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Project-0078-sonic-marshmallow-cannonpdf compress

projeto de foguete
Disciplina

Arquitetura e Urbanismo

13 Documentos
Os estudantes compartilharam 13 documentos neste curso
Ano académico: 2022/2023
Enviado por:
Student
Diego Viana
Centro Universitário Fametro
0seguidor
1Envios0upvotes

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Project #78 Page 1/

Sonic Marshmallow

Cannon

Designed by:

Ritchie Kinmont

Fuel up your cannon

with rubbing alcohol,

press the igniter

button and BANG!

Combustible gas +

oxygen + spark = a

flying marshmallow!

Rev:03/04/

Sonic Marshmallow Cannon

About this project:

The Sonic Marshmallow Cannon is a Super Sonic Expert Level Project, appealing to kids

of all ages but requiring more skill and time to build than other SonicDad projects. This

cannon is designed for shooting a mini-marshmallow projectile, and is powered by

common 91% rubbing alcohol. When a lightly saturated fuel sponge is inserted into the

cannon’s combustion chamber, alcohol vapor mixes with oxygen to create a flammable

mixture. When the igniter button on the cannon is pressed, the combustible gas ignites,

producing a loud sonic boom and launching a mini marshmallow!

What’s it made of?

The Sonic Marshmallow Cannon is made from PVC pipe and fittings for the base,

combustion chamber, and barrel. The barrel heat sink is made from a drain pipe fitting.

The oxygen pump is made from a small sporting goods ball pump. A small screw is used

to prevent the marshmallow projectile from falling back into the combustion chamber.

Rev:03/04/

Sonic Marshmallow

Cannon

Drain pipe fitting

PVC pipe and fittings

Sports ball

pump

Flat head screw

What’s it made of?

The cannon fuel sponge is made from a common cleaning sponge, a metal washer, and a

piece of plastic disposable pen tube.

Sponge

Metal

washer

Disposable

plastic pen

Sonic Marshmallow

Cannon

Rev:03/04/

Project Construction

Check out my way cool Sonic Dad

gauges for project difficulty,

time, and cost. Cost of this

project depends on how many

items you have on hand. If you

purchase all items new, cost will be

higher than the approximate cost

shown.

LEVEL 6 4 HRS $25.

SHOPPING LIST

Quantity Item needed Where to find it See Figure

1 1/2” x 1/2” PVC pipe coupler (slip x slip) Home improvement store, hardware store Page 7

3 1” x 1/2” PVC pipe reducer bushing (slip x slip) Home improvement store, hardware store Page 7

1 1” x 3/4” PVC pipe reducer bushing (slip x 3/4” female pipe thread) Home improvement store, hardware store Page 7

1 1” PVC pipe plug (1” male pipe thread) Home improvement store, hardware store Page 7

1 3/4” PVC pipe plug (3/4” male pipe thread) Home improvement store, hardware store Page 7

1 3/4” PVC pipe cap (slip) Home improvement store, hardware store Page 7

1 1” PVC pipe coupling (slip x slip) Home improvement store, hardware store Page 7

1 1” PVC pipe tee (slip x slip x slip) Home improvement store, hardware store Page 7

1 1” PVC pipe tee (slip x slip x 1” female pipe thread) Home improvement store, hardware store Page 7

5 1/2” PVC pipe 45 0 elbow (slip x slip) Home improvement store, hardware store Page 8

4 1/2” PVC pipe tee (slip x slip x slip) Home improvement store, hardware store Page 8

2 1/2” PVC pipe elbow (slip x slip) Home improvement store, hardware store Page 8

3 1/2” PVC pipe cap (slip) Home improvement store, hardware store Page 8

Sonic Marshmallow

Cannon

Rev:03/04/

PVC Fittings Required

1/2” x 1/2” PVC pipe coupler

(slip x slip)

Qty. 1

1” x 1/2” PVC pipe reducer bushing

(slip x slip)

Qty. 3

1” x 3/4” PVC pipe reducer bushing

(slip x 3/4” female pipe thread)

Qty. 1

1” PVC pipe plug

(1” male pipe thread)

Qty. 1

3/4” PVC pipe plug

(3/4” male pipe thread)

Qty. 1

Use the photos below to help select your PVC fittings and pipe as indicated on the shopping list.

