Groove cutter
The groove milling machine , flat dowel milling machine , shaped spring milling machine or lamella milling machine is a hand-held milling machine in wood processing for producing grooves , mainly for connections with flat dowels .
construction
The construction of the groove milling machine is similar to an angle grinder ; a disk-shaped milling cutter lying parallel to the support table is driven via an angular gear. The support table forms a housing that completely encloses the milling cutter and is mounted so that it can be moved on guides. On the working side of the housing there is an opening for pulling out the milling cutter.
At the upper end of the housing there is a flap which, in the basic position, enlarges the system on the working side. It can be folded forward up to 90 ° and enables defined positioning when milling miter joints . Additional angle stops and spacer plates can be attached to it for further connection situations. There is an adjustable depth stop on one side of the machine to adjust the groove depth to the lamella size used.
application
To create a groove, the device is pressed against the workpiece, the housing slides back and the milling cutter enters the surface. When the machine is withdrawn, springs pull the housing back into its starting position.
In the main application for flat dowel connections, short grooves are milled in the length of the connector. Here, the milling cutter is withdrawn immediately after the milling cutter has plunged into the workpiece and placed in the next position for a connector.
Further applications are the production of continuous grooves and shadow gaps . Here, after the milling cutter has plunged into the machine, it is guided over the entire surface to be machined.