for this project I’m going to show you
how to make screw lock sugar rockets
these PVC rocket motors are powerful and
designed to help you reload and relaunch
your randomizer rocket within minutes
they’ve got a built-in parachute
ejection system which will help bring
your rockets back safely and the best
part is you can make as many as you want
for about a dollar each let’s start this
project with a box of baking soda a bag
of powdered sugar and 100 percent
potassium nitrate stump remover it’s
really important to grind the potassium
nitrate into a really fine powder and
the easiest way to do that is with a
small blender like the one I found at a
local thrift shop for five dollars
potassium nitrate is hygroscopic meaning
that over time it’ll absorb moisture out
of the air which is exactly opposite of
what we want for our rocket fuel to make
sure your nitrate salt is as dry as
possible try sprinkling the fine white
powder on something like a baking pan
then sticking it in the oven I let mine
bake at 300 degrees Fahrenheit for
around thirty minutes to drive off all
the moisture and prepare for its destiny
is my hobby rocket fuel while we’ve got
that warming let’s move on to modifying
a few 3/4 inch by 12 inch PVC risers
which you can find in the sprinkler
section of your local hardware store I
clamped a piece of wood to my chop saw
exactly five inches away from the blade
which gives me the option to line up the
threaded edges and cut the tubes cleanly
at exactly five inches long every time
you can flip the riser around and do the
same thing with the other threaded end
as well this way you get to 5 inch motor
casings from one riser which will save
you time and money if you’re making more
than one alright let’s move on to
packing the casings and for that you’re
going to need a ten inch oak dowel this
will be a ramming rod and a template as
well and the markings you can see on my
stick are designed to make the
equivalent of an e 45 v rocket motor
mark align precisely in the center of
the dowel at 5 inches and measuring from
this line you’ll need to mark the dowel
at 3/4 of an inch two and a half inches
5/16 of an inch in three-quarters of an
inch
take time to be precise because the
performance of your rocket motor depends
on it these markings are for the
different compositions we’ll be adding
in just a minute and to double-check
you’ve done it right you should have
eleven sixteenths of an inch left at the
tip now depending on how and when your
PVC risers were manufactured they may be
a little too small for the oak dowel to
push all the way through if that’s the
case just use a little sandpaper to
knock down the sides of the dowel a bit
you can slide it all the way into the
casing with little to no gap at the end
now before we pack the rocket fuel it’s
important to rough up the insides of the
casings a bit and for that I’ll be using
a flat metal file the strength of your
clay nozzles and bulkheads will increase
dramatically just by scoring the bottom
inch of your casings on the inner walls
and the deeper you can get the scratches
the better it’ll hold do the same thing
with the top inch of the casing as well
then set the tube firmly on a hard
surface because the time has come to
pack powder the composition I’m using
for my shooter Rockets is a mixture of
these three powders the first glass is
filled with a finely powdered bentonite
clay and we’ll be using that first the
cheapest and easiest way to get
bentonite clay is by going to the dollar
store and picking up a bag of unscented
kitty litter use your hobby blender to
grind a handful for around thirty to
forty seconds when your clay is finely
powdered use a funnel to add some to the
tube hold the tube firmly to a hard
surface then hammer the top of the
ramrod as hard as you can I like to use
a rubber mallet you’ll want to give it
around five to ten good whacks to make
sure the clay is nice and compacted go
ahead and repeat the process and when
the first line on the ramrod lines up
perfectly with the top of the riser your
first clay plug is done let’s move on to
adding the white mix next white mix is
the pyrotechnic fuel that’ll make the
rocket fly and is simply a mixture of
65% potassium nitrate which is the stuff
we just finished drying in the oven and
35% powdered sugar by weight shake the
mixture for a couple of minutes to get
the sugar and salt as intimate as
possible I’m shaking by hand because
it’s a good way to help avoid dangerous
amounts of heat or friction from
building up remember that this is a
highly flammable mixture it needs to be
protected and treated with respect
because you don’t want it going off
accidentally with the fresh white powder
thoroughly mixed go ahead and round the
