Modelling Light Pollution in Subrubs Using Remote Sensing and GI

Method of aligning a metallic solderable object to a glass plate comprising loading a solderable object onto an end effector of a robotically supported spindle of a spindle assembly, handing a support from the spindle assembly that extends beneath the axis of the spindle and has camming surfaces precisely aligned with the spindle axis, resiliently cradling a backing member on the support by use of a cam member adapted to fit against the support camming surface when the resiliency is overcome, positioning a glass plate on the backing member to overcome the resiliency of the backing member and cause the cam to engage the camming surfaces of the support and automatically obtain normality of the spindle axis with respect to the glass plate. An end effector assembly for facilitating friction soldering of a metal object to a glass plate, comprising a rotary spindle applicator having a support structure carrying a linearly moveable spindle along its axis, a hanging support depending from the support structure that extends beneath the axis of a spindle and carries camming surfaces precisely aligned with the spindle axis, a backing member resiliently carried on the hanging support, the backing member having a cam member depending therefrom and adapted to fit against the support camming surfaces when a glass plate is loaded onto the backing member to overcome such resiliency.