Abstract: A fusing agent for three-dimensional printing can include from about 5 wt % to about 40 wt % water; from about 4 wt % to about 60 wt % C7 to C12 aliphatic ester cosolvent; and from about 0.5 wt % to about 10 wt % solubilized avobenzone.

Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a bed moveable in a vertical direction. The bed is to receive a build material that is to form a three-dimensional (3D) printed object. The additive manufacturing system also includes a build material depositor to deposit the build material on the bed and a build material spreader to traverse across the bed to spread the build material. The additive manufacturing system also includes a solidification system to selectively solidify a layer of build material. The additive manufacturing system also includes a controller. The controller is to lower the bed by a first amount in preparation for receiving build material and iteratively raise the bed in increments in between passes of the build material spreader across the bed, wherein an increment is a portion of the first amount.

Abstract: A three-dimensional printing kit can include a build material having from about 80 wt % to 100 wt % polymeric particles with a D50 particle size from about 10 ?m to about 150 ?m, and a fusing agent including from about 0.5 wt % to about 20 wt % benzotriazole radiation absorber solubilized in a liquid vehicle.

Abstract: A fusing agent for three-dimensional printing can include from about 0.5 wt % to about 6 wt % triazine radiation absorber; from about 40 wt % to about 90 wt % organic cosolvent; from about 0.4 wt % to about 4 wt % of a surfactant selected from a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, or a mixture thereof; and water.

Abstract: A three-dimensional printing kit for forming lens elements can include a build material including from about 80 wt % to 100 wt % thermoplastic polyamide elastomeric particles having a D50 particle size from about 10 ?m to about 150 ?m, and a fusing agent including a liquid vehicle and from about 0.5 wt % to about 20 wt % of a UV radiation absorber.

Abstract: In one example in accordance with the present disclosure, a method is described. The example method includes forming a lattice anchor with a build material in a powder bed of a three-dimensional (3D) printing system. The example method also includes forming a 3D object with the build material attached to the lattice anchor.