3D printing can seem almost magical the first time you see it.
You create something on a computer.
You press a button.
And a few hours later, there it is sitting on your desk.
But there’s actually quite a lot happening between those two moments.
Your computer model has to be converted into instructions that the printer understands. The model needs to be positioned correctly. The printer needs the right material and settings. The first layer needs to stick to the build plate. The machine then has to build hundreds—or sometimes thousands—of individual layers.
And eventually, if everything goes well, you have a physical object.
The good news is that you don’t need to understand all the technical details to get started.
The basic workflow is surprisingly straightforward:
Design → Export → Slice → Prepare → Print → Inspect → Finish
This article takes you through the entire process.
What Exactly Is 3D Printing?
3D printing is a manufacturing process that creates an object by building it up layer by layer.
Unlike traditional manufacturing, where you might start with a block of material and remove pieces, 3D printing generally adds material only where it is needed.
This is why 3D printing is often described as additive manufacturing.
A typical desktop filament printer works something like this:
- Plastic filament is fed into the printer.
- The filament is heated.
- A nozzle deposits the molten material.
- The printer moves according to a programmed path.
- The material cools and solidifies.
- The next layer is deposited.
- The process repeats.
Eventually, hundreds of layers become one physical part.
There are other forms of 3D printing—including resin, powder-bed and industrial systems—but filament-based FDM/FFF printing is one of the easiest places for a beginner to start.
The Complete 3D Printing Workflow
Before we get into the details, here’s the big picture.
A typical project looks like this:
1. Think of an idea
↓
2. Create a CAD model
↓
3. Check the design
↓
4. Export the model
↓
5. Import it into a slicer
↓
6. Choose printer and material settings
↓
7. Generate the toolpath
↓
8. Preview the layers
↓
9. Transfer the file to the printer
↓
10. Prepare the printer
↓
11. Start the print
↓
12. Monitor the first layers
↓
13. Allow the print to finish
↓
14. Remove the part
↓
15. Clean up and inspect it
↓
16. Test the finished part
That’s the entire journey.
Now let’s look at each stage.
Step 1: Start With an Idea
Every 3D printed object starts with a problem, an idea or simply something you want to make.
Maybe you need:
- A phone stand
- A replacement knob
- A bracket
- A box
- A cable organiser
- A tool holder
- A model
- A prototype
- A custom enclosure
- A replacement component
The first question isn’t:
“What printer should I buy?”
It is:
“What am I trying to make?”
This matters because the design determines almost everything that follows.
Step 2: Create the CAD Model
If you’re designing your own part, you’ll normally create it in CAD software.
CAD stands for:
Computer-Aided Design.
Popular CAD programs include:
- Fusion
- FreeCAD
- SolidWorks
- Onshape
- Tinkercad
- Blender for certain types of modelling
They don’t all work in exactly the same way.
For mechanical parts, CAD programs such as Fusion, FreeCAD, SolidWorks and Onshape are particularly useful because they allow you to work with accurate dimensions and constraints.
For simple decorative objects, other modelling tools may be more suitable.
What Does a CAD Model Actually Do?
Think of your CAD model as the digital blueprint for your object.
Suppose you’re designing a simple bracket.
You might specify:
Width: 50 mm
Height: 30 mm
Thickness: 5 mm
Hole diameter: 6 mm
The computer model describes the geometry.
At this stage, you haven’t actually told the 3D printer how to manufacture it.
That’s an important distinction.
The CAD model describes what the object is.
The slicer will later determine how the printer should make it.
CAD Is Not the Same as a Printable File
This confuses almost every beginner at some point.
You might create a model in CAD and save it as:
.FCStd
.F3D
.SLDPRT
or another native CAD format.
Your 3D printer generally doesn’t use that native CAD file directly.
Instead, you normally export the geometry into a format that your slicer can interpret.
Common formats include:
STL
and increasingly:
3MF
STL: The Classic 3D Printing Format
STL has been used in 3D printing for decades.
It represents the surface of a three-dimensional object using a mesh of triangles.
Imagine covering the surface of your object with thousands of tiny triangular pieces.
The more triangles you use, the more closely the mesh can approximate curved surfaces.
An STL file doesn’t normally contain all the design intelligence of your original CAD model.
It essentially describes the object’s surface geometry.
3MF: A More Modern Alternative
3MF stands for:
3D Manufacturing Format.
