How it works

Realengineering.Realfeedback.

01

Pick a real challenge

600+ problems across CAD, calculations, DFM and FEA — each modeled on what top companies actually ask. No textbook filler.

Problem set

600+ company-style challenges

CADDFM

Hex lug nut

CAD · 8 steps

+7 min
2

Sheet-metal enclosure

DFM · 14 steps

Solve

Lofted turbine blade

Surfacing · 20 steps

Top-down gearbox layout

Assembly · 16 steps

+0.7 h

02

Solve it the way you'd work

Real workflows, not multiple choice — parametric sketching, assembly mates, drawings and tolerances. The clock runs, just like the interview.

enclosure.sldprtMedium
35:02
Engineering drawing — section, isometric and detail views of a bracket
Fully defined100%

03

Get instant AI feedback

FixtureAI reviews your work line by line and explains the why behind every note — then logs verified hours that prove your skill to recruiters.

FixtureAI Review

enclosure.sldprt

DFM7894
Manufacturability

Wall thickness is 0.8 mm — below the 1.2 mm minimum for ABS injection molding. Thin walls cause sink marks; increase it for a reliable fill.

Draft angles 2°+ on all faces
Rib thickness ≤ 60% of wall
Verified +0.6 hView full report

Try one now

Can you solve this?

A real challenge — pick a track, then take a swing at it.

CADEasy · ~7 min

Hex lug nut

Can you build this in 5 steps?

Sketch hexagonExtrudeCut through-holeChamferFillet

Drag to rotate

What you'll practice

Everythingyouneedtogethired.

Six focused modules covering every skill top companies test for. Tap one to see what you'll practice.

01

Mechanics

First Principles

Where every interview begins.

Practice First Principles

Frequently
asked questions

FixtureAI

A senior engineer,
reviewing every move.

Embedded in every problem, FixtureAI flags what textbooks skip — manufacturability, tolerances, design intent — and explains every fix so it sticks.

Real-time feedbackStep-by-step solutionsVoice mock interviews
Submitted my gearbox housing — how's the DFM?

Two things before this is production-ready:

The bolt bosses have no draft — add 1.5° so it ejects cleanly.

Uniform 3 mm walls — great for even cooling.

gearbox-housing.sldprt

DFM score · 78 → fix to 94

+0.5 h

Real engineering.
Real proof.

Not another video course. You solve real problems and get feedback that makes you hireable.

600+
company-style challenges

Modeled on what top companies actually ask — no textbook filler.

6
engineering modules

CAD, DFM, FEA, GD&T, fundamentals and calculations.

100%
of submissions reviewed

FixtureAI checks your work line by line, like a senior engineer.

Verified
build hours

Provable practice hours you can show a recruiter.

Practice forSolidWorksFusion 360OnshapePTC CreoCATIASiemens NXANSYSGD&T · ASME Y14.5

Choose your path.

One-time purchase. A full year of access. No subscriptions, no hidden fees.

Fundamentals

Strong engineering foundations.

$29$59

One-time · 1 year access

  • 2 modules included
  • 50+ practice problems
Get started

Plan highlights

  • Fundamentals & Calculations
  • AI-powered feedback
  • Step-by-step solutions

Design

Master CAD and design thinking with real challenges.

$29$59

One-time · 1 year access

  • CAD Challenges module
  • Real-world CAD challenges
Get started

Plan highlights

  • Surface modeling
  • AI-powered feedback
  • Step-by-step solutions

Manufacturing

Learn design for manufacturing the way industry does it.

$29$59

One-time · 1 year access

  • DFM Analysis module
  • Process optimization
Get started

Plan highlights

  • Real DFM challenges
  • AI-powered feedback
  • Cost-aware design

All Access

Best value

Everything you need to become hireable.

$79$149

One-time · 1 year access

  • All 6 modules
  • Interview Studio included
Get started

Plan highlights

  • Every module included
  • Priority support
  • All future updates free

Early bird pricing ends Jul 31, 2026 · Secure payments via Stripe

Start practicing.

Your next interview is closer
than you think.