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7/28/2019 Trebuchet in t Ructions
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Make History!
www.interpla
yuk.com
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INSTRUCTIONS
NUM
BERONE
F
ORS
CIENCE &NA
TUR
E
Manufactured in Taiwan
The wood used in this kit comes from
accredited renewable resources.
Manual, designs and written material
2008 Interplay UK Limited
Version No: TS201 v1.0 2008
Other fantastic products in the
Ancient Fighting Machines range include:
Distributed in the United Kingdom by
Interplay UK Limited, Unit D, Meter House
Fieldhouse Lane, Marlow, Buckinghamshire.
SL7 1LW United Kingdom
Tel: +44 (0)1628 488525
Fax: +44 (0)1628 476700
Email: cusserv@interplayuk.com
Please retain our address for future reference.
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Build the AWESOME
BallistaSIEGE MACHINE
1stCENTURY Build the AWESOME
TrebuchetSIEGE MACHINE
13thCENTURY
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OnagerSIEGE MACHINE
Build the AWESOME
1st CENTURY
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2 3
Introduction
Unit D, Meter House
Fieldhouse Lane, Marlow,
Buckinghamshire. SL7 1LW
United Kingdomwww.interplayuk.com
Important Safety
Information!
end. This principle is similar to a
playground see-saw with a really heavy
person at one end and a lighter person
on the other - the weight of the heavy
person is likely to throw the lighter
person in the air if they do not hang
on! A massive trebuchet nick-named
Warwolf was used by the armies of
Edward 1st when he invaded Scotland
in the late 13th century.
The machine was thought to have
stood nearly 20 metres high and made
short work of what were thought at
the time to have been impregnable
Scottish castles.
The machine was probably made
of oak, it needed 50 carpenters toconstruct it and is said to have taken
30 horse drawn carts to transport
it from one castle to the next. At
Stirling Castle the defenders were
so terrified when they saw Warwolf
they tried to surrender, but Edward
declined wishing to see the terrible
destructive power of his machine.
An eye witness account records that
the machine brought down the entire
castle wall.
This kit recreates a replica of
'Warwolf', once built it is great fun
to see just how far you can fire the
ammunition but please follow the
instructions and warnings carefully to
avoid disappointment and danger.
WARNING!For children over 8 years ofage only. For use under adultsupervision.Read the instructions before use.Follow them and keep them forreference.
Not suitable for children under36 months due small parts thatcould represent a choking hazard
Only to be used with theammunition provided.
The Trebuchet is a siege machine
designed to throw heavy balls
at castle walls to smash them
and allow the invaders in. They
were used in the times before
gunpowder and cannon and
were the most awesome and
technically advanced weapons of
their time.
The origins of the Trebuchet are
vague - no archaeological remains
survive, so all our knowledge is
gleamed from ancient texts and
drawings. It is thought that the
first Trebuchet was invented by the
Chinese; and the knowledge of these
machines spread to the Arab nations
in the Middle East and from there to
Europe.
Over time Trebuchets were improved
from small hand operated machines,
designed to throw stones and small
boulders, to giant contraptions as
high as five storey buildings and able
to throw balls weighing over 100kilos
over distances of 200 metres.
All trebuchets work on the same
principle; using a pivoted arm with
a heavy weight on one end used to
throw a smaller weight at the other
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Trebuchet Parts List 1
Base Plate x 1
CounterweightBasket front/rear x 2
Counterweight
Basket side x 2Winding Crank x 1
Solid Washer x 2
Winding Bracket x 1
Washer x 4
Rear Brace x 2
Chassis Side x 2
Cross Member x 3
Vertical Support x 2
Wheel x 4
Cotton x 1
Nylon String x 1Sling x 1
Front Brace x 2
Trigger Dowel x 1
Throwing Arm Head x 1
Throwing Arm Pivot x 1
Winding Barrel
4.5mm Diameter Dowels
225mm Throwing Arm 1
145mm Axles 2
112mm Pivot Support 182mm Basket Support 1
37mm Winding Axle Sup (R) 1
32mm Sling Tie 1
27mm Winding Axle Sup (L) 1
22mm Firing Pin 1
20mm Sling Release Pin 1
Length DescriptionQty.
Counterweight
Basket Base x 1
Trebuchet Parts List 2
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Constructing
the Sides
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Take Plan Sheets 1 and lay them on a flat
surface protected by newspaper. Lay the side
sections onto the plans as shown, ensuring
that all the holes line up with those on the
plans. Once you are sure that the parts are
correctly laid out, apply a little glue to eachof the joints and allow to dry completely
before lifting from the plans.
Once the two side assemblies are completely
dry, remove them from Plan Sheets 1. Place the
two side assemblies upright on Plan Sheet 2 as
indicated, locating the 3 cross members as shown
on the plan. Before applying glue to the joints,
please ensure that everything is correctly located
and that the whole assembly is square. Allow to
dry completely before lifting from the plan.