fuel into the casing until the second
mark on the dowel lines up perfectly at
the top when it does you’re ready for
cup number three this third powder is
the time delay mix that will control
when the parachute gets ejected the
delay mix burns around one sixteenth of
an inch per second and you can easily
make it by using 20 grams of the white
mix sprinkled with three grams of
regular household baking soda use a
digital scale to make sure your
composition is as accurate as possible
then transfer the delay mix into a
plastic party cup and gently swirl it
around for about a minute to make sure
the baking soda gets thoroughly worked
in
five sixteenths of an inch of this
powder should give us about a five
second delay and when you’ve got the
delay mix round in tight on top of the
white mix go ahead and cap it off with
another 3/4 of an inch of round kitty
litter clay like you did for the nozzle
to double-check you did it right your
casing should have three quarters of an
inch of clay at the bottom two and a
half inches of white mix above that 5/16
of an inch of delay mix next followed by
a three quarter of an inch of rammed
clay at the top all that’s left to do
now is at the parachute ejection charge
and drill out the nozzle I’m using a
3/32 inch bit for the ejection charge
and a 7/32 inch bit for the nozzle look
closely and you should be able to see
the tips of the bits line up exactly on
either side of the delay mix markings
and that’s important and it’s also a
really good idea to mark both ends of
the bits in line with the ends of the
motor casing because that way you’ll
know exactly how deep to drill if you
want to make sure your Rockets go as
high as possible with a parachute that
ejects when it’s supposed to it’s
critical that all your marks and
measurements are perfect if you’re
feeling confident they are then let’s
move on to adding the ejection charge
next the ejection charge goes in above
the clay but in order to light it off we
first need to use a 3/32 inch fit to
drill a small hole through the center of
the clay until it reaches the delay max
it’s really important not to drill into
the delay mix though because if you do
it’ll compromise the delay time use the
marking at the back of the bit for
reference when you get close slowly and
carefully drill the rest of the hole by
hand the instant you see a little white
powder on the tip of the bit you’ll know
you’ve arrived
so don’t go any further now I picked up
a one-pound bottle of triple FG
equivalent muzzleloading propellant
which seems to work really well for
popping out parachutes carefully pour a
bit of the black powder into the top so
it covers the clay a few grains deep
then take your spoon and get the casing
a few gentle taps at the top to make
sure the black powder flows down the
hole and makes contact with the delay
mix to keep the powder from falling out
give it one firm tap with your dowel and
you should find it compresses the powder
just enough to keep it in place now you
will need to cover the powder with a
fire resistant layer so it doesn’t get
set off accidentally and for that I’m
using some cellulose insulation that ice
cap
from the attic of my house put some fire
resistant wadding on top of the black
powder then Ram it down tight and your
ejection charge is complete with that
there’s only one thing left to do before
our Rockets are ready to fly and that’s
to drill out the nozzles turn the motor
over so the bottom is facing up then
very carefully place the seven 32 inch
bit exactly in the center and slowly
begin to drill it’s important to drill
this hole as centered as possible and
slowly enough that there’s no chance the
fuel can catch fire from the friction
keep drilling until you reach the
reference mark at the back of the bed
and with that final step you’re done
you’ve just created a PVC sugar motor
that’ll screw lock into position just
for fun I made one with an acrylic
casing so you can see inside and get a
feel for exactly how its put together
lighting it off with a fuse you’ll see
that when the white mix ignites it burns
incredibly fast then stops suddenly
where the delay mix begins and five
seconds later pops off the ejection
charge all right let’s try testing one
of the screw lock motors with the
randomizer rocket it was designed for I
connected the leads to an electric match
we made in a previous video then used my
n64 rocket launch controller to set it
off with a quick and powerful burst of
energy the white mix launches the rocket
high into the air then ignites the delay
mix which slowly burns between four to
seven seconds when the delay is all used
up the black powder ignites popping out
the parachute and floating the rocket
