Руководство по строительству

If you want to do a job, like Station Engineer, you need to know how to build and deconstruct stuff.

Basic Tools

Before you can begin any construction or deconstruction you need to gather a few useful tools.

These tools can be found in any blue mechanical toolbox on the station. They can also be made in an Autolathe or dispensed from a YouTool -vending machine.

Crowbar

Screwdriver

Welder

Wirecutters

Wrench

Materials

To build anything, you need materials. The two main materials are Metal and Glass , these can be found around the station, ordered from the Quartermaster, mined from the Mining Outpost or salvaged from parts of the station itself. If the Botanists are growing tower-caps, you will have Planks to build with.

Once you have your tools and materials, you can starting building.

Metal

Metal

Местонахождение: Engineering, Auxiliary Tool Storage, E.V.A., Robotics,
Atmospherics, Mining Station. Shaft Miners have the ability to smelt more from iron ore.
Используется для: Constructing various things from supportive elements to decorations
Стратегия: Hold in active hand and activate to start building

Описание

List of things you can make with having Metal in your hand and activating it:

• Stool
• Chair
• Comfy Chair
• Office Chair
• Bed (2 metal)
• Table parts (2 metal)
• Rack parts
• Closet (2 metal)
• Canisters (10 metal)
• 4x Floor tiles
• 2x Metal rods
• Computer frame (5 metal)
• Wall girders (2 metal)
• Airlock assembly (4 metal)
• Machine frame (5 metal)
• Turret frame (5 metal)
• APC frame (2 metal)
• Grenade Casing (1 metal)
• Iron Door (20 metal)

Things you can do with it in your hand:

• Finish wall girders into walls.
• Repair broken walls.
• Add armor to turret frames.
• Refill an Exosuit Fabricator, Autolathe or Protolathe.

Glass and Reinforced Glass

Glass and Reinforced Glass

Местонахождение: Small stacks exist in Engineering, Auxiliary Tool Storage, E.V.A.,
Atmospherics and Robotics. Shaft Miners have the ability to smelt more.
Используется для: Constructing windows and other things
Стратегия: Hold in active hand and activate to start building

Описание

Here's the list of things you can make with having glass/reinforced glass in your hand and activating it:

• Glass:
  • one directonal glass panel
  • Full glass panel (2 sheets)
  • Glass Lenses to grenade casings.
  • Refill robotic fabricator.
  • Refill Circuitprinters.
  • Glass shards may be reformed into glass sheets by welding it with a Welding Tool.
• Reinforced Glass:
  • one directional reinforced glass panel
  • Full reinforced glass panel (2 sheets)
  • Part of AI Core assembling.
  • Adding windows into airlocks.

Requires
1 x , 1 x

 Use rods on glass

Plasteel/Reinforced Metal

Plasteel/Reinforced Metal

Местонахождение: A stack exists in Engineering, E.V.A. and Robotics.
Shaft Miners have the ability to smelt more with iron and plasma ores.
Используется для: Reinforcing walls, mechs, building an AI Core
Стратегия: Hold in active hand and activate to start building

Описание

Plasteel is an alloy of plasma and iron.

List of things you can make having plasteel in your hand and activating it:

• AI core (4 metal)
• Reinforcing, repairing and finalizing walls

Smelted with a combination of iron ore and plasma ore at the Mining furnace.

Rods

Rods

Местонахождение: Stacks exist in Engineering, Auxiliary Tool Storage, E.V.A..
More can be made from Metal sheets.
Используется для: Constructing grilles and reinforcing
Стратегия: Hold in active hand and use it on things

Описание

Here's the list of things you can make with having rods in your active hand:

• Grille (By clicking in your hand)
• Lattice (For floors, by clicking on the tile)
• Reinforcing tables
• Reinforcing floors (By clicking on the tile)
• Reinforcing glass into reinforced glass. (Have rods in hand while clicking glass sheet)
• Can be turned back into metal sheets by being welded with a Welding Tool

Requires
1 x

 Use metal and click "2x metal rods" (makes two sets of rods)

Floor Tiles

Floor Tiles

Местонахождение: Ready stacks can be found nowhere, can be made from metal or removed from the floor with a crowbar
Используется для: Constructing floors
Стратегия: Hold in active hand and use it on lattices or a floor without plating

Описание

• Floor

Requires
1 x

 Use metal and click "4x floor tiles" (makes 4 floor tiles)

Lattice

Requires
1 x

The basic base for all types of construction, this is placed directly in space.
Place by having rods in your hand, and clicking on a empty space tile.

