The choice of type of cutter for the machine depends on the material being processed:
1-entry router cutters for CNC machines are suitable for “soft” materials: soft plastics (plexiglass, acrylic, PVC, plexiglass, polystyrene foams), wooden materials (wood, fiberboard, chipboard), sandwich panels (aluminum / plastic) in winning sharp. Since here the problem of faster blunting is preferable to the risk of clogging and breakage of the cutter.
This type of cutter is mainly used by advertising and breadboard industries for quick cutting of materials in the case when the quality of the end face of the processed surface is not so important. However, the depth and length of one groove allows you to get a long chip, which prevents clogging of the cutter, which increases its durability.
2-way router cutters for CNC machines are suitable for router hard materials MDF, Plywood, plastics (plexiglass, acrylic, PVC, plexiglass, polystyrene foam), sandwiches (aluminum / plastic).
A spiral mill with two or more passes is used for processing with the formation of smaller chips and with a large removal of material in one pass. The number of teeth and the depth of the grooves ensures grinding. When using mills with a large number of approaches, it is possible to achieve a higher purity of the treated surface.
The spiral two-way round cutter allows you to get the least rough surface due to less vibration during the cutting process. This tool is used to apply U-shaped engraving (for example, text) on the surface of the material, and is also used in the final or preliminary processing of three-dimensional objects (depending on the size of the smallest relief elements). During the final processing by such a router cutter of hard wood varieties, the surface is polished and does not require additional refinement. Spiral cutters are also used for preliminary and final (depending on the geometry of the processed surface) processing of 3D objects and various shapes.
Ñutters for CNC machines
The most common cutters with the removal of chips up. When working with a router cutter with removal of chips upwards, a pile may be present on the surface of the processed material. In order to obtain a clean surface with slotted carving (cutting), router cutters can be used to remove chips to the bottom, which combine the right rotation and the left spiral of the thread, which prevents the occurrence of pile on the surface. When processing laminated materials, compression cutters are used, which allow to obtain a surface without chips, while preserving the facing material.
Spherical, or ball, router cutters for CNC machines are used for 3D processing. They process wood, plastic, steel, non-ferrous metals (copper, aluminum, duralumin, brass, etc.). These cutters allow you to get a surface with less roughness due to less vibration during the cutting process.
Differences between a mill and an engraver
An engraver is a simple tool divided in half by a cylinder, followed by back grinding.
The shape may be different; most common are triangular. In contrast to router cutters, they do not have a spiral groove for chip evacuation.
The main difference between Chinese and European router cutters is their resource, measured in linear meters or hours of operation of machines. Since the cost of European router cutters, as a rule, is 2-3 times higher than the cost of Chinese, the benefits are very tangible. Considering the option of metalworking, it will be useful to check the accuracy of the router cutter. As a rule, factories engaged in the manufacture of metal router cutters in Europe have their representative offices in China. If you take non-branded Chinese cutters, then you need to carefully look at the sharpening angle, the depth of the groove and it is advisable to ask what alloy they are made of.
On 3dmodelmania.com you find 3D STL models ready to view, buy and download. Stereo lithography (STL) file format used for manufacturing with CNC routers. Any size can be set to produce the model without losing all the details.