safely back to the ground the best part
is it only takes a few seconds to repack
the parachute and screw on a fresh new
motor which means now you can be all set
for another launch within a matter of
minutes well now you know how to use
baking soda kitty litter and a few other
common materials to make sugar powered
hobby rockets for around a dollar each
but if you don’t feel like spending the
time it takes to make your own just use
commercial rocket motors instead I tried
screwing an SD z96 to the bottom of the
randomizer and it flew just as well and
over a thousand feet high it just cost
five times as much well that’s it for
now if you liked this project perhaps
you’ll like some others check them out
at the king of random calm hey guys
before you do anything else I have one
more experiment I want you to try today
and this one’s so easy you can do it in
your sleep I want you to experiment and
see how you feel sleeping on a luxury
hybrid foam mattress from Casper
my wife and I switched to castor back in
January so I can tell you from
experience that it makes a huge
difference to how you feel in the
morning it has a hand sew and cover
that’s breathable and aesthetically
pleasing and the mattress is engineered
with premium latex foam on top supported
by a layer of high density memory foam
underneath that means these mattresses
will contour to your body while still
maintaining a firm and healthy bounce
try it for up to three months and if it
doesn’t work for you Casper will refund
your money and send someone to your
house to pick it up free of charge these
mattresses are made in America and sold
online which cuts out the middleman so
you don’t have to spend $1500 on big
name brands instead simply go to Casper
comm slash the king of random and get a
mattress from between five hundred
dollars for twin sized to nine hundred
and fifty dollars for luxury king-size
and if you use the promo code the king
of random you’ll get an extra $50 off
the price tag just for watching this
video there’s free shipping to the US
and Canada and don’t forget you have a
hundred days to return it so seeing how
there’s no risk I challenge you to
experiment with the Castro mattress and
spend the next hundred days getting a
better night’s sleep that’s it for now
thanks for your support and I’ll see you
in the next project video talk to you
then
[Music]
you
how to make screw lock sugar rockets
these PVC rocket motors are powerful and
designed to help you reload and relaunch
your randomizer rocket within minutes
they’ve got a built-in parachute
ejection system which will help bring
your rockets back safely and the best
part is you can make as many as you want
for about a dollar each let’s start this
project with a box of baking soda a bag
of powdered sugar and 100 percent
potassium nitrate stump remover it’s
really important to grind the potassium
nitrate into a really fine powder and
the easiest way to do that is with a
small blender like the one I found at a
local thrift shop for five dollars
potassium nitrate is hygroscopic meaning
that over time it’ll absorb moisture out
of the air which is exactly opposite of
what we want for our rocket fuel to make
sure your nitrate salt is as dry as
possible try sprinkling the fine white
powder on something like a baking pan
then sticking it in the oven I let mine
bake at 300 degrees Fahrenheit for
around thirty minutes to drive off all
the moisture and prepare for its destiny
is my hobby rocket fuel while we’ve got
that warming let’s move on to modifying
a few 3/4 inch by 12 inch PVC risers
which you can find in the sprinkler
section of your local hardware store I
clamped a piece of wood to my chop saw
exactly five inches away from the blade
which gives me the option to line up the
threaded edges and cut the tubes cleanly
at exactly five inches long every time
you can flip the riser around and do the
same thing with the other threaded end
as well this way you get to 5 inch motor
casings from one riser which will save
you time and money if you’re making more
than one alright let’s move on to
packing the casings and for that you’re
going to need a ten inch oak dowel this
will be a ramming rod and a template as
well and the markings you can see on my
stick are designed to make the
equivalent of an e 45 v rocket motor
mark align precisely in the center of
the dowel at 5 inches and measuring from
this line you’ll need to mark the dowel
at 3/4 of an inch two and a half inches
5/16 of an inch in three-quarters of an
inch
take time to be precise because the
performance of your rocket motor depends
on it these markings are for the
different compositions we’ll be adding
in just a minute and to double-check
you’ve done it right you should have