Plating

Requires
1 x

The basic floor which you put things like wires and pipes upon, 'all' floor is built ontop of this.
Place by having the floor tile in your hand, and click on a lattice.

Steel Floor

Requires
1 x

This is the basic "nice" floor, this floor should be considered used in all public areas, hence why 
there's none of these in maintenance tunnels.
 Place by having the floor tile in your hand, and click on a Plating-tile.  

Floor deconstruction:

Requires
, For light floors:

 For all floors, use a crowbar on a floor tile to remove it

Light Floor

Requires
1 x , 1 x , 5 x

 Assuming there already is a plating
 Use the wire on glass
 Use the metal on the tile you get
 Place the light tile on the plating

Light Floor deconstruction:

 You can further dismantle the light floor tile:
   Use a crowbar on the light tile to remove the metal.
   Use wirecutters on the resulting tile to separate wires from glass.

Planks/Logs/Wood

Planks/Logs/Wood

Местонахождение: Ready stacks can be found nowhere, can be made from deconstructing
tables or growing Tower caps and cutting them up.
Используется для: Constructing various things from sandals and coffins to decorations
Стратегия: Hold in active hand and activate it to start constructing

Описание

Obtainable by cutting Tower cap logs with a hatchet.

• Wooden Sandals
• Table parts (2 planks)
• Wood floor tile (4 with 1 plank)
• Wooden chair (3 planks)
• Wooden barricade (5 planks)
• Wooden door (10 planks)
• Coffin (5 planks)
• Bookcase (5 planks)

Walls

Normal Wall

This is the standard type of wall found around the station, they are easy to construct and remove but are not as strong as reinforced walls. They also come in the hidden variety.

Object	Requires	Uses
Wall	x4	Keeping people out. Keeping people in. Keeping people from going places.
Stand where you want the wall. Click the metal in hand. Select girder from the menu. Click the girder.

Requires
4 x

 Click the metal in your hand to open the construction panel,
 Choose 'Build wall girders' from the list
 Use the remaining 2 sheets of metal on the girders

Wall deconstruction:

Requires
, (Or )

 Weld off the plating
 Wrench the girders apart
 (Alternately, you can use a Crowbar to dislodge the girders and drag them out of the way)

Normal Hidden Door

Object	Requires	Uses
Hidden Door	x4	Click to open. Almost undetectable escape route. Otherwise, same as normal wall.
Stand where you want the door. Click the metal in hand. Select girder from the menu. Click the girder holding a crowbar. Click the girder holding the metal.

Requires
4 x ,

 Click the metal in your hand to open the construction panel,
 Choose 'Build wall girders' form the list
 Use crowbar on girders and wait a few seconds for the girders to dislodge.
 Use the remaining 2 sheets of metal on the girders

To turn a wall into a hidden door, follow the deconstruction guide for the wall type until the final wrenching, and instead proceed from the "Use crowbar on girders" line above.

Hidden Door (Regular or Reinforced) deconstruction:

Requires
,,

 Screwdriver
 Welder
 Wrench

Reinforced Wall

This is the reinforced type of wall found in secure areas of station, they are reasonably simple to construct, but are very time consuming to remove. They also come in the hidden variety.

Object	Requires	Uses
Reinforced Wall	x2 x2	Keeping people in and out of high security areas. Keeping people from going into secure places.
Stand where you want the reinforced wall. Click the metal in hand. Select girder from the menu. Click the girder with the reinforced metal. Click the girder again with the last piece of reinforced metal.

Requires
2 x , 2 x

 Click the metal in your hand to open the construction panel,
 Choose 'Build wall girders' form the list
 Use the reinforced metal on the girders to reinforce them
 Use the last reinforced metal sheet on the reinforced girders to finish the wall

Reinforced walls deconstruction:

Requires
, , , ,

 Wirecutters.
 Screwdriver.
 Welder.
 Crowbar.
 Wrench.
 Welder.
 Crowbar.
 Screwdriver.
 Wirecutters.
 Wrench.

