Julius's D&T Blog

Thursday, May 8, 2008

Well sorry, i forgot to post for quite a long time so i will try to
make up for it : D
This is a toy rather suitable for young infants or children but it may be
as it can be easily taken apart into small pieces.
It is in many colours so it will probably be very popular
with children but it is better if the parts can be stick together to
prevent children to take the parts apart and swallow them.

Posted at; {1:33 AM}

Saturday, February 23, 2008

This is another picture of another mechanical toy.
Now for some comments
This mechanical toy can be played by children of all ages
but they need to be careful for the sharp edges of the toy
that might cause injuries.
there are also small parts in it that can be swallowed
by children so they should be covered for safety

Posted at; {6:37 PM}

Monday, February 4, 2008

This is a picture of another mechanical toy

This mechanical toy could be used to let
children to play with since it do not have
sharp edges but there are small parts that
children might swallow so be careful not to
let children swallow them.

Posted at; {10:26 PM}

Monday, January 14, 2008

This is a picture of of a mechanical toy :

Posted at; {6:46 PM}

Monday, December 31, 2007

This is a picture of how the Mouse-Trap Car will look like once it is completed

Thing you will need :

A mouse/rat trap
Two metal rod of about 4mm length and 1.5cm longer then the width of the mouse/rat trap
Four Small eye-hole screws
Pieces of plywood for wheels
Two Rubber Bands
Strings
Some small washers with about 4mm inside diameter

Tools that you need:
A drill with a 3.7 mm bit
A jigsaw or coping saw
A compass,
A hammer
A vice
A hacksaw
A flat file
Some super glue
Two-part epoxy glue
A pair of pliers
A flat jeweller's file

How to Build the Mouse-Trap Car:

Using the pliers to pull the wire catch so that the trap stays open and the bait holder out of the wooden mouse trap. Remove the wire staplers that hold these parts in place. Also keep the wire catch.
Now, Drill a hole about 8mm from each edges at the side then put in one of the eye hooks and make sure that they are facing the sides of the mouse trap. You must also make sure the mouse trap do not split so do it lightly.
Next, use a compass to mark out 7.5cm on the pieces of plywood.
Then, use the 3.7mm drill bit to drill a hole in the middle of the circles and make sure that the metal rods require some force to insert it into the holes.
Cut out the circles on the pieces of plywood with a coping saw or a jigsaw.
File the sides of the circle with a flat file and make sure that they are smooth.
Now cut out the metal rods into equal length which is about the width of the mouse trap and twice the thickness of the plywood and plus 5 mm .
File the end of the rods smooth and put a small chamfer on them.
Hold one of the rods firmly and use a hack saw to make a cut about halfway through the metal rod at one-third of the total length of the rod from the end.
Use the jeweller's file to widen the slot so the the wire catch from the first step can fit snugly in it.
Use a plier to cut 7mm from the wire catch.
File the end of the piece of wire and make sure there are no burrs.
Use the two part epoxy glue to glue the wire catch into the slot in the axle and the wire piece should overhang the rod on one side only. Let the glue dry overnight.
Take the rod with the wire catch on it and put it through eye hooks at the rear of the moust trap, the rear is the end where the trap jaws lie when its set.
Put some washers at the end of the rod, there should be enough of the rod left at either side to accomodate the wheels but not too much or the wheels will rud against the mouse trap.
Use a vice to push the wheels into the ends of each axle .
Put the front axle in the same way as the rear axle.
Use a string and tie it to the mouse-trap jaws.
Tie a small loop on the string so that the string ends at the rear axle and cut the loose end off the string.
Take the rubber bands and put them around each of the rear wheels. The rubber will give the traction on smooth surfaces. use some super gule to hold the rubber bands in place.

Now the Mouse-Trap Car is complete. You need to start it by raising the jaws of the slightly. Take the loop at the end of the string and slip it over the wire piece on the rear axle. Turn the rear wheels reverse so that the string wll wind onto the axle. It will pull the trap jaws open. When the jaws are fully opened put the mouse trap car on ther ground and release it.

Posted at; {8:06 PM}

Sunday, December 23, 2007

i just made this blog so i will upload more post later on

Posted at; {8:39 PM}