How to Use FreeCAD: The Beginner's Guide (First Sketch, First Pad, Constraints, and a Printable Part)
CodexFuse Team · 2026-10-30T05:16:33.209Z · 9 min read min read
Learn how to use FreeCAD in 2026: install it, draw a Part Design sketch, lock every constraint, Pad it into a solid, and export a printable part.
How to Use FreeCAD: The Beginner's Guide (First Sketch, First Pad, Constraints, and a Printable Part)
If you have ever wanted to learn how to use FreeCAD — the free, open-source 3D CAD program — but bounced off its workbench maze and constraint-colored sketches, this guide is the missing on-ramp. You will install it, pick the one workbench beginners actually need, draw your first fully constrained sketch, turn it into a solid with Pad, cut holes with Pocket, and export something you can 3D print. FreeCAD is a parametric modeler, not a mesh sculptor: it builds real-dimension parts the way engineers do. That is exactly why it pairs with, rather than replaces, mesh tools — if you come from sculpting characters or game props, start with our Blender beginner guide and come back when you need parts with exact dimensions.
Is FreeCAD really free — and which version should you install in 2026?
Yes. FreeCAD is free and open-source software released under the LGPL-2.1-or-later license, so you can use it for hobby projects and commercial work without paying anything or activating a license (source: Wikipedia, FreeCAD, checked October 2026). It has been in development since October 2002 and hit version 1.0 in November 2024, which fixed the notorious topological-naming problem and added a built-in Assembly workbench.
As of October 2026, the current stable release is FreeCAD 1.1.4 (published September 28–29, 2026; version 1.1 itself launched March 24, 2026), and 1.1.4 is the last planned maintenance release in the 1.1.x series, including two security fixes for vulnerabilities in how crafted FCStd files are handled (sources: FreeCAD download documentation; NetBSD pkgsrc update notice). The next major release is already being developed under the version name 26.3 (source: FreeCAD development blog, October 28, 2026).
Get it only from freecad.org or the FreeCAD/FreeCAD releases page on GitHub — official builds exist for 64-bit Windows, macOS, and Linux, and the Windows and macOS builds are signed by the FreeCAD project association (source: ICON, FreeCAD 1.1 Review (2026)). The download is roughly 700 MB. Install, launch, and keep this guide open.
What is the fastest way to make your first part in FreeCAD?
The whole beginner workflow is seven steps, and every FreeCAD tutorial on the internet agrees on them — this guide just does them in one place, in order, with nothing skipped:
- Switch to the Part Design workbench from the workbench dropdown at the top. Beginners live here; everything else can wait.
- Create a Body. In the Tasks panel, click Create body. A Part Design part is always built inside a single Body.
- Create a sketch on a base plane. Click Create sketch, pick the XY plane, and press OK. You are now looking at a 2D drawing canvas.
- Draw your shape with the polyline, rectangle, and circle tools — roughly, not precisely. Rough is correct at this stage.
- Lock every dimension with constraints until the sketch turns green and the Combo View reports it fully constrained. This is the step beginners skip, and skipping it is why their models fall apart later.
- Pad the sketch into a solid — select the Pad tool, set the extrusion length, and click OK. Your 2D drawing is now a 3D part.
- Cut features with Pocket — select a face, sketch the hole shape on it, and use Pocket to remove material through it.
That sequence — workbench, Body, sketch, constraints, Pad, Pocket — is the complete FreeCAD mental model. Everything else in the program is a variation on it.
Which workbench should a beginner start with?
Part Design, always. FreeCAD divides its features into segments called workbenches, each with its own toolbar, and only one workbench is active at a time (source: Artisans Asylum FreeCAD UI tutorial). For a beginner making real parts, the choice is not close:
| Workbench | What it does | Start here? |
|---|---|---|
| Part Design | Parametric solid modeling: sketches, pads, pockets, fillets | Yes — this guide |
| Sketcher | The 2D drawing canvas Part Design uses (it opens automatically) | Inside Part Design |
| Part | Primitive solids and boolean operations | Later |
| TechDraw | 2D engineering drawings from your 3D parts | After your first part |
| Mesh | Mesh inspection and repair before 3D printing | At export time |
| Assembly | Joining multiple parts (built-in since 1.0) | Much later |
The classic beginner mistake is trying to model in the Part workbench with primitives first. Part Design's sketch-then-feature approach is the one that teaches you how the program actually thinks.
How do you create a Body and your first sketch?
Launch FreeCAD, go to File → New, and choose a parametric part. Switch the workbench dropdown to Part Design. In the Tasks panel on the left, click Create body — a Body appears in the model tree — then click Create sketch.
FreeCAD asks which plane to draw on. For a first part, choose the XY plane (the top-down view) and click OK. The 3D view flattens into your sketching canvas, and the left panel switches from the model tree to the sketch tools.
A note on navigation, because it trips up every newcomer: pan with the middle-mouse-button drag, rotate with Shift + right-mouse drag, and zoom with Ctrl + minus/plus or the scroll wheel (source: Land of Kain, FreeCAD tutorial). Learn those three gestures now; you will use them a thousand times a session.