Reinforced Hidden Door

Object	Requires	Uses
Reinforced Hidden Door	x2 x2	Almost undetectable escape route. Otherwise, same as reinforced wall.
Stand where you want the door. Click the metal in hand. Select girder from the menu. Click the girder holding a crowbar. Click the girder holding the reinforced metal.

Requires
2 x ,2 x ,

 Click the metal in your hand to open the construction panel,
 Choose 'Build wall girders' form the list
 Use crowbar on girders and wait a few seconds for the girders to dislodge.
 Use the reinforced metal on the dislodged girders twice to finish it

Windows

Normal/Reinforced Windows

Windows can be placed in two ways: Full or One Direction. Full is basically a weaker, see-through and shoot-through wall, while one direction allows the square it is on to be entered from any direction, except the direction it's facing.

Object	Requires	Uses
/ Windows/Reinforced Windows	x2 / x2	Full: See Wall. Usually only used if you don't have enough for 2-4 one-directionals or the metal for a wall. One Direction: Stops movement only from the way it faces.
Click the glass in hand. Select Full or One Direction from the menu. Drag where you want it. Rotate to the direction you want, if one directional. Click holding screwdriver.

amount needs to be corrected

One-Directional

Requires
1 x ,

 Click the glass pane
 Click the "one direct" button
 Right-click the new pane and rotate it
 Use the screwdriver to fasten it down

 Alternatively:
 Use the glass on a grille.
 Right-click the new pane and rotate it
 Use the screwdriver to fasten it down

Window deconstruction:

Requires
,

 Screwdriver to unscrew the window from the floor.
 Wrench to deconstruct the window.

Hitting the pane repeatedly with a blunt item will smash it into a glass shard.

Reinforced Window deconstruction:

Requires
, ,

 Screwdriver to unsecure the glass from the frame.
 Crowbar to pop the glass out.
 Screwdriver to unscrew the frame from the floor.
 Wrench to deconstruct the window.

Hitting the pane repeatedly with a blunt item will smash it into one set of metal rods and a glass shard.

Full

Requires
2 x ,

 Click the glass pane
 Click the "full" button
 Use the screwdriver to fasten it down

Reinforced Windows

Reinforced Windows come in 2 types: Full and One Direction. Full is basically a weaker, see-through and shoot-through wall, while one direction allows the square it is on to be entered from any direction, except the direction it's facing.

Object	Requires	Uses
Windows	x2	Full: See Wall. Usually only used if you don't have enough for 2-4 one directions or the metal for a wall. One Direction: Stops movement only from the way it faces.
Click the reinforced glass in hand. Select Full or One Direction from the menu. Drag where you want it. Rotate to the direction you want, if one directional. Click holding screwdriver.

One-Directional

Requires
1 x , ,

 Click the reinforced glass pane
 Click the "one direct" button
 Right-click the new pane and rotate it
 Screwdriver (Secure frame to floor.)
 Crowbar (Pop pane in.)
 Screwdriver (Secure pane.)

 Alternatively:
 Use the reinforced glass on a grille.
 Right-click the new panel and rotate it
 Screwdriver (Secure frame to floor.)
 Crowbar (Pop pane in.)
 Screwdriver (Secure pane.)

Full

Requires
2 x , ,

 Click the reinforced glass pane
 Click the "full" button
 Screwdriver
 Crowbar
 Screwdriver 

Grilles

Grilles are usually used in combination with directional windows. They allow gases and energy rounds to pass through them, but stop other objects. They can also be electrified for high security areas.

Object	Requires	Uses
Grille	x2	Keeping people in or out. Securing an area with electrified grilles.
Stand where you would like the grille to be placed. Click the metal rods in hand.

Requires
2 x

 Stand where you wish the grille to be placed
 Click on the stack of 2 rods with the hand you have them in

Grille deconstruction:

Requires
or

 Use wirecutters twice to destroy the grille OR
 Use screwdriver to unfasten it

First method destroys it, giving two sets of metal rods. Wirecutters will remove it instantly, attacking the grill will instead kick it, requiring a good few kicks. Second loosens the grille, allowing it to be pulled around. Destroying the grill in this method will leave behind a still-secured section of broken grill which may be walked over but is not aesthetically pleasing. Wirecutters will not instantly remove this remnant. However, using a lit welder will destroy it instantly.

