CALLIPER

Acalliper is  is a device used to measure the distance between two opposite sides of an object. A caliper can be as simple as a compass with inward or outward-facing points. The tips of the caliper are adjusted to fit across the points to be measured, the caliper is then removed and the distance read by measuring between the tips with a measuring tool, such as a ruler.

In these links you have exercises to practise with the calliper

how to use the calliper

 the calliper

micrometer

http://www.stefanelli.eng.br/webpage/metrologia/p-micrometro-milimetro-centesimal-simulador.html

DRAWING

Hello, I leave you this link so as to practise  exercises:
 VIEWS OF AN OBJECT
In this video you can see how to get the views from an object:



And more about how to get the views:
Getting the views of an object

DIMENSIONING:

TYPES OF DIMENSION USED IN TECHNICA DRAWING

BASIC RULES OF DIMENSIONING

GAmes:

Try this one with blocks:
BLOCKS