How to choose a CNC spindle?
The right choice of a spindle or a milling head is very important. As long as that goes for fun in plywood or soft plastics, a"toy" brush spindle in a plastic housing may be enough...
CNC milling machine or plotter?
What is the difference between a cutter, a plotter and an engraving machine? Different people use these terms interchangeably, frequently to the same machine. Indeed, the tasks of these machines often overlap...
Which inverter for CNC?
The spindles installed in milling plotters and engraving milling machines are usually induction electro-spindles powered with an inverter. What is the inverter for? The principle of operation of the induction motor shows that the spindle speed in a steady state is proportional to the frequency...
CNC machines accuracy
The accuracy of the machine is often the primary criterion for the selection of a machine tool. Everyone would like to have the most accurate machine. However, the accuracy of the machine is often misunderstood, which sometimes may lead to confusion...
How to test CNC machines?
CNC machine tools have been created primarily in order to increase the efficiency and accuracy of processing by reducing or eliminating physical human work. In times when labour costs are getting more expensive, the natural purpose becomes...
Steel or cast iron?
The frames of machine tools are made of cast iron or steel. Most of the machine tools for cutting metal are made of cast iron. However, this is not the best material for this purpose in relation to the stiffness obtained from 1 kg of material...
How to choose a CNC engraver?
First of all, you have to pay attention to rigidity. Even the most nicely-looking engraver but with mediocre rigidity (e.g. twisted aluminum profiles) will not ensure proper operation. This can cause jagged edges...
Intensifier or crankshaft?
Abrasive waterjet cutting machines are considered to present the most innovative technology of formed cutting which allows for machining almost all materials. Water under pressure of 3 to 4 thousand bar is used to disperse the sand grains of garnet...