Schools & educators
Know the lab
you inherited.
Build staff familiarity with the machines already in the room. Discuss everyday operation, file preparation, and how to recognize when a machine needs attention.
DDA Maker Technologies / Practical training
3D printing training.
Put the skills
in your hands.
Learn to use your equipment, understand your settings, and move your own projects forward. One-on-one guidance for hobbyists, educators, and businesses building fabrication capability.
The skills behind the work
Learn what we know.
Make it your own.
The ability to design a part, tune a printer, trace a fault, or build a custom machine comes from skills you can learn. We use them in our shop. We can help you build them in yours.
Start with a single skill, then keep going. Explore the practical knowledge behind DDA’s work and see where you want to take your own capability.
Print preparation
Turn a model into a deliberate print.
Understand the decisions between opening a file and starting the machine. Build a workflow you can repeat, then adapt it when the part changes.
FoundationOrient for the job
Decide which face belongs on the bed and where supports actually help.
Compare strength, surface finish, contact area, and support removal before slicing.
A shop insight
A model that stands upright on screen does not necessarily belong upright on the printer.
FoundationRead the preview
Inspect the sliced job before committing time and material.
Look for unsupported starts, missing features, unnecessary supports, and the paths that will become your walls.
A shop insight
The preview can explain why a small hole or thin wall disappears before the machine moves.
Go deeperMake a profile your own
Choose layer height, nozzle size, walls, infill, and speed around the part.
Use a controlled test to compare the tradeoffs, then save a profile you can identify and reuse.
A shop insight
More infill cannot fix every weak part. Orientation and the outer walls deserve attention, too.
Go deeperUnderstand the startup sequence
Recognize how homing, probing, mesh handling, and the slicer relate.
Review the commands appropriate to your firmware and verify what the printer actually does before a job.
A shop insight
An installed probe is only part of the story. The startup workflow has to use the correct leveling behavior.
Troubleshooting
Get from a symptom to a useful test.
A failed print is evidence. Learn how to read it, separate competing explanations, and choose a test that tells you something.
FoundationRead a first-layer failure
Distinguish an adhesion problem from a gap, surface, material, or calibration problem.
Use the pattern across the bed and the appearance of the deposited line to decide what to inspect.
A shop insight
Changing Z offset to compensate for a dirty surface can create a second problem while leaving the first one in place.
FoundationFollow the filament path
Work through feeding, friction, clogs, and inconsistent extrusion.
Review the spool, feeder, tubes, extruder, hotend, and nozzle as a connected system.
A shop insight
A feeder error does not prove the feeder is faulty. A restriction farther along the path can stop it from doing its job.
Go deeperSeparate motion faults from print settings
Investigate shifts, binding, unreliable homing, and mechanical play.
Connect the direction and timing of a failure to belts, bearings, pulleys, wiring, or an obstruction.
A shop insight
A setting change can hide a mechanical fault temporarily. Learn what observations would justify opening the machine.
Go deeperTest one explanation at a time
Compare a known file, a changed setting, and a repeatable symptom.
Keep useful notes and identify when the next step needs a measurement, inspection, or specialist repair.
A shop insight
If you change five things and the print improves, you still do not know which change mattered.
Materials & performance
Choose material for the part you need.
Move beyond choosing a spool by color. Connect the material, machine, and print strategy to how the finished part will be used.
FoundationMatch the material to the environment
Compare stiffness, flexibility, heat, sunlight, and wear against the part's job.
Work through familiar options such as PLA and PETG, then discuss when ABS, ASA, PC, or a reinforced material merits a closer look.
A shop insight
A material name is a starting point. The grade, print quality, and conditions of use still matter.
FoundationRecognize a material-handling problem
Consider storage, moisture, contamination, and spool feeding when results change.
Learn what observations justify drying, changing material, or testing a known spool.
A shop insight
Keep a reliable comparison material. It can help separate an unfamiliar spool from a newly developed machine problem.
