I live in a small apartment and have limited space in my room.
Therefore it is preferable not to have a permanently erected spray booth.
A collapsible one would be ideal.

I've seen spray booths made from plywood, large cardboard boxes and big plastic containers.
I want one that is compact, collapsible, inexpensive and workable.
Then it struck me......why not construct the spray booth out of the box where the fan came in?

The fan's box.


The fan.
It's a blower fan, its fan blades are like a squirrel cage and it's supposed to draw out fumes more effectively.


The back of the fan.
It has a 4" diameter exhaust so I'm gonna be looking for a 4" flexible hose to attach to it and lead it to the window.
The fan doesn't come with a plug, just a 1 metre long wire, so I connected my own 3-pin plug.


The orientation of the fan.
I'm no airflow expert so I tried putting the fan upright and also tilted it at an angle.
I tested both orientation with a dangling piece of tissue and saw no difference in the suction power.
So I decided to leave the fan at a tilted angle because:
- I need not construct something to keep/hold the fan upright
- I get more space within the spraying area since the fan is tilted back


Closing up the back.
I marked, bent, fold and cut the flaps of the box to conform to the shape of the back of the fan.
At the same time trying to preserve as much of the box material as possible since I want it to be transformable back to its original state......a box.


Back of the booth.


Tissue Testing.
I'm still thinking of a way to keep the front flaps of the box opened up at an angle.
For the time being, I shall leave em like this while conducting the tissue test.


Without a filter.


With a tissue as a filter.


Reinforce frequently bent places with duct tape.


Fan switch with indicator light.


Keeping the front flaps open.
Bent out of a 3mm aluminium wire(bought fr Daiso).


Airbrush Holder
Bent out of a 6mm insulated aluminium wire(bought fr Daiso).


After using the booth for the first time, I felt that the hanging airbrush holder isn't too convenient to use. It hinders the filling/mixing/stirring of paint.
So I took it down, unbent it and converted it into the:
Nexus Airbrush Docker
Features
- sleek design
- stable base
- mobile structure
- easy to dock/undock
- paint cup is held horizontal for easy paint mixing


Booth Lighting
Just place a tube of OEM flourescent lighting across the flaps.


Fan Outlet.
Secure the aluminium tubing to the fan outlet with a ring tightener(like those u'd use on taps).


I shall shamelessly call it the
Nexus Spray Box Ver.1
It's a booth and it's a box!




Illuminated Mode


Commando Mode


This is how the exhaust runs in my room.


And yes, it can be folded back into a box with the fan and various accessories kept inside.


What from Where:
blower fan - Hean Lee
aluminium tubing - Hean Lee
ring tightener - hardware shop
duct tape - hardware shop
bendy aluminium wires - Daiso
fan switch - Sim Lim tower (aik chin)

 IP Address: 202.156.177.11

WOW!! Very impressive!!
Thx for posting this... Enlightened me a lot!!

 IP Address: 220.255.111.228

wow, looks cool yah... save place n money also. like ur method of doing the booth

 IP Address: 202.73.107.71

... I like you spray booth concept. But I just wonder don't you need to connect it to an air pipe/hoist to divert the fumes out of the room?

 IP Address: 58.185.43.146

wow~~~ brilliant idea and excellent construction..
the fan look power

 IP Address: 58.185.140.249

great Wrote:... I like you spray booth concept. But I just wonder don't you need to connect it to an air pipe/hoist to divert the fumes out of the room?

haha,havent buy yet...w8ing for a consolidated kinda MO

 IP Address: 202.156.177.11

Excellent article!
Just in time, I've been thinking of building a spray booth recently.

The choice of fan is correct, IMHO, as the centrifugal fan does not have the motor components in the airflow path; risk of explosion.

For the more technically inclined, an article on sizing the fan, ductwork and static pressure considerations:

Spray Booth Design And Fan Selection - Klaus Raddatz

He says that flexible ducting is very restrictive to airflow, probably due to the accordion folds, me thinks.

I'd sooner spend my own money helping new modellers than to spend at an undeserving shop.

 IP Address: 203.125.98.29

too technical for me liao
i even thought of being even more cheapo but using those umbrella condoms and connect em together...but it's size is diff and i believe they will flutter noisily when the fan is on

 IP Address: 202.156.177.11

a suggestion, maybe can stick some short velcro strips along your flaps to make it a really quick-setup-tear down configuration ?

Anyway good idea for space constraints !

 IP Address: 219.75.16.191

neXus Wrote:too technical for me liao

Yeah, me too.
Hoped there was an airflow engineer in this forum to help us decipher that gibberish.

I'd sooner spend my own money helping new modellers than to spend at an undeserving shop.

 IP Address: 203.125.98.29