eleven sixteenths of an inch left at the
tip now depending on how and when your
PVC risers were manufactured they may be
a little too small for the oak dowel to
push all the way through if that’s the
case just use a little sandpaper to
knock down the sides of the dowel a bit
you can slide it all the way into the
casing with little to no gap at the end
now before we pack the rocket fuel it’s
important to rough up the insides of the
casings a bit and for that I’ll be using
a flat metal file the strength of your
clay nozzles and bulkheads will increase
dramatically just by scoring the bottom
inch of your casings on the inner walls
and the deeper you can get the scratches
the better it’ll hold do the same thing
with the top inch of the casing as well
then set the tube firmly on a hard
surface because the time has come to
pack powder the composition I’m using
for my shooter Rockets is a mixture of
these three powders the first glass is
filled with a finely powdered bentonite
clay and we’ll be using that first the
cheapest and easiest way to get
bentonite clay is by going to the dollar
store and picking up a bag of unscented
kitty litter use your hobby blender to
grind a handful for around thirty to
forty seconds when your clay is finely
powdered use a funnel to add some to the
tube hold the tube firmly to a hard
surface then hammer the top of the
ramrod as hard as you can I like to use
a rubber mallet you’ll want to give it
around five to ten good whacks to make
sure the clay is nice and compacted go
ahead and repeat the process and when
the first line on the ramrod lines up
perfectly with the top of the riser your
first clay plug is done let’s move on to
adding the white mix next white mix is
the pyrotechnic fuel that’ll make the
rocket fly and is simply a mixture of
65% potassium nitrate which is the stuff
we just finished drying in the oven and
35% powdered sugar by weight shake the
mixture for a couple of minutes to get
the sugar and salt as intimate as
possible I’m shaking by hand because
it’s a good way to help avoid dangerous
amounts of heat or friction from
building up remember that this is a
highly flammable mixture it needs to be
protected and treated with respect
because you don’t want it going off
accidentally with the fresh white powder
thoroughly mixed go ahead and round the
fuel into the casing until the second
mark on the dowel lines up perfectly at
the top when it does you’re ready for
cup number three this third powder is
the time delay mix that will control
when the parachute gets ejected the
delay mix burns around one sixteenth of
an inch per second and you can easily
make it by using 20 grams of the white
mix sprinkled with three grams of
regular household baking soda use a
digital scale to make sure your
composition is as accurate as possible
then transfer the delay mix into a
plastic party cup and gently swirl it
around for about a minute to make sure
the baking soda gets thoroughly worked
in
five sixteenths of an inch of this
powder should give us about a five
second delay and when you’ve got the
delay mix round in tight on top of the
white mix go ahead and cap it off with
another 3/4 of an inch of round kitty
litter clay like you did for the nozzle
to double-check you did it right your
casing should have three quarters of an
inch of clay at the bottom two and a
half inches of white mix above that 5/16
of an inch of delay mix next followed by
a three quarter of an inch of rammed
clay at the top all that’s left to do
now is at the parachute ejection charge
and drill out the nozzle I’m using a
3/32 inch bit for the ejection charge
and a 7/32 inch bit for the nozzle look
closely and you should be able to see
the tips of the bits line up exactly on
either side of the delay mix markings
and that’s important and it’s also a
really good idea to mark both ends of
the bits in line with the ends of the
motor casing because that way you’ll
know exactly how deep to drill if you
want to make sure your Rockets go as
high as possible with a parachute that
ejects when it’s supposed to it’s
critical that all your marks and
measurements are perfect if you’re
feeling confident they are then let’s
move on to adding the ejection charge
next the ejection charge goes in above
the clay but in order to light it off we
first need to use a 3/32 inch fit to
drill a small hole through the center of
the clay until it reaches the delay max
it’s really important not to drill into
the delay mix though because if you do
it’ll compromise the delay time use the
marking at the back of the bit for
reference when you get close slowly and
carefully drill the rest of the hole by
hand the instant you see a little white
powder on the tip of the bit you’ll know