Go deeperGet comfortable with flexible filament
Work through a TPU profile and a filament path suited to flexible material.
Connect feed behavior, speed, retraction, and geometry to the result you want.
A shop insight
The easiest path through the extruder for a rigid filament may be a poor path for a flexible one.
Go deeperBuild a functional-part test
Evaluate fit, flex, surface, and use conditions before making the whole batch.
Choose what to measure and what physical test will tell you whether to revise the material, geometry, or process.
A shop insight
Use different materials for different jobs within an assembly. A flexible component and its rigid housing need not share a spool.
Calibration & tuning
Know what each adjustment actually changes.
Leveling, probing, extrusion calibration, and vibration tuning solve different problems. Learn how they fit together and which one your machine needs.
FoundationSeparate tramming, mesh, and Z offset
Understand the bed plane, measured surface variation, and nozzle-to-bed reference.
Identify which adjustment changes which relationship, then verify the first layer.
A shop insight
A detailed mesh cannot tighten loose hardware or square an unstable frame.
FoundationCheck the probe and its reference
Recognize mounting, placement, clearance, and repeatability issues.
Review the physical setup before trusting a calibration result.
A shop insight
A probe can trigger successfully and still give an unhelpful reference if its mount moves.
Go deeperCalibrate motion and extrusion
Connect requested movement to measured movement and consistent material delivery.
Use the appropriate firmware settings and a repeatable measurement method, then validate the result.
A shop insight
Before changing axis calibration to fix a part's dimensions, check whether fit, shrinkage, or extrusion is the real issue.
Go deeperExplore heater and vibration tuning
Understand what PID tuning and input shaping address.
Discuss the prerequisites, supported tools, and validation checks for your machine.
A shop insight
Tune after relevant hardware changes, and keep thermal protections active. A calibration routine is not a substitute for a sound machine.
Custom machines & upgrades
Build a machine you understand.
Explore the decisions behind a custom build or a worthwhile upgrade. Learn to judge compatibility, serviceability, and the work needed to make the change succeed.
FoundationRead the mechanics
Inspect frame squareness, belts, pulleys, bearings, and cable movement.
Understand how assembly quality affects motion, repeatability, and maintenance access.
A shop insight
A printer can assemble successfully and still need careful alignment before it behaves like a finished machine.
FoundationChoose an upgrade that solves a problem
Compare an extruder, hotend, probe, or cooling change against a specific need.
Review the mechanical fit, software support, power requirements, and parts that have to change alongside it.
A shop insight
A better component is not automatically a better system. Compatibility is part of the upgrade.
Go deeperUnderstand control-board integration
Learn how motors, sensors, fans, heaters, and firmware connect in a custom setup.
Review documentation, pin assignments, low-voltage wiring, connectors, and strain relief at a depth suited to your experience.
A shop insight
A connector that fits does not establish the correct pinout or voltage. Check the documentation before connecting it.
Go deeperCommission and document the build
Plan checks for a machine after assembly or a major modification.
Verify individual systems, complete relevant calibration, and capture the configuration before moving to real work.
A shop insight
A successful test print is a milestone. Repeatable operation and a recoverable configuration make the machine easier to own.
Klipper, firmware & control
Make the software part of your toolkit.
Go beyond the printer's front panel. Understand the software that translates commands into motion, and build confidence with configuration, control, and recovery.
FoundationKnow the layers of the system
Distinguish slicer, printer firmware, host computer, and web interface.
Follow a job through the system so you know where a setting or error belongs.
A shop insight
The screen that displays an error is not necessarily the component that caused it.
FoundationMake a recoverable configuration
Learn to preserve working files and record what changed.
Review machine-specific settings and the information needed before an update or migration.
A shop insight
Keep a known working configuration before experimenting. Memory is a poor backup plan.
Go deeperConfigure the hardware deliberately
Read the relationship between documented pins, sensors, heaters, fans, and motion settings.
Work through configuration changes on a suitable machine and verify their behavior.