It was developed specifically to address some limitations of older formats such as STL.
A 3MF project can contain more information about a print than a basic STL, including things such as multiple objects and additional manufacturing information depending on the software workflow.
If your CAD software and slicer support 3MF, it can be a very useful format.
For a beginner, however, the important thing is simply:
Your CAD model needs to be converted into a format your slicer understands.
Step 3: Check Your Design Before Exporting
Before sending the model to the slicer, inspect it.
Ask:
Is the model complete?
Are all the features there?
Are the dimensions correct?
Measure important areas.
Are holes large enough?
Remember that a printed hole may not come out exactly the same size as the CAD model.
Are thin walls strong enough?
A wall that is technically printable may be too fragile for actual use.
Are there unsupported areas?
Think about how the printer will physically build the object.
Does it need support material?
We’ll come back to this.
Design for 3D Printing
A CAD model can be geometrically perfect and still be a terrible 3D print.
This is because 3D printers have physical limitations.
For example, you might design a horizontal bridge extending 100 mm into empty space.
The CAD program doesn’t care.
The printer does.
There is nothing underneath the first part of the bridge to support it.
The result could be sagging or failure.
This is why you need to think about design for additive manufacturing.
In other words:
Don’t just design an object. Design an object that your printer can actually build.
Step 4: Export the Model
Once you’re happy with the design, export it.
For many workflows, you’ll select:
STL
or:
3MF
You may also be asked about mesh resolution.
For a simple mechanical component, an ordinary resolution is usually sufficient.
For highly curved objects, a finer mesh may be appropriate.
Don’t automatically choose the highest possible resolution.
An unnecessarily dense mesh can create huge files without producing a meaningful improvement in the final print.
Step 5: Open Your Slicer
Now we reach one of the most important pieces of software in the entire process.
The slicer.
A slicer takes your 3D model and converts it into a series of horizontal layers and machine instructions.
Popular slicers include:
- Cura
- PrusaSlicer
- OrcaSlicer
- Bambu Studio
- UltiMaker Cura
- Other manufacturer-specific slicers
The exact software you use will depend on your printer.
What Does the Slicer Actually Do?
Imagine taking your 3D model and slicing it horizontally into hundreds of extremely thin pieces.
Like this:
_______
/ \
/ Layer 5 \
/___________\
\ Layer 4 /
\________/
/ Layer 3 \
/___________\
\ Layer 2 /
\________/
/ Layer 1 \
/___________\
The slicer works out what each layer should look like.
It then generates the instructions needed to create those layers.
Those instructions commonly take the form of G-code.
G-Code: The Printer’s Instructions
G-code is a machine-control language used by many CNC machines and 3D printers.
It contains instructions such as:
- Move here
- Move there
- Extrude material
- Stop extruding
- Change temperature
- Change speed
- Turn a fan on
- Return to a particular position
You don’t normally need to write G-code manually.
The slicer creates it for you.
This is one of the reasons the slicer is so important.
Your workflow is essentially:
CAD → Slicer → G-code → Printer
Step 6: Choose Your Material
Now you need to tell the slicer what material you’re using.
For filament printers, common materials include:
PLA
PLA is one of the easiest materials for beginners.
It is commonly used for:
- Models
- Prototypes
- Decorations
- General-purpose parts
It generally prints at relatively modest temperatures and is often forgiving for beginners.
PETG
PETG can provide greater toughness and temperature resistance than PLA in many applications.
It’s useful for:
- Functional parts
- Brackets
- Containers
- Workshop components
It can require a little more care than PLA.
ABS
ABS has useful mechanical and temperature characteristics, but it can be more difficult to print because of shrinkage and warping.
It may also require an enclosed printer and appropriate ventilation depending on the machine and environment.
TPU
TPU is a flexible filament.
It can be useful for:
- Flexible covers
- Feet
- Gaskets
- Grips
- Protective parts
Flexible materials can require different feeding and printing settings from rigid filaments.
Don’t Choose Material Just Because It Is Available
Think about what the part needs to do.
Ask:
Does it need to be strong?
Does it need to flex?
Will it get hot?
Will it be outside?
Does it need to look good?
Does it need chemical resistance?
Does it need to be food-contact safe?
The cheapest or easiest filament isn’t necessarily the right material for the job.
