CollabForge

Team CAD for engineering students—collaborate on 3D prototypes in real-time.

Score: 7.0/10SingaporeHard BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Manufacturing course students can't find affordable, user-friendly CAD software that seamlessly integrates with 3D printing for prototypes due to high costs and steep learning curves.

Solution

CollabForge enables student teams to co-edit CAD models live, with version history and comments. Integrates chat for feedback and one-click STL export for group prototypes. Perfect for group assignments in manufacturing courses.

Target Audience

Students enrolled in manufacturing or engineering courses needing CAD for 3D printing prototypes

Differentiator

Real-time multiplayer editing with role-based permissions for teams.

Brand Voice

professional

Features

Multiplayer Canvas

must-have40h

Live cursors and edits via Yjs.

Team Projects

must-have18h

Invite teammates, assign roles.

Version History

must-have25h

Time-travel undo/branching.

In-app Comments

must-have20h

Pin feedback on model parts.

Basic CAD Tools

must-have30h

Shapes, extrude, booleans.

3D Viewer Sync

must-have28h

Shared viewport.

Group STL Export

must-have15h

Export with approval workflow.

Presence Indicators

nice-to-have10h

Who's online/editing.

Video Chat Embed

nice-to-have18h

Daily.co integration.

Export Animations

nice-to-have12h

Turntable GIFs for presentations.

Total Build Time: 216 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo

teams

ColumnTypeNullable
iduuidNo
nametextNo
creator_iduuidNo

Relationships:

  • creator_id -> users.id

projects

ColumnTypeNullable
iduuidNo
team_iduuidNo
model_jsonjsonbNo
versionsjsonbYes

Relationships:

  • team_id -> teams.id

team_members

ColumnTypeNullable
user_iduuidNo
team_iduuidNo
roletextNo

Relationships:

  • user_id -> users.id
  • team_id -> teams.id

API Endpoints

POST
/api/teams

Create team

🔒 Auth Required
POST
/api/projects/:id/sync

Realtime model updates via websocket proxy

🔒 Auth Required
POST
/api/comments

Add comment to project

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui + Three.js + Yjs + Liveblocks
Backend
Next.js API routes
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Supabase RealtimeLiveblocks for collab

Build Timeline

Week 1: Auth & teams

40h
  • Teams UI
  • Invites

Week 2: Realtime collab

55h
  • Yjs integration
  • Live cursors

Week 3: CAD + sync

60h
  • CAD tools synced
  • Viewer sync

Week 4: Versions & comments

50h
  • History
  • Comments

Week 5: Export & payments

40h
  • Group export
  • Stripe

Week 6: Testing

30h
  • Multi-user tests
  • Launch

Week 7: Polish

25h
  • Nice-to-haves partial
Total Timeline: 7 weeks • 400 hours

Pricing Tiers

Free

$0/mo

2 members/team

  • Solo projects
  • Basic collab

Pro

$37/mo

5 members

  • Unlimited teams
  • Versions
  • Comments

Enterprise

$97/mo

None

  • All Pro
  • Unlimited members
  • Admin dashboard

Revenue Projections

MonthUsersConversionMRRARR
Month 1804%$118$1,416
Month 67007%$1,819$21,828

Unit Economics

$18
CAC
$666
LTV
6%
Churn
91%
Margin
LTV:CAC Ratio: 37.0xExcellent!

Landing Page Copy

Real-Time Team CAD for Student Prototypes

Collaborate live on 3D models for group assignments.

Feature Highlights

Live multiplayer editing
Version history
Team comments
Shared exports

Social Proof (Placeholders)

"'Group projects now easy!' - Team Lead"

First Three Customers

Post in university engineering Discords with team demo. Offer free Enterprise to student orgs. LinkedIn outreach to capstone project advisors.

Launch Channels

ProductHuntr/MechanicalEngineeringHackerNewsUniversity forums

SEO Keywords

collaborative CAD studentsteam 3D modeling engineeringgroup CAD for manufacturing prototypesrealtime CAD online free

Competitive Analysis

Free edu
Strength

Pro collab

Weakness

Overkill for students

Our Advantage

Simplified for courses

🏰 Moat Strategy

Network effects from student team lock-in

⏰ Why Now?

Rise of hybrid group work in engineering post-pandemic.

Risks & Mitigation

technicalhigh severity

Realtime sync conflicts

Mitigation

Use proven Liveblocks/Yjs

Validation Roadmap

pre-build10 days

Interviews with student teams

Success: Pain confirmed

Pivot Options

  • Solo version
  • Tutor feedback tool
  • Portfolio exporter

Quick Stats

Build Time
400h
Target MRR (6 mo)
$1,800
Market Size
$600.0M
Features
10
Database Tables
4
API Endpoints
3