Pecking BirdsWhen the crank is turned (rotated), the birds appear to be pecking the ground. This type of motion is called oscillating motion.


The the birds legs are joined together by a wire which acts as a fixed pivot round which the body moves.
The input motion from the crank is transmitted to the birds through a linkage.

Bees
This model has three bees attached to a platform that rotates freely round a central pole. As the bees are rotated, the platform is forced to rise as the red strings twist and tighten themselves around the pole
The bees are then released and the weight of the platform then makes the strings unwind, lowering the platform and starting the process all over again

Ocean MotionThis model has a series of waves resting on top of circular cams. See cams for more information.
The waves act as cam followers and when the crank is turned they move up and down and from side-to-side. The wave movement is created by each cam being slightly offset from the next one. v

WHAT IS A MECHANISM?
Mechanisms are devices that have been designed to make jobs easier. They all have certain things in common:

They involve some kind of motion.
They involve some kind of force.
They must have some kind of input to make them work.
They produce some kind of output.
If we connect mechanisms together we can build mechanical systems called machines.

Mechanisms can also be used to make moving toys like the caterpillar and the other toys featured in this program.

you mus watch till the end before you can catch the interesting parts of the amazing video!!!

Hardwoods
Jelutong-not very strong or durable, easy to work with. Used for carvings and manufactured toys
Dark Red Meranti-quite strong and durable, can be difficult to work with. Used for furniture,flooring,door and window frames
Ramin-quite strong and durable, can be difficult to work with. Used for furniture,kitchen cabinets,picture frames
Chengal-hard,strong and durable,easy to work with,can be stained, polished or varnished. Used for garden benches,bridges and boats
Kapur-very durable and stiff,has campfor smell. Used for formwork in construction,hulls of boats and decks of lorries
Nyatoh-fairly strong and durable,can be stained and polished. Used for beams,rafters,joists,door and window frames,furniture and plywood.
The suitable wood used for mechanical toys would perhaps be jelutong. though it may not be very strong or durable, it is easy to work with which is the aim as we are beginners wand wouldn't want to try out with hard and expensive woods.

HARDWOODS
Mahogany: Fine grained, reddish brown in color. Very durable and resists swelling shrinking, and warping. Used for quality furniture such as cabinets; boat construction; wood facings and veneers.
Walnut: Fine textured, strong, easy to work with and resists shrinking and warping and finishes well. Best used for gunstocks, solid and veneered furniture, novelties, cabinetry and wall paneling.
Oak: Strong with good bending qualities. Is durable and finishes well and resists moisture absorption. Used for furniture, trimming, boat framing, desks and flooring.
Maple: Fine textured and is fine textures. It is strong and hard. Has moderate shrinkage and machines well. Best used in flooring, fine furniture and woodenware such as bowling alleys.
Cherry: Close-grained and resists warping and shrinking. It will redden when exposed to sunlight and ages well. Used in cabinet making, boat trim, novelties, solid furniture handles and turned projects.
Rosewood: Very hard and has a dark reddish brown color. It is fragrant and close grained. It is hard to work and takes high polish. Used in musical instruments, piano cases, tool handles, art projects, veneers and furniture.
Teak: Hard and durable and resistant the moisture and rot. It resists warping, cracking and decay. Best used in fine furniture, paneling, shipbuilding, doors, window framing, flooring and general construction.
SOFTWOODS
Pine: It has uniform texture, works easy and finishes well. It resists shrinkage, swelling and warping. Used in house construction, paneling and trim. Also used for furniture, molding and boxes.
Hemlock: Light in weight, uniformly textured. It machines well and has low resistance to decay and no resinous. Used for construction lumber, planks, doors, boards, paneling, sub flooring and crates. Fir: Works easy and finishes well. Uniform in texture and no resinous. Has low resistance to decay. Used in furniture, doors, frames, windows, plywood, veneer, general millwork and interior trim.

Lynn Tan
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