3/4” PVC pipe cap

(slip)

Qty. 1

1” PVC pipe coupling

(slip x slip)

Qty. 1

1” PVC pipe tee

(slip x slip x slip)

Qty. 1

1” PVC pipe tee

(slip x slip x 1” female pipe thread)

Qty. 1

Sonic Marshmallow

Cannon

Rev:03/04/

PVC Fittings Required

1/2” PVC pipe 45 0 elbow

(slip x slip)

Qty. 5

1/2” PVC pipe tee

(slip x slip x slip)

Qty. 4

1/2” PVC pipe elbow

(slip x slip)

Qty. 2

1/2” PVC pipe cap

(slip)

Qty. 3

1” x 2” long PVC pipe nipple

(make from 1” sch. 40 PVC pipe)

Qty. 2

1/2” x 1 1/2” long PVC pipe nipple

(make from 1/2” sch. 40 PVC pipe)

Qty. 13

1/2” sch. 40 PVC pipe x 5” long

Qty. 2

1/2” sch. 40 PVC pipe x 18” long

Qty. 1

Use the photos below to help select your PVC fittings and pipe as indicated on the shopping list.

Sonic Marshmallow

Cannon

Rev:03/04/

Assemble the cannon barrel by gluing a 1/2” PVC

coupling to an 18” long piece of 1/2” PVC pipe as

shown. (fig. 3)

Step 3

Sonic Marshmallow

Cannon

fig. 3

1/2” sch. 40 PVC pipe

x 18” long

Qty. 1

1/2” PVC pipe coupling

(slip x slip)

Qty. 1

fig. 4

1/2” sch. 40 PVC pipe

x 5” long

Qty. 2

1/2” PVC pipe 45 0

elbow

(slip x slip)

Qty. 5

1/2” PVC pipe elbow

(slip x slip)

Qty. 2

Press together on

both sides – DO

NOT GLUE!

1/2” PVC pipe tee

(slip x slip x slip)

Qty. 4

1/2” x 1 1/2” long

PVC pipe nipple

(make from 1/2”

sch. 40 PVC pipe)

Qty. 12

Assemble the cannon base as shown. Glue all of

the joints to assemble the base except for the

joints noted on the middle pivot tee. This will

allow for the cannon barrel angle to be adjusted

on the finished cannon. (fig. 4)

Step 4

Rev:03/04/

Attach tape to bottom of nipple

and fill half way with glue

Attach a piece of packing tape or masking tape to

the bottom of the remaining 1/2” PVC pipe nipple.

Fill the nipple half way full of high temp hot glue

as shown. Let the glue cool and remove the tape.

(fig. 8)

Step 8

Use a drill and 1/8” drill bit to drill a hole through

one side of a 1” x 1/2” slip reducer bushing. Drill

the hole 3/4” from the edge as shown. Use a 9/32”

drill bit to create a relief for a #6 flat head sheet

metal screw as shown. (fig. 5)

Step 5

Sonic Marshmallow

Cannon

Drill 1/8” hole

through one side

then use 9/32” drill

bit to create

clearance for screw

head

3/4”

fig. 5

Glue the bushing into the combustion chamber as

shown. The screw will prevent the marshmallow

projectile from falling back into the combustion

chamber during use. (fig. 7)

Step 7

Use a screwdriver to install a #6 x 3/4” long

sheet metal screw. Be sure the screw head is

below the surface of the bushing as shown. (fig. 6)

Step 6

Install #6 x 3/4”

long flat head

sheet metal screw

fig. 6

Glue bushing

into combustion

chamber

fig. 7

fig. 8

Rev:03/04/

Remove the cap on the rear of the pump. Carefully

remove the piston assembly and set it aside for

reassembly after painting. (fig. 14)