Файл:Windoor.png Window-door (Windoor)

Requires
5 x , 2x , 1x , , , , 1x

 Click the reinforced glass pane
 Click the "Windoor" button
 Wrench
 Plasteel (Optional: To create a secure windoor)
 Cable
 Airlock Electronics
 Crowbar

Wall Mountings

APC

Requires
2 x , 1x , 1x Power Control Module, , 1x , ,

 Use the metal and make an APC frame 
 Use the frame on the wall you want the APC on.
 Fit it with the wire coil.
 Fit it with the Power Control Module.
 Screwdriver the electronics into place.
 Add the Power Cell.
 Crowbar shut. It starts ID locked, with the cover engaged and the main switch turned off.

APCs may only be placed in areas which have been defined as a Station Area using the Chief Engineer's Station Blueprints. If you're trying to replace a broken APC, you can get the cover off by breaking it, likely with a fire extinguisher.

APC deconstruction:

Requires
, , , ,

 Swipe Card to unlock APC. Alternatively, if the APC is broken (tilted and cracked cover),
 try using a fire extinguisher to smash off the cover, allowing access to the battery.
 Remove Power Cell.
 Screwdriver to unsecure electronics.
 Crowbar to lift floor tile in front of APC
 Wirecutters to remove cables.
 Crowbar to remove Power Control Board.
 Welder to remover from wall.
 Wrenching the frame that is now detached from the wall de-constructs it to two metal sheets.

Air Alarm

Requires
2 x , 1x , 1x Air Alarm Electronics,

 Use the metal and make an air alarm frame.
 Use the frame on the wall you want it on.
 Put in the electronics.
 Wire it with 5 cable pieces.
 Screwdriver to close.

Air Alarm deconstruction:

Requires
, , ,

Open cover with screwdriver.
Cut all the wires using wirecutters.
Cut the remaining wires by clicking on the airalarm with wirecutters.
Pry out the circuit using the crowbar.
Remove the frame from the wall using the wrench.

Fire Alarm

Requires
2 x , 1x , 1x Fire Alarm Electronics,

 Use the metal and make an air alarm frame.
 Use the frame on the wall you want it on.
 Put in the electronics.
 Wire it with 5 cable pieces.
 Screwdriver to close.

Fire Alarm deconstruction:

Requires
, , ,

Open cover with screwdriver.
Cut the wires by clicking on the firealarm with wirecutters.
Pry out the circuit using the crowbar.
Remove the frame from the wall using the wrench.

Other

Airlock

Requires
4 x , 1x , , , 1x ,
Optional
1x ,

	Use the metal and make an Airlock Assembly
	Wrench it in place
	Use pen to name the Airlock (OPTIONAL)
	Add reinforced glass to make a glass airlock (OPTIONAL)
	Add wires
	Unlock the airlock electronic board with an ID
	Use the airlock electronic board and set the access level
	Add the airlock electronic board to the airlock frame.
	Screwdriver to finish

Airlock deconstruction:

Cannot be done to an emagged airlock! RCD deconstruction must be used for that. It is possible to build a new airlock over the emagged one.

Requires
, , , , ,

 Screwdriver the door.
 Use multitool and wirecutters to disable everything except the doorbolts as detailed here.
 (Doorbolts must be up for this to work.)
 Weld the door shut.
 Crowbar the electronics out. (if the door is electrified, this won't work for some reason)
 Wirecut the wires out.
 Unsecure it with a wrench.
 Weld it to deconstruct to metal plates.

Computers

Requires
5 x , 2x , 1x (5 pieces), , , 1x

 Use the metal to open the construction panel
 Choose Computer frame
 Wrench it inplace
 Insert the Circuitboard of your selection
 Screwdriver
 Wires
 glass
 Screwdriver to finish

Computers deconstruction:

Requires
, , , ,

 Screwdriver to detach the screen.
 Crowbar to pry off the screen.
 Wirecutters to cut the cables.
 Screwdriver to detach the circuit lid.
 Crowbar to pry out the circuit.
 Wrench to detach the frame.
 Welder to disassemble the frame.

Returns all components used in construction.

Machines

Their construction is detailed in the machine construction guide.

Machine deconstruction:

Requires
, , ,

 Screwdriver to open the cover.
 Crowbar to pry out the circuit.
 Wirecutters to remove the wires.
 Wrench to disassemble the frame.

Usually returns all or most components used in construction. Some components may become broken.

