The short answer
Each level starts with a brief, you do the job in 3D, then a factory acceptance test checks your work against the brief. It lists every check, and you can fix what failed and run it again.
On every level
1Read the brief
2Do the job in 3D
3Run the acceptance test
Fix what failed, run again
A lab is made of levels. You can open any level, so you do not have to go in order.
On each level
- Read the brief. It lists the tasks and the checks you must pass.
- Do the job. Land wires, write logic, jog the arm or set a rule. The lab reacts as the real kit would.
- Pass the test. A factory acceptance test checks your work and shows every check with its result.
If a check fails, fix it and run the test again. There is no penalty for trying again.
Which level next
The lab shows the level number, for example Level 3 of 8, and a level switcher with each level's status. After a pass it suggests the next level or lab.
Rating a lab
A signed-in learner who has saved work in a lab can rate it and leave a short review.
Updated 22 October 2026
Related questions
- What is the 3D Lab and is it free?The 3D Lab is a set of engineering labs that run in your browser: wire a panel, write PLC logic, teach a robot, tune a loop and more. Opening a lab, doing the levels and passing the test are free.
- Is my 3D Lab work saved?Yes. If you are signed in, your work is saved to your account for each level. If you are not, it is kept on this device and moves to your account when you sign in.
- Where can I watch the lab videos?The 3D Lab page has a tour video, and each lab has a short walkthrough on lab.edwartens.com so you can see what you will do before you start.
- How do I open the 3D Lab?Go to the 3D Lab page and press Start a free lab. It opens lab.edwartens.com, where you pick a lab and a level. You can start without an account and sign in free to record your results.
- Does the 3D Lab work on my phone or in my browser?Yes. The labs run on phones, tablets and laptops in a recent Chrome, Edge, Firefox or Safari. A laptop or large tablet is easier for wiring and ladder logic, because you have more room.
- Where do I see my lab results?Open EDWartens Lab in your student menu to see My lab work: where to continue, your progress and the levels you have passed. Results are recorded only when you are signed in.
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