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Money box project was a simple idea based on a christmas present I received where a hand comes out of the box and grabs the coin placed on top. This would be a nice simple extension to this project using a very simple mechanism. It is my intension to return to this project and make the grabby money box the mechanism is simple, and very do able in class.

I subsequently found the video of the doggy bank which I think has a charm of it's own and itself is a simple mechanism. At Keystage 3 I would use this as a chance to do some cardboard modeling, and maybe have a go at making some coin falling mechanisms.

At keystage 4 I would be looking at the idea of concealed draws, many cabinet in the past have had secret compartments to hide valuables. The manufacture of these has often become an artform in itself. There has also been a series of hidden in plain sight money boxes or safes often disguised as tins of food, I have also seen safes that are disguised as electrical wall plugs. This project has a number of levels and the hidden in plain sight safes can be made from empty food tins that would normally be thrown away, adding a reclaimed edge to the project, just be careful of sharp edges.

Resources
 
 
 
 

 

Wooden Money Box.

MoneyBox

The Money Box or piggy bank is known to collectors as a "still bank" as opposed to the "mechanical banks" popular in the early 20th century. These items are also often used by corporations for promotional purposes. Their shape is most often that of a little pig. Many Financial Services Companies use piggy banks as logos for their savings products. Piggy banks are slowly becoming extinct due to the modernising of young children which encourages them to open a junior savings account, instead of keeping their money safe in a piggy bank, where it is vulnerable to theft.

Piggy Bank

A modern money box

Hippo Bank

Hippo Bank

Whale Bank

Whale Bank

Cadbury Money Box

 

Cadbury's made a money box that attempted to reward saving with a chocolate prize. I remember having one of these as a child to discover that the mini chocolate bars were not stocked in our local shops.

 

Piggy banks are typically made of ceramic or porcelain, and serve as a pedagogical device to teach the rudiments of thrift and savings to children; money can be easily inserted, but in the traditional type of bank the pig must be broken open for it to be retrieved. Most modern piggy banks, however, have a rubber plug located on the underside; others are made of vinyl and have a removable nose for easy coin access.

Some piggy banks incorporate electronic systems which calculate the amount of money deposited.

We may revisit the mechanical aspects of money boxes at a later date.

The round box picture here is made from three sheets of 26mm+ wood or sheets of MDF.to a thickness of about 75mm.

the bank is made from a wood, Acrylic sheet and Nylon Hexagonal Bar.

Legislation on children's toys has changed significantly in the past few years to the point that traditional fastening methods of nails and screws have been outlawed.

The act states that if a child could break a toy and expose a sharp point (i.e. a nail or screw), the toy fails it's safety assessment.

At some stage this will be applied to schools and the toys made as part of their D&T projects. The worst case scenario being as a law suit.

It is our duty to be aware of changes in the law as ignorance will not be sufficient as a defence should matters become protracted.

All projects on the Boxford site comply with these, no project uses nails or screws in their construction.

CoinSlot

Coin Slot.

Screw

Nylon Wood Screw.

Acrylic

Acrylic Front.

 

Machining the front and back sections.

Machining takes part in a number of phases the first being that the wood is clamped to the bed and skimmed until it it cleaned up.

The first cut will be made with the 12.7mm overlo cutter to a depth of 4.5mm on the red colour.

Followed by the 6mm Straight cutter to cut the brown to a depth of 15mm

Finally the 12.7mm cutter on the blue to a depth of 18mm to miss the clamps.

Money01

Money Box Front and Back drawing in 2D Design - Download

Money Box Front and back drawing in Mill design - Download

 

Machining the middle section .

Again machining takes part in a number of phases the first being that the wood is clamped to the bed and skimmed until it it cleaned up.

Followed by the 6mm Straight cutter to cut the brown to a depth of 15mm and the Green to a depth of 4mm.

Finally the 12.7mm cutter on the blue to a depth of 18mm to miss the clamps.

 

Middle

Money Box Middle drawing in 2D Design - Download

Money Box Middle drawing in Mill design - Download

Once the three pieces have then been cut on one side place an 18mm MDF board on the bed of the machine held with the offset nuts.

Then using the hole template and datum offset of something like 40mm to move the cutting away from the edge. We can drill holes to within 3mm of the bed then hammer rod into the holes.

Drill Template.

Jig

Once the jig had been made the work can then be hammered onto the pegs un-machined face up. The pegs should hold the work down so that it will not slip during machining. A good gauge would be that the piece cannot be removed by pulling on both ends as hard as possible.

Machining for the back.

The back is cut using the 12.7mm cutter on the blue to a depth that will just pass the uncut pieces and also miss the clamps.

 

Back

 

Money Back drawing in 2D Design - Download

Money Back in Mill design - Download

 

The nylon screw can be made out of round or hexagonal bar. Hexagonal bar allows the screw to be threaded into the wood, however, the round bar can be equally hammered into the wood. You may need to vary the screw thread diameter to make a good fit. If you do use round bar and hammer the screws in you may find it harder or impossible to get at the money when it is time to cash out.

Turning Drawing.

Turning

 

Money Back in Mill design - Download

 

Finally the acrylic front and back was cut on the laser printer.

Acrylic

Money Back drawing in 2D Design - Download

Money Back in Mill design - Download