Security Camera

Requires
1 x Camera Assembly, 1x , , ,

 Place the camera assembly on the tile where'd you like the camera to be.
 Wrench it into position
 Weld it to the wall.
 Add any additional upgrades. (OPTIONAL)
 Add wire.
 Screwdriver the camera to complete it.
 Set camera network (default is SS13)
 Set camera direction

For upgrades, insert solid plasma for EMP proofing, a carrot for X-Ray and a proximity sensor for Motion.

Security Camera deconstruction:

Requires

	Screwdriver the camera to open the back panel.
	Use your wirecutter to cut all the wires. (Cutting the alarm wire is optional)
	Use your welder to unweld the camera from the wall.
	Wrench the camera to unattach it from the wall.
	Crowbar the camera assembly to remove any upgrades.

Turret

requires
7 x , , , , 1 x any energy-based gun , 1 x proximity sensor

 Build a turret frame from metal
 Use a wrench to secure the turret frame(it can be moved around before being secured)
 Use metal on the turret frame to build the cover
 Use a wrench on the frame to bolt the cover
 Add the gun
 Add the prox sensor
 Use a screwdriver to secure it all
 Use more metal on the frame
 Finally use a welder to secure the second layer of metal

Robots, Cyborgs and Mechs

Their construction is described at: Robots, Cyborgs and Mechs -pages.

Disposal Pipes and Machinery

Requires
1 x Disposal Pipe/Machine, , ,

 Retrieve the pipe/machine from the Disposal Pipe Dispenser (found in Atmosia)
 Crowbar floortile if exists to access plating
 Move pipe over plating, rotate and flip using the rightclick menu
 Wrench pipe
 Weld pipe

Disposal Pipes deconstruction:

Requires
,

 Welder on pipe to remove its joints
 Wrench to detach it from the plating

Note: You can then click and drag the pipe segment onto the disposal pipe dispenser to delete it

Disposal Machinery deconstruction:

Requires
, ,

 If Disposal Bin, turn off the pump
 Screwdriver to remove power connection
 Welder on machine to remove its joints
 Wrench to detach it from the plating

AI Core

Requires
4 x , 2x , 1x , , , 1x , optional:

 Build Frame from 4 reinforced sheets 
 Wrench into place 
 Add Circuit board 
 Screwdriver 
 Add wires 
 Add brain placed in an MMI (only if you want a NEW AI) 
 Add reinforced glass
 Screwdriver

Solar Panels and Trackers

Requires
, , 2 x or 2 x
Optional

Solar Panels and Trackers deconstruction:

	Place the solar assembly on where you want to construct your solar panel/tracker. To connect it to a wire you must construct it under a wire node.
	Wrench the solar assembly into place.
	Add the electronics if you want to create a solar tracker. (OPTIONAL)
	Finish the construction by placing glass, or reinforced glass, into the assembly frame.

Requires
,

 Take out the panel with a crowbar.
 If you are deconstructing a tracker, you can take out the electronics with your crowbar (OPTIONAL)
 Unwrench the leftover assembly from it's place and you will be able to move it.

Файл:Lightfixture.png Light Fixture

Requires
2 x , 1x , light tube/bulb,

 Build frame from 2 metal sheets (or 1 metal sheet for small lights)
 Place frame on wall
 Add wires
 Screwdriver
 Add light tube (or light bulb for small fixtures)

Furniture

Chairs

Object	Requires	Uses
Chair/Stool	x1	Decoration Electric Chair Chair Cuffing Buckling in
Stand where you want the chair. Pick up some metal. Click the metal in hand. Select chair from menu.

Tables

Object	Requires	Uses
Table or Wooden Table	x2 or x2	Decoration. Tabling. Ghetto Surgery. Placing items on.
Pick up some metal (or planks) Click the metal (or planks) in hand. Select table parts from menu. Use the table parts on themselves, on the tile you want to make the table.

Table deconstruction:

Requires

 Wrench to disassemble the table.

Object	Requires	Uses
Reinforced Table	x2 x4	A table with added security
Follow the instructions above to create metal table parts Use rods on table parts Use the table parts on themselves, on the tile you want to make the table.

Reinforced Table deconstruction:

Requires
,

 Welder to weaken the table.
 Wrench to disassemble it.

