How do you use the nether reactor in minecraft pe?

You must build a frame for it. I will try to describe the frame the best i can.

Needed:

reactor core

cobblestone

4 gold blocks

Key: O= cobblestone

V= Gold block

C= reactor core

get cob and make a 3 block long straight line flat on with 1 on each side in the middle block forming a plus sign

Example: O THere is cob on the top its just the text is weirding out

OOO

O

Put gold blocks in the corners

VOV

OOO

VOV

On top of the middle cobstone place the reactor

Put cobble on top of each gold block

Put cob on top of the reactor

on each side of the cobble on top of the reactor put cob there except the top(make sure you can see the sides of the reactor except the top and bottom)

That should be it sorry if its confusing.

Tip: you can harvest the reactor for another use by removing the obsidian on the sides of it

Warning: Build this far from your house or the house will be flodded with obsidian possibly breaking chests

WArning: Bring a diamond pickaxe to remove more obsidian if needed

WArning: bring a iron or better sWord and food or you will get killed

Warning: WHen you get out, no matter what, it will be night

Hope this helps