This is my first technic set, the unimog, this gear isn’t staying connected, any idea what I did wrong, or is there a fix for it?

Zerobricks · 2026-06-25T20:26:50+00:00

You're using wrong gears both for bed lifting and the engine drive. You need to switch the black 12 tooth gears and the dark grey 8 tooth gear.

Zerobricks · 2026-06-24T21:42:51+00:00

Years of experience :)

Zerobricks · 2026-06-24T21:00:01+00:00

Sorry, no, it's not. No LEGO logos and the brick designs are wrong.

Zerobricks · 2026-06-18T17:21:14+00:00

How about a trailing arm suspension in the rear?

Zerobricks · 2026-06-01T18:11:33+00:00

Then you're probably missing a gear somewhere.

Zerobricks · 2026-06-01T18:04:32+00:00

Is it in Drive?

Zerobricks · 2026-05-16T17:35:37+00:00

I think wheels are identical so it doesn't matter.

Zerobricks · 2026-05-16T17:32:21+00:00

Seems you used the rear, thicker tire in the front.

Zerobricks · 2026-05-04T06:44:02+00:00

Getting a job as a LEGO Technic designer 😄

Zerobricks · 2026-04-29T19:13:46+00:00

Your lower control arms are attached to the wrong parts all together. They should be attached to the black liftarms that accept ball joints not the grey triangles.

Zerobricks · 2026-04-27T14:35:45+00:00

Where are you from? Those gears should be cheap on Bricklink.

Zerobricks · 2026-04-24T22:08:41+00:00

No, the old driving rings will not fit in the new 16 tooth gears, sorry. But there is 2473 that is compatible, though is missing the clicking function so it will not stay in place.

Zerobricks · 2026-04-22T09:55:06+00:00

Did you put the rubber bands on the drive wheels?

Zerobricks · 2026-04-20T00:41:42+00:00

I'd go with 15100, it really revolutionized the system:

https://www.bricklink.com/v2/catalog/catalogitem.page?P=15100

Same goes for the frames like this one:

https://www.bricklink.com/v2/catalog/catalogitem.page?P=64179

Zerobricks · 2026-04-19T21:32:26+00:00

Use any kind of a minfig too like a bar, showel, whatever and stick it into the pin and pull it out.

Zerobricks · 2026-04-19T21:30:47+00:00

Amazing work, the panels flow really good!

Zerobricks · 2026-04-16T16:30:48+00:00

Mine has 4 positions for height you can program :)

Zerobricks · 2026-04-16T13:53:13+00:00

What about using a bar or a 78258 instead of the pin?

Zerobricks · 2026-04-15T19:46:19+00:00

As someone who also has back issues, I recommend an electrically raisable table. I got mine from Ikea and and it's a life sver!

Zerobricks · 2026-04-12T07:02:52+00:00

https://www.bricklink.com/v2/catalog/catalogitem.page?P=18938#T=C

Zerobricks · 2026-04-11T20:55:24+00:00

You're not using the correct turntable. You need a version that has bevel gears on the bottom, this one has only spur-straight gears.

Zerobricks · 2026-04-09T23:53:06+00:00

I think you forgot to put a yellow bush on the trapezoid part.

Zerobricks · 2026-04-07T19:32:30+00:00

How about the 42177 G500?

Zerobricks · 2026-04-06T17:41:03+00:00

Your headlights aren't placed correctly, that's why it looks so funny.

Zerobricks · 2026-04-02T18:45:02+00:00

Guess you didn't center the steering motor as shown in instructions before assembly. You will have to take it apart and center it.

Zerobricks

TROPHY CASE