Portal 2 Chamber 7 Walkthrough Guide

Q: How to solve Chamber 7 in portal 2?

This chamber requires you to use portals to redirect a laser, but with a twist that lets you unlock the 'Preservation of Mass' achievement. The main goal is to get the laser into the receptacle, but there's a way to do it without breaking the rules.

Q: Portal 2 Chamber 7 achievement?

This chamber requires you to use portals to redirect a laser, but with a twist that lets you unlock the 'Preservation of Mass' achievement. The main goal is to get the laser into the receptacle, but there's a way to do it without breaking the rules.

Q: Portal 2 Preservation of Mass achievement?

This chamber requires you to use portals to redirect a laser, but with a twist that lets you unlock the 'Preservation of Mass' achievement. The main goal is to get the laser into the receptacle, but there's a way to do it without breaking the rules.

AntMag.NET

Alright, welcome back to Aperture Science! We're diving into Chapter 2, specifically Chamber 7. This one's got a special little something for achievement hunters, so pay attention!

Walkthrough

1
You'll start in the test chamber. Your primary objective is to direct the energy pellet into the receptacle.
2
Notice the laser emitter and the receptacle. You'll need to use your portal device to create a path.
3
Place one portal on a surface where the laser can hit it, and another portal near the receptacle.
4
The trick for the 'Preservation of Mass' achievement is to use the laser to destroy the turret *before* it shoots you or the energy pellet. You can do this by carefully angling the portals so the laser hits the turret directly.
5
Once the turret is dealt with, ensure the energy pellet is directed into the receptacle. This will open the exit.

Tips

The 'Preservation of Mass' achievement specifically asks you to break the rules. This usually means doing something unexpected or in a way that bypasses a standard mechanic. In this chamber, it relates to how you handle the turret and the laser.
Don't be afraid to experiment with portal placement. Sometimes a slight adjustment can make all the difference.
Watch out for the turret's firing pattern. It's best to disable it quickly.

Achievement:

Preservation of Mass: Break the rules in Test Chamber 07. (This is achieved by using the laser to destroy the turret.)

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