Draw a rectangle with the rectangle tool. Do not try to be precise — click roughly where you want the corners. Your sketch is currently white (unconstrained), which brings us to the most important concept in the entire program.
What are constraints, and why does the sketch turn green?
A sketch is only a drawing until constraints lock it down. Constraints are rules you attach to sketch geometry: this line is horizontal, that circle has a 10 mm radius, these two points are symmetric. FreeCAD shows constraints as small green icons next to your geometry — it even guesses a few for you while you draw, applying horizontal and vertical constraints based on how you clicked (source: Land of Kain, FreeCAD tutorial).
There are two families:
- Geometric constraints — horizontal, vertical, coincident (points touching), parallel, perpendicular, equal length, symmetry. These say how things relate.
- Dimensional constraints — lengths, distances, radii, angles. These say how big things are.
Here is the truth no ranking tutorial leads with: an unconstrained sketch is a drawing, not a part. If you Pad a sketch whose dimensions are not locked, the model will drift every time you edit it — holes wander, walls tilt, the part silently changes shape. The fix is the color: keep adding constraints until the sketch turns green and the Combo View confirms it is fully constrained (sources: Spoken Tutorial, Introduction to Part Design; Land of Kain, FreeCAD tutorial).
For your rectangle, do this: select the bottom edge and apply a horizontal distance constraint of 60 mm; select the left edge and apply a vertical distance constraint of 40 mm; select the center point of the grid and the rectangle's corner points and apply a symmetry constraint so the rectangle centers on the origin. The rectangle turns green. You have just built a fully constrained sketch — 60 × 40 mm, centered, and it will never drift.
How do you turn a sketch into a solid with Pad?
Pad extrudes a closed sketch into 3D. Close the sketch (OK in the Tasks panel), then click the Pad tool in the Part Design toolbar. The Pad dialog opens in the Combo View: set the Length to 8 mm and click OK. Your green rectangle is now a 60 × 40 × 8 mm solid block.
Two Pad options worth knowing immediately: Symmetric to plane extrudes equally in both directions (handy for brackets centered on a datum), and Reversed extrudes to the opposite side. Notice the model tree on the left: the Body now contains Pad, and Pad contains your Sketch. That nesting is FreeCAD telling you the dependency order — parent depends on child (source: Land of Kain, FreeCAD tutorial). Keep that picture in your head; it explains half the program's behavior.
How do you cut holes with Pocket?
Pocket is Pad in reverse — it removes material. Click the top face of your block to select it, then click Create sketch. You are now drawing on that face. Draw a circle roughly where you want a mounting hole, then constrain it: give it a radius of 2.5 mm (a 5 mm hole), and add horizontal and vertical distance constraints of 10 mm from two edges so the hole sits exactly 10 mm in from the corner.
Close the sketch and click Pocket. In the dialog, set the type to Through all so the cut passes cleanly through the part regardless of thickness, and click OK. You now have a mounting hole. Repeat the sketch-and-Pocket cycle for the other three corners — or better, sketch all four circles in one sketch and Pocket once, which keeps the tree tidy.
Worked example: a printable mounting plate
Here is the complete first part from this guide, with every dimension and constraint spelled out so you can build it in one sitting:
| Feature | Geometry | Constraints to apply |
|---|---|---|
| Base sketch | Rectangle, roughly centered | Horizontal distance 60 mm, vertical distance 40 mm, symmetric about origin → turns green |
| Pad | Extrude the sketch | Length 8 mm |
| Hole sketch (on top face) | 4 circles, roughly in the corners | Each radius 2.5 mm; each circle center 10 mm from its two nearest edges |
| Cut the holes | Type: Through all |
The result is a 60 × 40 × 8 mm mounting plate with four 5 mm holes — a genuinely printable part, built from two sketches and two features. Everything you add from here is the same pattern: new sketch, new feature, repeat. One practical habit from the FreeCAD UI guides: rename your features in the tree (Base sketch, Mounting holes) as you go, because the constraint and element lists get long fast and unnamed features are hard to find later (source: Artisans Asylum FreeCAD UI tutorial).
How do you change a part after it is built?
You never redraw — you edit the numbers. This is the second truth the shallow tutorials skip, and it is the entire point of parametric modeling: every sketch and feature in the tree keeps its dimensions, so double-click the base sketch in the tree, change the 60 mm constraint to 80 mm, close the sketch, and the block, holes, and pockets all update automatically (source: FreeCAD tutorial, develop.dfarb.by).
This is also what version 1.0's topological-naming fix improved: edits to earlier features are far less likely to break later ones than in the 0.x era (source: Hackster.io, on the FreeCAD 1.0 release). The workflow is: edit the sketch, not the solid.
How do you get the part out of FreeCAD for 3D printing or drawings?
Export a mesh for the printer, or a drawing for the shop. Select the Body and export it as an STL mesh — every slicer on the planet reads STL. FreeCAD is explicitly built for this: it is "an open source app to build models that you can e.g. 3D print" (source: Land of Kain, FreeCAD tutorial).