you’ve arrived
so don’t go any further now I picked up
a one-pound bottle of triple FG
equivalent muzzleloading propellant
which seems to work really well for
popping out parachutes carefully pour a
bit of the black powder into the top so
it covers the clay a few grains deep
then take your spoon and get the casing
a few gentle taps at the top to make
sure the black powder flows down the
hole and makes contact with the delay
mix to keep the powder from falling out
give it one firm tap with your dowel and
you should find it compresses the powder
just enough to keep it in place now you
will need to cover the powder with a
fire resistant layer so it doesn’t get
set off accidentally and for that I’m
using some cellulose insulation that ice
cap
from the attic of my house put some fire
resistant wadding on top of the black
powder then Ram it down tight and your
ejection charge is complete with that
there’s only one thing left to do before
our Rockets are ready to fly and that’s
to drill out the nozzles turn the motor
over so the bottom is facing up then
very carefully place the seven 32 inch
bit exactly in the center and slowly
begin to drill it’s important to drill
this hole as centered as possible and
slowly enough that there’s no chance the
fuel can catch fire from the friction
keep drilling until you reach the
reference mark at the back of the bed
and with that final step you’re done
you’ve just created a PVC sugar motor
that’ll screw lock into position just
for fun I made one with an acrylic
casing so you can see inside and get a
feel for exactly how its put together
lighting it off with a fuse you’ll see
that when the white mix ignites it burns
incredibly fast then stops suddenly
where the delay mix begins and five
seconds later pops off the ejection
charge all right let’s try testing one
of the screw lock motors with the
randomizer rocket it was designed for I
connected the leads to an electric match
we made in a previous video then used my
n64 rocket launch controller to set it
off with a quick and powerful burst of
energy the white mix launches the rocket
high into the air then ignites the delay
mix which slowly burns between four to
seven seconds when the delay is all used
up the black powder ignites popping out
the parachute and floating the rocket
safely back to the ground the best part
is it only takes a few seconds to repack
the parachute and screw on a fresh new
motor which means now you can be all set
for another launch within a matter of
minutes well now you know how to use
baking soda kitty litter and a few other
common materials to make sugar powered
hobby rockets for around a dollar each
but if you don’t feel like spending the
time it takes to make your own just use
commercial rocket motors instead I tried
screwing an SD z96 to the bottom of the
randomizer and it flew just as well and
over a thousand feet high it just cost
five times as much well that’s it for
now if you liked this project perhaps
you’ll like some others check them out
at the king of random calm hey guys
before you do anything else I have one
more experiment I want you to try today
and this one’s so easy you can do it in
your sleep I want you to experiment and
see how you feel sleeping on a luxury
hybrid foam mattress from Casper
my wife and I switched to castor back in
January so I can tell you from
experience that it makes a huge
difference to how you feel in the
morning it has a hand sew and cover
that’s breathable and aesthetically
pleasing and the mattress is engineered
with premium latex foam on top supported
by a layer of high density memory foam
underneath that means these mattresses
will contour to your body while still
maintaining a firm and healthy bounce
try it for up to three months and if it
doesn’t work for you Casper will refund
your money and send someone to your
house to pick it up free of charge these
mattresses are made in America and sold
online which cuts out the middleman so
you don’t have to spend $1500 on big
name brands instead simply go to Casper
comm slash the king of random and get a
mattress from between five hundred
dollars for twin sized to nine hundred
and fifty dollars for luxury king-size
and if you use the promo code the king
of random you’ll get an extra $50 off
the price tag just for watching this
video there’s free shipping to the US
and Canada and don’t forget you have a
hundred days to return it so seeing how
there’s no risk I challenge you to
experiment with the Castro mattress and
spend the next hundred days getting a
better night’s sleep that’s it for now
thanks for your support and I’ll see you
in the next project video talk to you
then
[Music]
you
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