Bookcase

Requires
5 x , ,

 Construct a frame with 4 wooden planks.
 Wrench the frame into place.
 Add a plank to the frame to make a shelf.

Bookcase deconstruction:

Requires
, ,

 Crowbar out the shelf.
 Unsecure the frame with a wrench.
 Break apart the frame with a crowbar.

Recharge Station

Requires
, , , ,

 Unlock the charger with an ID
 Screwdriver to open the cover.
 Wrench to dislodge the internal plating.
 Wirecutters to remove the wires.
 Crowbar to remove the components.

Usually returns all or most components used in construction. Some components may become broken.

Locker

Requires

 Open the locker.
 Weld the locker.

Wiring

You cannot construct wires. They are only available right now from yellow toolboxes, or scattered about the station's construction- and storage-areas.

• All wires are electrified if connected to a power net (a charged SMES battery is attached to the wire), and you will get fried if you touch them.
• Insulated gloves negate any electrical shocks to the player.

Let's say you have the following situation to fix:

How Do I Wire?

Wires are directionally dependent on where you set them down, and will apply adjacently to each "tile" you are standing by. Wires will always face inwards to you, sort of like this:

This image was made by standing in the center tile with a wire coil in hand and clicking on all 8 surrounding tiles.

In situations where you can't place a wire like this you have an alternative way. Just stand on a tile, face the direction you want it to go (ctrl+arrow key) and click the tile you're standing on.

This image was made by standing on the tile, pressing ctrl + left arrow key and then clicking the tile. The cable coil was in my active hand.

If you ever make a mistake with a wire, use the wirecutters to trim them! Simple as that. Wear insulated gloves if you value your life.

Knot Wiring

Let's say you have a situation that you need to fix:

The easiest method of wiring is knot-wiring. Also known as unsmooth or non-smooth wiring.

Fixing this is simple:

-> -> . Done.

You just position yourself properly and click the tile to lay down wire. Make sure you click on the plating (floor) and not the already laid wire. This is because:

+ =

This might look about the same as in the previous image, however it's not. In the previous image your ending result had three pieces of wire, one going from the east to the center, one going from the north to the center and one going from the west to the center. In this situation you have two pieces of wire. One going east to west and one going north to center. The two wires don't meet in the center, because the horizontal wire is going east-west without it having a point (or knot) in the center.

Smooth Wiring

Just click on wires that are "knotted" at on end (you just need to click on the wire, not the little knotted dot). Smooth wires do not power other wires on their same tile. So make sure to apply to the source wire, or the connective tip.

To fix this situation with smooth wire you'll have to follow the steps:

-> -> -> . Done.

In this method you first lay one cable to go from one of the directions to the center (image 1). You then position yourself in another direction and click on the already laid wire piece (and not the floor!). This will make the already placed piece and the new piece combine into one smooth piece of wire (image 2). You then place another piece to go from the last remaining direction to the center (image 3) and click it from the last direction to make a 2nd smooth piece of wire (image 4).

This method often uses up more wire than dot-wiring, but it's prettier and usually preferred.

Wire-net Reset

This is Byond's attempt to "reset" the whole power net in order to deal with new/removed wires that shift the power value of a whole system. It will cause APCs to stop charging for a moment, and in huge nets it can shut down the charging of all APCs for a while.

Don't mess with wires unless you have to, it causes problems to everyone in both OOC (potential lag) and IC (power loss).

Pipes

How Do I Get Pipes?

Pipes are only constructed from Pipe Dispensers in Atmospherics. To use a Pipe Dispenser, follow these steps:

1. Put Dispenser in a powered area.
2. Wrench Dispenser to lock it into place.
3. Click on the Pipe Dispenser with an empty hand and select the pipes you wish to use.
4. You have a pipe to play with now.
5. Wrench Dispenser to make it mobile once more.

Placing and Removing Pipes

Disposal Pipes

1. Rotate the pipe to the direction you wish the pipe to be in.
2. Wrench the pipe to the ground.
3. Use a lit welder to fuse the pipe to the ground.

Gas Pipes

1. Rotate the pipe to the direction you wish (pay attention to gas pumps as they are direction dependent).
2. Wrench into place.
3. Turn on the pipe, if necessary.

How to Remove a Pipe

1. Perform the step you used to set the pipe into place in reverse (make sure the pipe is powered off).
2. Brace for any junk that might blast out of the pipe.