Take the two Axle dowels and slide them
through the axle holes at the front and rear of
the chassis. Apply a little glue into the centre
of each of the 4 wooden wheels and push the
wheels onto the protruding axle ends. Ensure
that the wheels and axles are free to rotate and
avoid getting glue between the wheels and the
chassis sides.
Take the Throwing Arm Pivot and slide the
Basket Support Dowel through the hole near
the rounded end until it is central. Apply a little
glue to secure. Take two of the plywood washers
and glue one to each of the ends of the dowel,
leaving about 4mm of dowel protruding at either
end. Once the glue is dry, fit the counterweight
basket to the dowel as shown, by springing the
sides of the basket outwards slightly.
Take the Pivot Support Dowel and slide through
the hole at the top of one of the Vertical
Supports, through the central hole in the
Throwing Arm Pivot, then into the other Vertical
Support. Position the Throwing Arm Pivot
centrally on the Pivot Support Dowel and apply
a little glue to fix it in position.
To prevent the Throwing Arm Pivot from moving
from side to side, glue one of the Solid Washers
to either side of the Vertical Support on its outer
edges, covering the upper hole in which the
Pivot is located. Note that the Pivot must be
able to rotate in the hole in the Vertical Support.
Joining the
Sides Together
Attaching
the Basket
Fit the Wheels
& Axels
1
2
Take the 5 plywood panels that make up
the counterweight basket and join them
together as shown using a little glue. You
can hold the parts together with a little tape
whilst the glue dries if you wish.. Avoid
using too much glue, but be sure that the
joints are well covered. Allow to dry.
Constructing
the Basket
4
5
3
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Tie a length of cotton to each of the 3
holes in the Sling. One of the strings tied
to the pair of holes closest together should
be tied to each side of the Sling Tie Dowel.
The third string should be tied to the
Metal Ring, which will hook over the SlingRelease Pin when ready for firing.
Attaching the Sling
8
9
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Building the
Trowing Arm
Place a small drop of glue in the hole at each
end of the Winding Barrel, then locate it
between the lower holes in the Rear Braces of
the Trebuchet, and insert the two Winding Axle
Support dowels, one from each side. Make sure
that the Winding Barrel is free to rotate. Glue
the Winding Crank onto the protruding end of
the longer Winding Axle Support Dowel, again
ensuring that the assembly is free to rotate.
Tie the long piece of string through the hole in
the Winding Barrel.Glue the firing pin into the hole in the end of the
Trigger Dowel. Attach a small length of string
to the Trigger Dowel, passing it through the
hole provided. This assembly fits into the upper
hole in the Rear Brace, on the same side as the
Winding Crank, and prevents the Crank from
unwinding once the machine is ready to fire.
The Winding
Mechanism
7
Glue the plywood Winding Bracket in position,
about halfway along the Throwing Arm Dowel.
Glue the Throwing Arm Dowel into the hole in
the Throwing Arm Pivot with the small hole in
the Winding Bracket pointing downwards.
Push the Sling Tie Dowel through the hole in
the Throwing Arm Head until it is central, then
glue in place. Glue the Sling Release Pin Dowel
into the hole in the end of the Throwing Arm
Head, then glue the Throwing Arm Head to the
Throwing Arm Dowel with the Sling Tie Dowel
horizontal and the Sling Release Pin pointing
slightly upwards.
6
Attaching the
Base Plate
The Base Plate should be glued into position
over the Cross Members in the base of the
Trebuchet. The Base Plate supports the
projectile in the Sling prior to firing, and allows
them to slide easily when the weapon is fired.
10
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Firing your Trebuchet
9
11
Once you have built your
Trebuchet it is time to try it out.
Before firing please ensure it is in a safe
environment away from young children,
pets or anything that could break or be
damaged by the ammunition. Always use
the ammunition provided with the kit and
always stand away from the Trebuchet
when being fired.
Firstly check that all the mechanisms work
and the basket does not catch the base when
it drops.
Fill the basket to add weight, use pebbles,
gravel, coins or similar. It is best to only halffill the basket to begin with.
Use the winding mechanism to lower the
throwing arm into position. At first lower the
arm until the sling just touches the ground.
Put the firing pin in position to hold the arm
in place.
Next, take a piece of plasticene that comes
with the kit and roll it into a ball about the
size of a marble with an approximate weight
of 5gm. Place the ball in the in the V of the
sling material.
Stand well clear (the ball could go any where!)
and pull the firing pin to release the arm.
If you are lucky youll get a good shot first
time, if not you may need to make some
adjustments.
1
2
3
4
5
Your trebuchet should fire the ammunition in a
semi-circular arc. If this does not happen then
it is likely that your sling needs to be adjusted.
But first make sure the basket swings freely
and the winding mechanism releases the arm
smoothly without slowing it down.
If your ball fires straight up in the air or behind
the trebuchet the sling is being released too
early. If the ball fires into the ground in front
of the Trebuchet, the reverse is happening; the
sling is being released too late.
Check the ring on the sling fits smoothly
over the dowel in the firing arm and does not
either catch or fall off too easily. Then check
the ammunition fits well in the V of the sling
and the string is not tangled or crossed over.
Adjustments
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