If you need a 2D engineering drawing instead, switch to the TechDraw workbench, insert a page, add views of your part, and export the sheet as PDF or SVG. The SVG export is a clean handoff to vector work — our Inkscape beginner guide picks up exactly there if you want to polish the drawing for documentation or laser cutting.
FreeCAD vs Blender: which should you learn first?
They do different jobs — learn the one that matches what you want to make. This is the cluster question our readers ask most, so here is the honest split:
| FreeCAD | Blender | |
|---|---|---|
| Core idea | Parametric CAD: dimensions drive the model | Mesh modeling: you sculpt the surface |
| Best for | Parts with exact dimensions — brackets, enclosures, 3D-printed mechanisms | Characters, props, game assets, renders, animation |
| Changing a size later | Edit one number; the part updates | Remodel or rescale by hand |
| Learning curve | Constraints and workbenches feel strict | Sculpting feels free; precision is the hard part |
| Cost | Free, open-source (LGPL) | Free, open-source |
Making a game? FreeCAD can still help with hard-surface props, but the game-asset pipeline lives in our Unity beginner guide. Making a drone chassis you will actually print? FreeCAD, no contest.
Mistakes every FreeCAD beginner makes
Every one of these is a rite of passage. Knowing them in advance saves hours:
| Mistake | What happens | The fix |
|---|---|---|
| Padding an unconstrained sketch | The model drifts on every later edit | Constrain until green before the first Pad |
| Sketching on the wrong face | Holes land on a side face | Select the face first, then Create sketch |
| Leaving features unnamed | "Sketch003" is unfindable a week later | Rename features in the tree as you go |
| Redrawing instead of editing | Hours wasted rebuilding | Double-click the sketch and change the dimension |
| Learning from 2019-era tutorials | Menus and workbench names have moved | Check that any tutorial matches the 1.x era |
Sources
- FreeCAD download documentation — current stable release 1.1.4 (published 2026-09-28), official download locations: reqrefusion.github.io/FreeCAD-Documentation-html/wiki/Download.html
- WoodworkCenter, "FreeCAD For Woodworking: 2026 Guide & Workflow" — FreeCAD 1.1.3 (July 25, 2026), CAM workbench renamed from Path: woodworkcenter.com/using-freecad-for-woodworking
- Wikipedia, "FreeCAD" — first released October 2002, LGPL-2.1-or-later license, 1.0 (November 18, 2024), stable 1.1 (March 24, 2026): en.wikipedia.org/wiki/FreeCAD
- ICON, "FreeCAD 1.1 Review (2026)" — version 1.1 details, official download sources (freecad.org, GitHub releases): iconpolls.com
- NetBSD pkgsrc-wip notice — 1.1.4 as last planned 1.1.x maintenance release, security fixes for crafted FCStd files: mail-index.netbsd.org
- Spoken Tutorial, "Introduction to Part Design Workbench" — Create Body → Create Sketch → constraints → fully constrained color change → Pad → Pocket workflow: script.spoken-tutorial.org
- Land of Kain, "FreeCAD tutorial" — Part Design as the beginner workbench, auto-applied constraints shown in green, sketch → Pad → Pocket workflow, mouse navigation: land-of-kain.de/docs/freecad
- Artisans Asylum Wiki, "FreeCAD Tutorial 0: The FreeCAD User Interface" — workbench model, tree/history list, feature renaming: wiki.artisansasylum.com
- FreeCAD development blog, "WIP Wednesday, 28 October 2026" — v26.3 development status: blog.freecad.org
Frequently asked questions
Is FreeCAD really free for commercial use?
Yes. FreeCAD is open-source software under the LGPL-2.1-or-later license, so there is no paid tier, no license server, and no commercial-use restriction (source: Wikipedia, checked October 2026). This is the sharpest contrast with the free tiers of commercial CAD, which typically forbid commercial work.
Which workbench should I start with in FreeCAD?
Part Design. It is the workbench built for parametric solid parts — sketches, constraints, Pad, and Pocket — and it is where every beginner guide on the internet starts. Sketcher opens automatically inside it; the rest can wait until your second week.
Why won't my sketch turn green in FreeCAD?
Green means fully constrained: every point and curve has enough geometric and dimensional constraints to fix it in place. Add horizontal/vertical constraints, lock the key dimensions (lengths, radii, distances from edges or the origin), and watch the color change — the Combo View will confirm the sketch is fully constrained. If a sketch stays white, something can still move.
Is FreeCAD good for 3D printing?
Yes — parametric CAD is arguably the best way to design printable mechanical parts, because you can iterate dimensions (wall thickness, hole sizes) by editing numbers instead of remodeling. Export the finished Body as an STL mesh and hand it to your slicer.
Should I learn FreeCAD or Blender?
Learn FreeCAD if you want parts with exact dimensions — brackets, enclosures, mechanisms, anything you will print or machine. Learn Blender if you want characters, game assets, and renders. They are complementary: many makers use both, FreeCAD for the functional part and Blender for the presentation.