A shop insight
Closely related control boards can use different pin assignments. The exact board revision matters.
Go deeperConnect commands to useful behavior
Explore printer commands, startup behavior, and filament-sensor pause or runout handling.
Review a small, understandable change and test it before adding more automation.
A shop insight
Useful automation has a predictable recovery path. Think about what happens when a print pauses as well as when it starts.
CAD, scanning & real parts
Learn to develop the part, too.
Work from a physical need toward a model, a prototype, and a useful result. Learn which details need measuring and how to learn from the first version.
FoundationTurn the need into dimensions
Identify interfaces, constraints, and the dimensions that control fit.
Measure the sample or assembly and communicate the important details in a sketch or drawing.
A shop insight
Measure what the part has to mate with, not just the broken piece in your hand.
FoundationDesign for the process
Recognize walls, holes, overhangs, and details that may need a different approach.
Connect the model to what a printer or another fabrication process can actually produce.
A shop insight
A tiny feature that exists in CAD may disappear in slicing or fail in use.
Go deeperUse scanning with realistic expectations
Understand what captured geometry can contribute to a project.
Discuss scale, mesh cleanup, reconstruction, and when direct measurement or CAD is a better route.
A shop insight
A scan is not automatically an editable, dimensionally complete production model.
Go deeperIterate for fit and function
Use a physical test to decide what to change next.
Identify fit-critical dimensions, test a prototype, and record the revision before producing more parts.
A shop insight
Test the uncertain interface early. A small fit sample may answer the question before you print the complete object.
Resin printing
Understand a different kind of printer.
Build familiarity with resin-printing preparation and care. Learn which habits carry over from FDM and which parts of the workflow need a different approach.
FoundationUnderstand the resin workflow
Connect the model, supports, printer, washing, and curing stages.
Discuss the equipment, material instructions, and handling practices needed for your intended project.
A shop insight
Plan handling and post-processing alongside the print. The workflow continues after the build plate rises.
FoundationKnow the build surface and vat
Recognize the role of build-plate setup, release film, and vat condition.
Learn the checks appropriate to the machine before a job and after a failure.
A shop insight
A damaged film or debris in the vat deserves attention before another print attempt.
Go deeperPrepare small details deliberately
Explore scale, orientation, and support placement for a detailed part.
Consider how the geometry will print and how supported surfaces will be handled afterward.
A shop insight
Shrinking a model also shrinks its walls and details. Scale changes may require more than a smaller percentage in the slicer.
Go deeperSeparate preparation from machine faults
Recognize when a failed job calls for a file review, maintenance, or technical diagnosis.
Use the symptoms, machine behavior, and condition of the vat and plate to frame the next check.
A shop insight
Repeatedly running the same failed job provides little new information if nothing has been inspected or changed.
Laser, vinyl & file workflows
Take the idea beyond the printer.
Explore how artwork and geometry become cuts, markings, and stencils. Learn to ask the right questions about the file, material, and equipment before starting.
FoundationPrepare a useful fabrication file
Understand dimensions, scale, vector paths, and the difference between cutting and engraving content.
Review artwork or geometry for the intended tool and check what the exported file preserves.
A shop insight
A drawing that looks right on screen can still arrive at the wrong size or contain duplicated paths.
FoundationMatch the material to the tool
Learn how material composition and machine capability affect suitability.
Review the material and its documentation before processing rather than relying on appearance alone.
A shop insight
An unknown plastic is not identified by color. Ordinary PVC vinyl does not belong under a laser.
Go deeperConnect setup to the result
Understand how focus, alignment, workholding, and a controlled sample influence the work.
Discuss the checks appropriate to the specific laser and task, including rotary setups when relevant.
A shop insight
A successful test in one location does not settle every setup question across a larger work area.
Go deeperBuild a vinyl and stencil workflow
Connect vector preparation, cutting, weeding, transfer, and application.
Discuss how small details and the intended surface affect a useful decal or stencil design.
