Q-Module 295 mm Integrated Linear Lead-Screw System - 1 Set

This fully assembled linear lead-screw system, provides a fast and convenient solution for linear motion, requiring only a motor and coupler to operate. Thus a 3 axis 3d printer, laser or CNC machine can easily be constructed rapidly without problems of critical alignments, as with other systems. By using an ingenious single integrated block which combines the slide bearing with an anti-backlash nut, a very cost effective solution for linear motion can be produced. The combination of aluminium with delrin provides an excellent combination offering smooth movement, low wear and play, without the need for any lubrication. Due to the reduced weight, smaller stepper motors are necessary and construction is greatly simplified. The Block is manufactured from grade A delrin (Acetal) supplied from a reputable European manufacturer. Pre-set adjustment is provided to eliminate any backlash in the nut and separate adjustments eliminate any play in the linear bearing. Thus even under prolonged use, the block can be re-adjusted for optimum performance, although re-adjustment would normally rarely be required. The precision extruded 20 x 20 mm aluminium V-slot extrusion can be mounted with screws to the V slots. The lead-screw is 6mm diameter with an M6 1 mm pitch thread. This pitch is ideal for small hobby CNC machines, where large speeds are not required, as the fine pitch provides good precision whilst requiring minimal force from a stepper motor, and thus is suitable for direct drive with small stepper motors. Due to the high resolution (0.005 mm per full step on a standard 1.8 degree motor) vibration is negilgible and a simple drive can be used without microstepping, thus further reducing cost. A knob at one end also provides manual adjustment, useful for fine positioning, although this can be removed, if it is not required