Step 14

Apply a large bead of glue all the way around the

pump outlet as shown. (fig. 12)

Step 12

Working quickly while the glue is still hot, attach

the pump, centered on the marking and hole as

shown. Hold the pump in position until the glue

has cooled. Apply a bead of glue along each side

of the joint between the pump and chamber as

shown. Be sure to keep glue off of the cap at

the rear of the pump so that it can be removed

(fig. 13)

Step 13

Sonic Marshmallow

Cannon

fig. 12

Apply glue around

the pump outlet

This part is just a little
tricky. You need to apply
enough glue to seal the
pump outlet, but not too
much, or the excess glue
may plug the inlet hole on
the combustion chamber!
This is just right... Cool!

Add glue along fig. 13

each side of

pump

Remove pump cap and

piston assembly

fig. 14

Rev:03/04/

Print the hole template from page 28, full scale

on regular printer paper. Cut the template out,

cutting on the outside lines. (fig. 18)

Step 18

Use a large bead of glue to attach a 3/4” PVC cap

and plug together in the orientation shown. (fig. 15)

Step 15

Prepare the combustion chamber for painting by

installing the 3/4” modified plug in the rear and

a 1” PVC plug in the top, just finger tight, then

loosen one turn. Use masking tape to mask the

1/2” nipple and the bore of the pump as shown.

Use a scrap piece of 1/2” PVC pipe as a handle

for painting. Clean all surfaces with rubbing

alcohol. (fig. 16)

Step 16

Sonic Marshmallow

Cannon

Glue 3/4” cap and plug

together

fig. 15

The heat sink on the cannon barrel is optional. If

you wish to add the heat sink, check the fit

between the 1” x 1/2” reducer bushing and the

drain pipe extension piece. The bushing should

fit snuggly inside the small diameter of the

drain pipe. Modify the bushing outside diameter

as needed for the desired fit. (fig. 17)

Step 17

Install plugs

Mask nipple and

pump bore

fig. 16

fig. 18

Print and cut out

hole template

fig. 17

Bushing should fit

snuggly inside

Modify outside

diameter if

necessary

Rev:03/04/

Slide the heat sink onto the cannon barrel. Twist

the barrel snugly into the combustion chamber.

Position the heat sink so there is about an 1/8”

(3 mm) gap between the heat sink and the

combustion chamber as shown. Carefully mark

the heat sink location on the barrel as shown.

(fig. 25)

Step 25

Use a hand or power saw to carefully cut the

bushing down to 1/2” (13mm) long as shown. Use

sand paper to remove burrs. (fig. 23)

Step 23

Temporarily press the bushing into the end of

the heat shield as show. DO NOT GLUE! The

bushing will be glued in place in a later step.

(fig. 24)

Step 24

We need to mark the
location of the heat sink
on the barrel so we can
glue the bushing on in a
later step, so first slide
the heat sink onto the
barrel. Then twist the
barrel into the
combustion chamber.
Now you can slide the
heat sink up to the edge
of the combustion
chamber. I like to leave
a small gap like this.
Now mark a line around
the barrel so you'll know
where to glue the
bushing... cool!

Sonic Marshmallow

Cannon

1/2”

Use a saw to

reduce bushing

length

fig. 23

Temporarily

press bushing

into heat sink

fig. 24

Mark heat sink

location on barrel

Position heat sink

with 1/8” gap

fig. 25

Rev:03/04/

Apply two coats of paint on the combustion

chamber. Spray-on truck bed liner can also be

used on the combustion chamber, barrel, heat

sink, and base feet for a durable, textured

finish. (fig. 28)

Step 28

Remove the bushing from the heat sink and use

PVC cement to attach it to the barrel on the

marked line as shown. Mask the areas shown on

the heat sink and barrel and clean with rubbing

alcohol to prepare for painting. (fig. 26)

Step 26

Apply two coats of spray paint for plastics on

the base, the color of your choice. (fig. 27)

Step 27

I like to use spray-on truck bed liner
on the combustion chamber, barrel,
heat sink, and base feet because it
gives you a tough finish but also has
some texture... cool! You can also use
just a nice gloss or flat black spray
paint. It’s your cannon - you get to
decide!

