Skip to content
Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • Building Set with People
    • Castle
    • Duplo
    • Fabuland
    • Harry Potter
    • Holiday and Event
    • LEGOLAND
    • Model Team
    • Pirates
    • Space
    • Star Wars
    • Technic
    • Town
    • Universal Building Set
    • Western
    • More Sets
    • Misc
  • USEFUL LINKS
    • Submit Instructions!
    • New Instructions
    • New Official Sets
    • New Alternate Builds
    • Minifigs
    • Very Small Builds
    • Small Builds
    • Medium Builds
    • Large Builds
    • Extra Large Builds
    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP
ABCs Alternate Builds Extra Large Alt Build Extra Large Builds Instructions Added M:Tron M:Tron Alternate Builds 

6989 – Back A

January 9, 2023June 23, 2025 Master Builder 5859 Views

From: 6989: Mega Core Magnetizer
Name: Mega Core Mining Unit 1
Instructions: View PDF | Download .io File 2

*Alternate Build Connection: 1980 Medium US Assortment Guide (106917/107017-US), 6870 – Back A, 6901 – Back B, 6901 – Back E, 6984: Galactic Mediator

Contributions

  1. Name, PDF and .io file submitted on January 9, 2023 by: Valdis
  2. Builder Notes: As this alternative build contains many movable and easily detaching parts/objects it is recommended to use it as model for shelf display or diorama builds.
  • ← 6590 – Back E
  • 6889 – Back C →

You May Also Like

6534 – Back C

July 8, 2022July 8, 2022 Master Builder

6882 – Back B

September 30, 2019September 30, 2019 Master Builder

1750 – Back C

July 13, 2021July 13, 2021 Master Builder

6841 – Back D

October 3, 2019October 25, 2021 Master Builder

6115 – Back B

March 20, 2023March 21, 2023 Master Builder

6952 – Back A

September 22, 2019August 16, 2023 Master Builder

EXPLORE MORE OFFICIAL SETS

6896: Celestial Forager
ABCs Jørn Thomsen M:Tron M:Tron Sets Official Sets Small Builds Space 

6896: Celestial Forager

January 26, 2022July 31, 2023 Master Builder

Year Released: 1990Designer: Jørn ThomsenBricklinkInstructions *Alternate Build Connection: 6862: Secret Space Voyager

7110: Landspeeder
Episode IV/V/VI Official Sets Small Builds Star Wars Star Wars Sets 

7110: Landspeeder

June 21, 2022March 1, 2023 Master Builder
6067: Guarded Inn
Castle Castle Sets Daniel August Krentz Large Builds Lion Knights Official Sets 

6067: Guarded Inn

February 9, 2021July 29, 2023 Master Builder
6529: Ultra Light I
Airport Classic Town Official Sets Town Town Sets Very Small Builds 

6529: Ultra Light I

July 14, 2022July 14, 2022 Master Builder
4910: Hover Scout
Official Sets Rock Raiders Rock Raiders Sets Very Small Builds 

4910: Hover Scout

March 1, 2023March 1, 2023 Master Builder
6931: FX-Star Patroller
ABCs Classic Space Classic Space Sets Medium Builds Official Sets Space 

6931: FX-Star Patroller

January 12, 2021March 20, 2025 Master Builder
6115: Shark Scout
Aquashark Aquazone Aquazone Sets Official Sets Very Small Builds 

6115: Shark Scout

April 9, 2020March 21, 2023 Master Builder
6268: Renegade Runner
Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6268: Renegade Runner

April 9, 2020July 13, 2021 Master Builder
2160: Crystal Scavenger
Aquaraiders I Aquazone Aquazone Sets Medium Builds Official Sets 

2160: Crystal Scavenger

April 25, 2023April 25, 2023 Master Builder
6802: Space Probe
Classic Space Classic Space Sets Official Sets Space Very Small Builds 

6802: Space Probe

October 10, 2022October 10, 2022 Master Builder
6551: Checkered Flag 500
Medium Builds Official Sets Town Town Sets 

6551: Checkered Flag 500

November 21, 2023November 21, 2023 Master Builder
1665: Duel FX Racers
Official Sets Small Builds Town Town Sets 

1665: Duel FX Racers

April 30, 2024April 30, 2024 Master Builder
6799: Showdown Canyon
Box Plus Cowboys Official Sets Playscape/Play Stage Box Small Builds Western Western Sets 

6799: Showdown Canyon

August 1, 2023October 8, 2024 Master Builder
6267: Lagoon Lock-Up
Daniel August Krentz Imperial Soldiers Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6267: Lagoon Lock-Up

October 11, 2021July 29, 2023 Master Builder
1747: Treasure Cave
Official Sets Pirates Pirates I Pirates Sets Very Small Builds 

1747: Treasure Cave

May 6, 2022May 6, 2022 Master Builder
6082: Fire Breathing Fortress
Castle Castle Sets Dragon Knights Large Builds Official Sets 

6082: Fire Breathing Fortress

January 13, 2022January 13, 2022 Master Builder

BOXES

INSTRUCTIONS

FAVORITES

MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

Copyright © 2026 Back of the Box Builds. All rights reserved. LEGO® is a trademark of the LEGO Group of companies which does not sponsor, authorize, or endorse this site.