Hardware startups
Turn a napkin idea into a spec and concept render the whole founding team can align on.
Engineering documentation studio
Turn a rough engineering idea into specs, diagrams, and explainers your whole team can read.
Describe a part or system in plain words. Denforge drafts a structured concept spec, renders concept diagrams, and storyboards a how-it-works explainer — then exports an Engineering Brief.
concept spec draft· 6 concept diagram types· explainer storyboard· brief export
idea → spec → diagram → explainer
Live studio
Draft it now — no sign-up to try
Free Sketch tier runs the drafting engine end to end. Upgrade for full diagram sets, explainer video, and unlimited drafts.
Step 01 · Describe
Denforge outputs are concept-level drafts and creative aids — not stamped engineering drawings, not manufacturing or construction drawings, and not a structural, electrical, or safety sign-off. Any manufacturing, construction, load-bearing, pressure, electrical, or safety-critical use must first be reviewed and signed off by a licensed engineer. AI-generated dimensions, materials, tolerances, and standards references may be wrong or out of date; verify against current standards and measured data.
How it works
One chain from a plain-English idea to a reviewable brief.
- 01Describe the idea in chat
Say what you're building, its duty (load, environment, medium, temperature), your constraints, and who will read it.
- 02Get a structured spec draft
Material candidates, key dimensions, tolerances, bill of materials and fastener callouts — every value marked for verification.
- 03Render concept diagrams
Concept render, exploded view, dimensioned sketch, process, comparison and wiring block — all badged concept only.
- 04Explainer + Engineering Brief
Storyboard a how-it-works explainer and export a full brief with the licensed-review notice built in.
Concept diagram library
Six concept output types, on every draft.
01
Mechanical part study
Isometric part concept with flanges and fixing points.
02
Exploded assembly
Numbered parts mapped to the bill of materials.
03
Process / block diagram
System flow and instrumentation at concept level.
04
Piping / flow concept
Pumps, valves and lines with directional flow.
05
Comparison spec board
Option A / B parameters for a selection decision.
06
Wiring / signal block
Controller, sensor and actuator signal concept.
Who uses it
Built for people who have to explain hardware.
Independent engineers & makers
Draft a clean brief and dimensioned concept sketch before you cut metal or order parts.
Pricing
Simple subscription. No credits, no stored balance.
Sketch
Try the drafting engine at no cost.
$0free
2 drafts / month
- ›Chat spec drafting
- ›1 concept diagram per draft
- ›Watermarked concept outputs
Most popular
Studio
For independent engineers and students shipping real specs.
$23/mo
20 drafts / month
- ›Full structured spec drafting
- ›All six concept diagram types
- ›Engineering Brief PDF export
Firm
For small teams that put out proposals every week.
$58/mo
Unlimited drafts
- ›Everything in Studio
- ›How-it-works explainer video
- ›Assembly walkthrough animation
- ›Branded Brief (your logo and title block)
- ›Priority visual rendering
Pure subscription, USD only. Monthly draft allowance resets each period and does not roll over. No credits, no stored balance. Cancel anytime; access continues to the end of the paid period.
Concept-level by design
Outputs are drafts and creative aids — not stamped drawings, manufacturing drawings, or a structural, electrical or safety sign-off.
Licensed review required
Any manufacturing, construction, pressure, load-bearing, electrical or safety-critical use must be reviewed and signed off by a licensed engineer.
Your data, handled clearly
Uploads and generated results are processed to run the tool and cleared on a defined retention window. We do not train models on your data.
For teams
Bring the whole engineering team onto one drafting workflow.
Tell us your discipline and what you document most. A specialist maps Denforge to your review process — from first spec to branded Engineering Brief.
support@denluk.shop
+44 7818044298