Step 7: Choose Layer Height
Layer height determines how thick each printed layer will be.
For example:
0.10 mm
0.20 mm
0.30 mm
A smaller layer height means more layers.
A larger layer height means fewer layers.
Small Layer Height
A smaller layer height can provide:
- Smoother curved surfaces
- More visible detail
- Better vertical resolution
But the print takes longer.
Imagine a 20 mm tall object.
At:
0.20 mm layers
you need approximately 100 layers.
At:
0.10 mm layers
you need approximately 200 layers.
That’s twice as many layers.
Larger Layer Height
A larger layer height can:
- Reduce printing time
- Produce stronger-looking layer structures in some cases
- Be suitable for rough prototypes
But surface detail can be reduced.
For many general-purpose prints, around 0.20 mm is a useful starting point on printers using a typical 0.4 mm nozzle.
Your printer may support different values.
Step 8: Understand the Nozzle
The nozzle is where the molten filament exits.
A common desktop FDM printer nozzle is around:
0.4 mm
But other sizes are available.
For example:
- 0.2 mm
- 0.4 mm
- 0.6 mm
- 0.8 mm
A smaller nozzle can be useful for fine detail.
A larger nozzle can deposit more material and can be useful for faster, stronger or larger prints.
Your nozzle size influences what layer heights and extrusion widths are practical.
Step 9: Choose Infill
Most 3D prints don’t need to be completely solid.
Instead, the inside can contain a pattern called infill.
For example:
+----------------+
|################|
|# #|
|# X X X X #|
|# X X X X X #|
|# X X X X #|
|# #|
|################|
+----------------+
The slicer creates this internal structure automatically.
Common infill patterns include:
- Grid
- Lines
- Gyroid
- Honeycomb
- Cubic
- Other specialised patterns
How Much Infill Do You Need?
A decorative model might require relatively little infill.
A functional component may require more.
But don’t assume:
100% infill = automatically strongest possible part.
Strength also depends on:
- Wall thickness
- Layer orientation
- Material
- Infill pattern
- Infill percentage
- Printing temperature
- Layer adhesion
- Part geometry
For many general-purpose objects, something like 10–25% infill can be a useful starting range.
The correct value depends on the application.
Walls Often Matter More Than Infill
This is an important lesson.
If you want to strengthena functional part, increasing the number of perimeter walls can sometimes be more useful than simply increasing infill.
Imagine a hollow box.
Its outer walls carry much of the load.
Increasing the wall thickness can therefore make a substantial difference.
A practical approach is often:
Use sensible wall thickness first, then adjust infill according to the application.
Step 10: Understand Supports
Supports are temporary structures printed underneath parts that would otherwise be impossible—or difficult—to build.
Imagine printing a letter T.
The horizontal top of the T extends sideways.
At some point, there is nothing underneath it.
The printer can’t simply extrude plastic into empty air indefinitely.
Support material provides a temporary foundation.
After the print finishes, you remove it.
When Do You Need Supports?
You may need supports for:
- Large overhangs
- Bridges
- Horizontal surfaces
- Certain curved shapes
- Complex geometries
But supports aren’t free.
They use:
- Extra filament
- Extra time
They can also leave marks on the surface.
Therefore, good 3D-printing design often tries to minimise supports.
Rotate the Model Before Adding Supports
Here’s a very useful trick.
Sometimes you don’t need supports at all.
You just need to rotate the model.
Imagine a bracket that requires supports in one orientation.
Rotate it 90 degrees.
Suddenly, most of the geometry may be printable without them.
Before adding supports, ask:
Can I orient this part differently?
This simple question can save a lot of material and post-processing.
Step 11: Choose Print Orientation
Orientation affects much more than supports.
It can affect:
- Strength
- Surface finish
- Print time
- Layer visibility
- Accuracy
- Support requirements
This is one of the most important decisions in 3D printing.
Layer Direction Affects Strength
FDM parts aren’t equally strong in every direction.
The layers are bonded together, but the strength between layers can differ from the strength within a layer.
Imagine printing a hook.
If the hook is oriented incorrectly, the force could try to pull the layers apart.
Rotate it and the load may instead be carried through the stronger direction of the printed structure.
This is called anisotropy.
In simple terms:
The direction you print something can affect how strong it is.
Design for the Load
Before printing a functional component, ask:
Where will the force come from?
Which direction will the part be pulled?
