3D Printing in Schools

Examples of 3D printing

By Tim Brotherhood and Stuart Douglas   3D printing has been around since 1984 and until recently was called rapid prototyping (RP) but the appearance of consumer devices and increasing use for production components has prompted the name change. Before we get into the nitty-gritty of the equipment and how they can be used in the classroom, a few unusual […]

Continue reading »

Seetrax XL Designer

At Finham Park School, Ranger has been the principle design software for all pcbs for over 10 years. Mainly used at GCSE level, students are introduced to it in year 7. Ranger is excellent for the full range of pcb design that we do – from the simplest ‘clunky’ single sided designs to complex double sided surface mount PCBs. This […]

Continue reading »

Eco nightlight

The nightlight is a popular project in schools and, depending on the circuit used, suitable for a very wide student age range.  Even at key stage 2, students can learn much from a basic circuit comprising a battery, switch and LED.  More sophisticated automatic PIC or RC timer controlled circuits offer the scope for programming or investigation of resistor and […]

Continue reading »

Long time delays – why they are difficult to achieve with just RC networks

It is difficult to achieve timing delays of more than a few minutes with the standard 555 circuit because of the way electrolytic capacitors behave. When the capacitor plates are charged a small current passes through the dielectric – this is called the leakage current. A real capacitor behaves like a perfect capacitor in parallel with a leakage resistance. To […]

Continue reading »