Abstract: The present invention relates to a method for producing three-dimensional models by a layering technique, particulate build material being applied to a build space, and binder material subsequently being selectively applied to the build material with the aid of a printer, the binder material containing a moderating agent and subsequently being sintered with the aid of a heat lamp, the print head being protected against overheating by active and/or passive cooling.

Abstract: The present invention relates to a device for manufacture of three-dimensional models by means of a 3D printing process, whereby a spreader device is used to deposit particulate material in layers on a build platform and the particulate material flow, which occurs perpendicular to the spreading direction, is transferred into containers that are actively cleaned by sliders or brushes at the spreader device. It exploits the fact that particulate material that is moves dynamically can only bridge small height differences. The arrangement can be implemented in a space-saving manner beneath the spreading plane.

Abstract: The present invention relates to a method for producing three-dimensional objects based on computer-provided data, whereby a material is deposited in layers in a process chamber and the material is selectively solidified and/or bonded using a bonding apparatus and/or a solidifying apparatus in the process chamber, these steps being repeated. A conveyance of the material proceeds during the build process and proceeds continuously, sequentially and evenly up to an unpacking position.

Abstract: The invention relates to a device and a method for 3D printing with accelerated method execution.

Abstract: 1. The present invention relates to a device for manufacture of three-dimensional models by means of a 3D printing process, whereby a spreader device is used to deposit particulate material in layers on a build platform and the particulate material flow, which occurs perpendicular to the spreading direction, is transferred into containers that are actively cleaned by sliders or brushes at the spreader device. It exploits the fact that particulate material that is moves dynamically can only bridge small height differences. The arrangement can be implemented in a space-saving manner beneath the spreading plane.

Abstract: The present invention relates to a method for producing three-dimensional models by a layering technique, particulate build material being applied to a build space, and binder material subsequently being selectively applied to the build material with the aid of a printer, the binder material containing a moderating agent and subsequently being sintered with the aid of a heat lamp, the print head being protected against overheating by active and/or passive cooling.

Abstract: The instant invention relates to a method for changing characteristics of a plastic component, wherein a medium is introduced into the plastic component, which encompasses a porosity and wherein the medium forms a homogenous compound with the plastic component by at least partially dissolving the plastic component.

Abstract: The present invention relates to a device for manufacture of three-dimensional models by means of a 3D printing process, whereby a spreader device is used to deposit particulate material in layers on a build platform and the particulate material flow, which occurs perpendicular to the spreading direction, is transferred into containers that are actively cleaned by sliders or brushes at the spreader device. It exploits the fact that particulate material that is moves dynamically can only bridge small height differences. The arrangement can be implemented in a space-saving manner beneath the spreading plane.

Abstract: The invention relates to a method for implementing layered construction of plastic models, whereby a first material is applied to a building platform and thereupon a second material is selectively applied and these two application steps are respectively repeated layer after layer until the desired model is obtained. The two materials form a solid body when a suitable mixture ratio is used. The first material includes a particle material and the second material is applied via a print head and contains N-vinylformamide.

Abstract: The present invention relates to a method for producing three-dimensional objects based on computer-provided data, whereby a material is deposited in layers in a process chamber and the material is selectively solidified and/or bonded using a bonding apparatus and/or a solidifying apparatus in the process chamber, these steps being repeated. A conveyance of the material proceeds during the build process and proceeds continuously, sequentially and evenly up to an unpacking position.

Abstract: The present invention relates to a device for man facture of three-dimensional models by means of a 3D printing process, whereby a spreader device is used to deposit particulate material in layers on a build platform and the particulate material flow, which occurs perpendicular to the spreading direction, is transferred into containers that are actively cleaned by sliders or brushes at the spreader device. It exploits the fact that particulate material that is moves dynamically can only bridge small height differences. The arrangement can be implemented in a space-saving manner beneath the spreading plane.

Abstract: The invention relates to a method for implementing layered construction of plastic models, whereby a first material is applied to a building platform and thereupon a second material is selectively applied and these two application steps are respectively repeated layer after layer until the desired model is obtained. The two materials form a solid body when a suitable mixture ratio is used. The first material includes a particle material and the second material is applied via a print head and contains N-vinylformamide.

Abstract: A steering system for a towed implement includes a first double-acting hydraulic actuator that is coupled between the towing vehicle and the towed implement such as that turning the towing vehicle relative to the towed implement results in fluid being forced out of the first actuator and into a second double-acting hydraulic actuator that is coupled for effecting steering of a steerable wheel of the towed implement. The piston rod of the second actuator is coupled to the piston rod of a third double-acting hydraulic actuator forming part of a control for steering the towed implement wheel independently of the turning action of the towing vehicle in order to straighten the steered wheel so that the implement may be moved backwards with out any problems. In one embodiment, the towed implement frame is made so as to be extensible and retractable in the fore-and-aft direction.

Abstract: A round baler has a baling chamber formed in part by a plurality of belts engaged with a plurality of rolls extending between opposite side walls of the baler, the rolls and belts being located such as to define an enclosed zone next to the baling chamber. The belt arrangement is so designed that in conjunction with two rolls between which some of the belts extend directly there is used a roll arrangement which includes at least two axially aligned rolls offset from the other two rolls and being engaged by the remaining belts so that gaps are created between offset belts extending about the offset rolls and the non-offset belts extending directly between the first mentioned two rolls. These gaps serve to permit pieces of the material being baled to escape from the area otherwise enclosed by the belts.

Abstract: A baling machine for forming large cylindrical bales of hay has a gate which can be raised to enable a completed bale to pass under it for discharge. The bale initially rests on a horizontal support which is connected by a cable and link to the gate. On the gate being raised sufficiently to enable the bale to pass freely below it, the moving gate pulls the support via the cable and link downwardly to form a discharge ramp along which the bale rolls onto the ground. The support is contained entirely within the confines of the machine, and thus, does not extend behind it.

Abstract: A baling machine for forming large cylindrical bales of hay has a gate which can be raised to an open position for enabling a completed bale to pass under it for discharge. Upon initial opening of the gate, the bale initially rests on a horizontal support which is connected by a cable and link to the gate. On the gate being raised further, the moving gate pulls the support via the cable and link so that it swings downwardly in a rearward direction to form a discharge ramp along which the bale may roll onto the ground and beneath that gate. The arrangement is such, however, that in hilly terrain the gate can be opened initially to an intermediate position corresponding to an intermediate swinging position of the support so that the bale runs down the support and either lodges against the gate before or after it contacts the ground. On either event the gate stops the bale from rolling.