Which direction will it bend?
Where will the stress concentrate?
Then choose an orientation that helps the printed structure handle those forces.
Step 12: Check the Build Plate
Before printing, make sure your build plate is ready.
Depending on the printer, this may involve:
- Cleaning the surface
- Levelling or calibrating the bed
- Checking the build surface
- Ensuring the nozzle is at the correct height
- Confirming the printer is calibrated
The first layer is extremely important.
If the first layer fails, the rest of the print doesn’t have much chance.
The First Layer
Think of the first layer as the foundation of a building.
If the foundation is poor, everything above it is compromised.
You want the filament to adhere properly to the build surface.
If the nozzle is too far away:
Poor adhesion.
If it is too close:
The filament may be excessively squashed and extrusion can become restricted.
The exact first-layer setup depends on your printer and build surface.
Step 13: Load the Filament
Load the correct filament into the printer.
Make sure:
- The filament is correctly routed
- The nozzle is appropriate
- The material profile matches the filament
- The filament is in reasonable condition
Some materials absorb moisture from the air.
Wet filament can produce:
- Popping sounds
- Stringing
- Poor surface finish
- Weak prints
- Inconsistent extrusion
PLA can absorb moisture too, although some materials are considerably more moisture-sensitive than others.
If a filament has been stored for a long time in a humid environment, drying it may improve print quality.
Step 14: Start the Print
Once everything is ready, start the job.
But don’t immediately walk away.
Watch the first few layers.
This is one of the best habits you can develop.
What to Watch For
Look at the first layer.
Is the filament sticking?
Is the line continuous?
Are there gaps?
Is the nozzle dragging material around?
Does the part appear firmly attached?
If something goes wrong during the first layer, stopping the print early can save:
- Time
- Filament
- Frustration
The Famous “Spaghetti”
Sometimes a print fails spectacularly.
Instead of producing a beautiful part, the printer creates something resembling a pile of plastic spaghetti.
This usually happens because the printed structure has detached or otherwise failed, while the printer continues following the programmed toolpath.
If you see this happening, stop the print.
Don’t allow the printer to continue for another five hours.
Step 15: Let the Print Finish
Once the first layers are successful, you can generally allow the printer to continue.
Depending on the machine, you may be able to monitor:
- Temperature
- Print progress
- Remaining time
- Filament usage
Some modern printers provide cameras and remote monitoring.
But don’t assume technology eliminates the need for supervision.
A 3D printer is still a machine operating with:
- Heat
- Moving components
- Electrical power
- Molten material
Follow your printer manufacturer’s safety guidance and don’t operate equipment in a way that creates an unattended fire or other hazard.
Step 16: Remove the Finished Part
When the print is complete, allow the part and build surface to cool as appropriate for your printer.
Some materials release more easily after cooling.
Don’t immediately attack the part with a screwdriver or sharp metal tool.
You can damage:
- The build surface
- The part
- Your hands
Use the removal method recommended for your printer and build plate.
Step 17: Remove Supports and Brims
Your finished part may have temporary structures attached.
These could include:
- Supports
- Brims
- Rafts
- Support interfaces
Remove them carefully.
Depending on the material and print settings, this might be done by hand or with suitable hand tools.
Be particularly careful around small features.
Step 18: Inspect the Part
Don’t simply look at the part and decide:
“It printed.”
Inspect it.
Ask:
Are the dimensions correct?
Measure important features.
Are the holes the right size?
Test them with the intended screw, shaft or component.
Are the walls consistent?
Look for defects.
Are there cracks?
Check stressed areas.
Did the layers bond properly?
Look for splitting.
Is there excessive stringing?
This can indicate a settings or material issue.
Your First Print Is Also a Test
If the part doesn’t work perfectly, don’t immediately conclude that the printer is bad.
You may have discovered something useful.
Perhaps:
- The hole needs to be larger.
- The wall needs to be thicker.
- The part needs a different orientation.
- The support structure needs changing.
- The material needs different settings.
- The first layer needs adjustment.
This is the normal process of 3D printing.
Print → Test → Modify → Print again.
Designing Holes and Clearances
This becomes particularly important when making functional parts.
Suppose you design a:
5 mm hole
and want a 5 mm shaft to pass through it.
You might assume they’ll fit perfectly.
They may not.