A shop insight
The machine may cut a tiny detail that is frustrating to weed or transfer. Design for the whole workflow.
Lab operation & equipment choices
Turn individual skills into a capability.
Build the habits that keep a workshop useful when projects, machines, and operators change. Learn to make equipment and support decisions with a clearer technical basis.
FoundationSelect equipment around the work
Compare machine size, material requirements, operating demands, and serviceability.
Start with intended projects, available space, and the people who will use and maintain the equipment.
A shop insight
The biggest build volume or longest feature list may not address the task that matters most.
FoundationMake routine care repeatable
Identify checks, consumables, and maintenance needs across your machines.
Develop a practical way to notice deterioration and record what needs attention.
A shop insight
A mixed fleet needs machine-specific care. One generic checklist can miss important differences.
Go deeperBuild a consistent file-to-part workflow
Connect known files, material choices, verified profiles, and useful handover notes.
Work toward a process another trained operator can follow and check.
A shop insight
A profile should identify the machine and material it was tested on. A familiar filename is not enough.
Go deeperJudge repair, upgrade, or replacement
Weigh the fault, available parts, documentation, and intended use before spending.
Separate a recoverable machine from one that will keep demanding attention beyond its value.
A shop insight
A repairable machine is not always the best machine to keep. Consider what you need it to do next.
No matching skills yet. Try a broader term such as “print,” “design,” or “firmware.”
Master your hardware Become the person who understands the machine, improves the process, and knows how to work through the next problem.
Build these skills with us
We shape the depth and pace around your experience, equipment, and goals. Advanced topics build on the fundamentals and the practice you put in.
Same tools. Different reasons to learn.
Make the capability your own.
Know the lab
Businesses & teams
Bring the workflow
in-house.
Work toward preparing your own models, prototypes, or fixtures. Focus instruction on the equipment and recurring tasks your team expects to handle.
Hobbyists & individuals
Get past the part
that has you stuck.
Start from scratch, return to a neglected printer, or untangle a project you have already begun. One-on-one help can meet you at your current experience level.
A natural next step
Working equipment.
Someone ready to use it.
DDA works on the machines as well as the projects they make. Training can connect that technical work to the person taking over.
Get familiar from the start.
Pair equipment selection and setup with guidance on the workflow you intend to use. Discuss training while planning the installation so the handoff addresses your first real task.
Understand what comes next.
Ask about training after the machine is working again. Use the repair discussion to identify useful topics such as material handling, routine care, or recognizing symptoms that deserve a closer look.
Unsure whether it is you or the printer? You do not need to decide before getting in touch. Describe what happens and what you have tried. We can discuss whether the next step is instruction, diagnosis, or both.
Before you book
A few practical
questions.
Do I need any experience?
No prior experience is needed. Tell us what you have used and what you want to do. A beginner’s first print and an experienced user’s specific workflow question call for different sessions.
Can we use my own printer and software?
That is a useful starting point. Send the manufacturer, model, software, and any relevant modifications so we can confirm suitability. If the machine is not working, it may need diagnosis or repair before hands-on instruction can be useful.
Can you help multiple staff members?
Tell us how many people will attend, their experience, the equipment, and the tasks they need to perform. We can discuss a suitable scope and format rather than assuming that one session works for every group.
Where does training take place, and how much does it cost?
Share your location and preferred arrangement when you inquire. We confirm the format, availability, session scope, and price before booking. New Jersey is our primary service area; we also welcome inquiries from New York, Pennsylvania, Delaware, and elsewhere in the Northeast.
Can I learn using an actual project?
Yes, bring the idea, file, sample, or problem you want to work through. We will review whether it is a suitable learning project. If you would prefer DDA to develop the design or make the part for you, our CAD design and 3D printing services offer another way forward.
Start with one useful skill
What would you like to
handle yourself?
Tell us what you want to learn, what equipment you have, and where you are starting. We can shape the next step together.