scripete copii proiect complet

8/13/2019 Scripete Copii Proiect Complet

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ntroduction

The seesaw plank pivots on a central support that is concreted into a used car tire.

This makes for a very stable base, yet the seesaw can still be moved from place to place.

The seesaw does not have any handles, thus allowing kids of different weights and sizes to ride the

seesaw by positioning themselves along the plank until they find balance.

For example, a heavier kid would sit closer to the middle and a lighter kid would sit more towards the

end of the plank.

This is a very sturdy seesaw and the kids will have loads of fun.

The pivot height can be adjusted by simply raising or lowering the pivot height bolts.

This projectwill take you through the complete seesaw building process from start to finish, with plans

and step-by-step pictures and instructions.

et!s begin"

Some navigation hints.

The plans and partsare on the next page, followed by the instructions on subse#uent pages.

The indexpage will tell you the contents of each page.

$ny page can be reached by clicking on the page number above, so you can jump back and forth to

suit.

%t!s always a good idea to skim through all the pages first just to get an idea of what!s there.

&entral support plan and partslist

Throughout this projectall
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measurements are given in both metric

'mm( and standard imperial 'ft and

inches(.

)hen selecting the wood for this

seesaw project make sure that it is

suitable for exterior use.

%f you cannot source the exact wood

sizes as shown in this project, then a

near size will do as long as the tire hole

will fit the central supportunit..

*elow is a list of all the parts which are

basically a seesaw plank, a bit of lumber

for the central support, a piece of

galvanized water pipe, a bit of concrete,

half a dozen bolts, some pipeclipsand acar tire.

+sed tires can sometimes be obtained

free from tire stores.

The size of the tire used in this project is

/0-1. That means the tire is

mm '2( wide and has a hole

diameter of 340mm '12(. 5ou can use

a different size tire, just as long as the

width and hole size will accommodatethe central support.

The parts list

A( Four pieces of 4mm x 1mm ' /62 x 6 /62( wood which are 00mm '602( long for the

vertical pieces of the central support unit.

B( 7ne piece of 80mm x 1mm ' /62 x 3 /62( wood which is 316mm '3 /62( long for the

spacer.

C( 7ne piece of 60mm '3/12( galvanized water pipe which is 316mm '3 /62( long for the pivot

bar.

9ote: )ater pipe is measured by the inside diameter, so the actual overall diameter of the pipe

will be approximately 6mm ' /;2(.

D( 7ne piece of 80mm x 1mm ' /62 x /62( wood which is 3000mm '0ft( long for the

seesaw plank.

E( Four pipe saddle clips 'size to suit( to fix the water pipe 'pivot bar( to the seesaw plank.

F( Four 6mm '/62( galvanized carriage bolts which are 0mm '42( long.
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G( $ used car tire about mm '2( thick, 400mm '6ft( overall diameter and with 'at least( a

340mm '1 /;2( hole diameter.

H(


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To three-#uarter-fill the average heavy-duty

wheelbarrow, put in 4 spades-full of gravel, 1

spades-full of sand and 6 spades full of cement

'which is a ratio of part cement, 6 parts sand

and 3 parts gravel(.

=ix it all together before adding water.

Then add about half of a standard household bucket 'more or less( of water. $dd a little at a time.=ix with the spade from the bottom and fold over. &ontinue doing this and adding the water untilthe mix is a uniform consistency.

Tip:when mixing, a smaller spade is easier toworkwith than a larger one.


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is everywhere inside the tire.

&heck the front for s#uare


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=ark the center of the seesaw plank

=easure and find the middle of the seesaw plank.

>raw a s#uare line across the middle of the

seesaw plank using a set s#uare.

=ark for the pivot bar

>raw two more s#uare lines. 7ne each side of themiddle line.

=ake the two outside lines the same distance

apart as the outside diameter of the pivot bar

'water pipe(.

Bnsure that the two outside lines are e#uidistant

'the same distance apart( from the middle line.

@osition the pivot bar

@artially hammer in three nails as shown in the

drawings.

The nails are to hold the pivot bar in place and stop

it from moving until it can be fastened.

@lace the pivot bar on the seesaw plank between

the nails. Bnsure each end overhangs the sides ofthe plank by the same amount.


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Fasten the pivot bar

Fix the pivot bar to the seesaw plank

with pipe saddle clipsor other suitable

fastenings.

?emove the guide nails

7nce the pivot bar is fastened to the seesawplank, the three guide nails can be removed.

$dd the seesaw plank to thesupportunit

@ut two carriage bolts into the pre-drilled holes in

the central support unit.

There is a choice of two heights.

9ow it!s simply a matter of placing the seesaw

plank over the central support and lowering it until

the ends of the pivot bar rest on the carriage bolts

between the slots in the vertical pieces of thecentral support unit.

>one"

$uthor: es Cenny

Bditor: =aree $nderson
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