The printed hole can be slightly smaller or otherwise different from the CAD dimension due to:
- Printer accuracy
- Material behaviour
- Cooling
- Layer geometry
- Extrusion characteristics
- Slicer settings
So functional parts often require clearance.
You may need to experiment with slightly larger holes depending on the application.
This is another reason calibration and test pieces are useful.
Designing Threads
3D printers can produce threads.
But small threads can be difficult.
For a functional threaded connection, you may need to experiment with:
- Thread size
- Clearance
- Layer height
- Orientation
- Material
- Print quality
For heavily loaded connections, a metal threaded insert may be a better solution.
3D printing doesn’t mean every component has to be plastic.
Often the best product combines:
3D-printed geometry + standard hardware.
Screws, Nuts and Inserts
You can design your parts to accept:
- Nuts
- Bolts
- Screws
- Heat-set inserts
- Bearings
- Magnets
- Shafts
- Other components
This is where 3D printing becomes particularly powerful.
Instead of trying to print an entire mechanism, you can print the custom body and combine it with inexpensive standard components.
A Simple Beginner Project
If you’ve never used a 3D printer before, don’t start with a 20-hour mechanical assembly.
Start small.
A great first project might be:
A simple phone stand.
You can:
- Create the shape in CAD.
- Export it.
- Import it into the slicer.
- Choose PLA.
- Use a moderate layer height.
- Add sensible walls and infill.
- Check the preview.
- Print it.
- Inspect the result.
- Modify the design if necessary.
You have just completed the entire CAD-to-part workflow.
Another Good Beginner Project: A Box
A small box is even more educational.
You can experiment with:
- Walls
- Lids
- Hinges
- Clearances
- Press fits
- Screws
- Magnets
- Print orientation
Eventually, you can design your own enclosures for electronics and other projects.
Common Beginner Mistakes
Mistake 1: Printing Before Checking the Model
A tiny design problem can waste hours of printing.
Fix: Inspect the model before slicing.
Mistake 2: Using the Wrong Material Profile
The slicer settings don’t match the filament.
Fix: Select the correct material profile and follow the filament manufacturer’s recommendations.
Mistake 3: Ignoring the First Layer
The print starts badly and continues anyway.
Fix: Watch the first layer.
Mistake 4: Making Everything Solid
You assume 100% infill is necessary.
Fix: Use sensible walls and infill based on the job.
Mistake 5: Ignoring Orientation
You print the part in the orientation that looks natural on screen.
Fix: Choose orientation based on strength, surface quality and support requirements.
Mistake 6: Using Supports Everywhere
You allow the slicer to generate huge amounts of support material.
Fix: Rotate the model first and minimise unnecessary supports.
Mistake 7: Making Tiny Features Too Small
The CAD model contains tiny holes, pins and walls.
The printer struggles to reproduce them.
Fix: Design features appropriate to your nozzle, layer height and printer.
Mistake 8: Expecting the First Version to Be Perfect
The part doesn’t fit.
You throw it away.
Fix: Treat the first print as a prototype.
The Importance of Calibration
As you become more serious about 3D printing, you’ll encounter the word:
Calibration.
Calibration means adjusting the printer so that its physical behaviour matches your intended results as closely as practical.
This can involve things such as:
- Extrusion
- Flow
- Temperature
- Retraction
- Bed levelling
- First-layer height
- Dimensional accuracy
- Pressure/advance or equivalent motion settings
- Input shaping on supported printers
You don’t need to master all of these on your first day.
Start with the basics.
Learn your printer.
Then improve it gradually.
Don’t Change Everything at Once
This is exactly the same principle we discussed with laser cutting.
If your print has a problem, don’t immediately change ten settings.
Suppose your print has poor dimensional accuracy.
You change:
- Temperature
- Speed
- Flow
- Retraction
- Layer height
- Infill
- Acceleration
and suddenly it improves.
You have no idea which change fixed the problem.
Instead:
Observe → Identify likely cause → Change one thing → Test again.
This is how you learn.
Understanding Print Time
When you slice your model, the software normally estimates how long the print will take.
Print time depends on factors such as:
- Model size
- Layer height
- Infill
- Number of walls
- Supports
- Print speed
- Travel movements
- Acceleration
- Printer characteristics
A small object might take:
30 minutes
A large detailed object might take:
20 hours
This is why slicing is so useful.
You can see the estimated time before committing to the print.