Sonic Marshmallow

Cannon

fig. 26

Glue bushing

to barrel on

marked line Mask these

areas for

painting

fig. 27

Mask bottom

1/2” of each leg

Apply two coats

of paint on the

combustion

chamber

fig. 28

Rev:03/04/

Disassemble the electric lighter. Most lighters

have a few screws holding the housing together.

(fig. 36)

Step 36

Working quickly while the cement is still wet,

carefully insert the barrel into the heat sink

piece as shown. (fig. 33)

Step 33

Position the heat sink flush with the bushing on

the barrel. Before the glue sets, check the

alignment at the back of the barrel to be sure

it’s centered in the open end of the heat sink.

(fig. 34)

Step 34

Sonic Marshmallow

Cannon

Remove the masking on the combustion chamber

and re-assemble the air pump. Glue the three

caps to the base as shown. Assemble the cannon

by pressing the barrel into the combustion

chamber, then pressing the assembly into the

base. Be sure these three parts are pressed

together only – DO NOT GLUE! (fig. 35)

Step 35

Inset barrel into

heat sink

fig. 33

Position heat

sink edge flush

with bushing

fig. 34

Remove screws

to disassemble

lighter

fig. 36

Glue caps to base

Press barrel,

combustion chamber,

and base together

WITHOUT glue

fig. 35

Rev:03/04/

Use an X-acto knife to cut a small hole in the

center of the end of the igniter button by

twisting the knife point. Use a bead of hot glue

to secure a metal thumbtack in the end of the

button as shown. (fig. 40)

Step 40

Remove the piezoelectric igniter unit with wires

as shown. Bend the wires oriented down and

apply glue around the wires to secure them to

the igniter, creating a wire strain relief. Then

twist the wires as shown. (fig. 37)

Step 37

Drill a 5/32” (4mm) hole in the center of the 1”

plug. Use an X-acto knife to scrape off the paint

and rough up the surface on the plug wall above

the hole as shown. Removing the paint will help

the glue to adhere to the plastic. (fig. 38)

Step 38

Feed the igniter wires through the hole in the

plug. Use a large bead of glue to attach the

igniter as shown. Hold the igniter in position until

the glue cools. (fig. 39)

Step 39

Sonic Marshmallow

Cannon

Apply glue on

wires to secure

to igniter – then

twist wires

fig. 37

Drill 5/32” hole

in center

Scrape the paint in

this location for

mounting the

igniter unit

fig. 38

Feed wires

through hole and

attach igniter

fig. 39

Use X-acto to

create hole then

glue thumbtack

in place

fig. 40

Rev:03/04/

Avalie para ter melhores recomendações

Project-0078-sonic-marshmallow-cannonpdf compress

Disciplina: Arquitetura e Urbanismo

13 Documentos
Os estudantes compartilharam 13 documentos neste curso

Universidade: Centro Universitário Fametro

Avalie para ter melhores recomendações
Project #78 Page 1/28
Sonic Marshmallow
Cannon
Designed by:
Ritchie Kinmont
Fuel up your cannon
with rubbing alcohol,
press the igniter
button and BANG!
Combustible gas +
oxygen + spark = a
flying marshmallow !
© 2016 SonicDad Enterprises All rights reserved
Rev:03/04/16
Sonic Marshmallow Cannon
About this project:
The Sonic Marshmallow Cannon is a Super Sonic Expert Level Project, appealing to kids
of all ages but requiring more skill and time to build than other SonicDad projects. This
cannon is designed for shooting a mini-marshmallow projectile, and is powered by
common 91% rubbing alcohol. When a lightly saturated fuel sponge is inserted into the
cannon’s combustion chamber, alcohol vapor mixes with oxygen to create a flammable
mixture. When the igniter button on the cannon is pressed, the combustible gas ignites,
producing a loud sonic boom and launching a mini marshmallow!

Os estudantes também visualizaram

Outros documentos relacionados