through about the simplest workflow imaginable.

5

Formats in the viewer

DXF · DWG · PDF · STEP · 3D. Review, approve, bill — for you or for your customers.

No order waits on paperwork any more.

We are building towards steel fabrication in which every document is understood, priced and ready for production the moment it arrives. From document to part — automatically.

Named after an address. Built for an industry.

three91 stands for Freie-Vogel-Straße 391 in Dortmund — our home. The street name means free bird, which is where both our name and the swallow come from: fast, precise, unwavering.

That is exactly how software for manufacturing ought to feel. Not ponderous and generic, but quick, exact and thoroughly at home in the steel trade — built by people who understand drawings, cutting processes and production.

Let's talk about
your production.

Whether it is estimating with Quote or CAD preparation with Shape — show us your bottleneck and we will show you the path from document to part.

Arrange a call →