Understanding Filament Usage
The slicer will often estimate how much filament you’ll use.
For example:
35 g
or:
12 metres
This is useful when estimating project costs.
If your filament costs $25 per kilogram and your part uses 40 g:
40 g ÷ 1000 g × $25 = $1.00
That’s only the material cost.
If you’re making products commercially, you also need to consider:
- Electricity
- Machine depreciation
- Labour
- Failed prints
- Post-processing
- Packaging
- Design time
- Maintenance
- Profit
But filament usage gives you a useful starting point.
The Difference Between a Prototype and a Product
One of the great advantages of 3D printing is that you don’t have to get everything right the first time.
Imagine designing a bracket.
Version 1
The hole is too small.
Version 2
The hole is correct, but the bracket flexes.
Version 3
You make the walls thicker.
Version 4
You improve the mounting points.
Version 5
Everything works.
You have gone from:
Idea → Prototype → Test → Improvement → Final design
This is one of the biggest strengths of 3D printing.
From Prototype to Production
Once you’ve developed a successful part, you can think about producing multiple copies.
At this point, consistency becomes important.
You want:
- Repeatable dimensions
- Reliable material
- Consistent printer settings
- Stable environmental conditions
- Repeatable orientation
- Consistent post-processing
You may also discover that 3D printing isn’t the best manufacturing method for producing thousands of identical parts.
That’s okay.
3D printing can be an excellent way to develop a product before moving to:
- Injection moulding
- CNC machining
- Laser cutting
- Vacuum forming
- Other manufacturing processes
The technologies can work together.
CAD, Slicer and Printer: Three Different Jobs
If you remember only one technical distinction from this article, remember this:
CAD
Designs the object.
Slicer
Works out how to print the object.
Printer
Physically manufactures the object.
Or, even simpler:
CAD = What
Slicer = How
Printer = Make it
Understanding this makes the entire workflow much easier to understand.
The Complete Beginner Workflow
Let’s put everything together one final time.
1. Have an idea
Decide what you want to make.
2. Create the CAD model
Build the object digitally.
3. Check the design
Look for thin walls, unsupported features, incorrect dimensions and other problems.
4. Export the model
Use a suitable format such as STL or 3MF.
5. Open the slicer
Import the model.
6. Select your printer
Make sure the correct machine profile is selected.
7. Select your material
Choose the appropriate filament profile.
8. Choose layer height
Balance quality and print time.
9. Choose walls and infill
Give the part the structure it needs.
10. Choose orientation
Consider strength, supports and appearance.
11. Add supports if necessary
Don’t add them automatically if a better orientation can eliminate them.
12. Preview the layers
Look carefully at the sliced model.
13. Generate the print file
The slicer creates the printer instructions.
14. Prepare the printer
Check the build plate, filament and machine.
15. Start the print
Watch the first layer.
16. Monitor the job
Keep an eye on longer or important prints.
17. Remove the finished part
Follow the printer and build-plate manufacturer’s recommended procedure.
18. Clean it up
Remove supports, brims and unwanted material.
19. Inspect it
Measure important dimensions and test the part.
20. Improve the design
If something isn’t right, modify the CAD model and print again.
The Golden Rule of 3D Printing
The most useful thing to understand as a beginner is that 3D printing is not simply pressing a button.
It’s a process.
You design something.
You make assumptions.
You print it.
Reality tells you what you got wrong.
You change the design.
You print it again.
Eventually, your digital model and physical object start behaving the way you intended.
That’s not failure.
That’s engineering.
Final Thoughts
3D printing becomes much less intimidating once you understand the workflow.
You don’t need to know everything about temperatures, extrusion, retraction, acceleration, support structures and advanced slicer settings on your first day.
Start with the fundamentals:
Design a simple part.
Export it.
Slice it.
Check the preview.
Prepare the printer.
Watch the first layer.
Let it print.
Inspect the result.
Then do it again.
Your first print may not be perfect.
Your second one may still have problems.
But after a few projects, you’ll start developing an instinct for what makes a good printable design.
You’ll look at a CAD model and immediately notice:
“That overhang will need support.”
“That wall is too thin.”
“That hole needs clearance.”
“I should rotate this part.”
“That needs to be stronger in this direction.”
And that’s when 3D printing becomes much more than a machine that makes plastic objects.
It becomes a way of turning ideas into physical things.
