Quote
paddy92
To my understanding, only one type of extruder fits on this printer due to the center pivot. Someone could maybe look into a center plate with virtual pivot point hinges. In this way, a clean platform is available and the arm connections are more symetric. Moreover, fans and lights can be placed which is not easely possible at this moment. Here is a picture of my idea [attachment 36376 Real-and-virtual-pivot-point.png] . The blue block is a third of the extruder platform. At the moment the lisa extruder platform has a real pivot point going through the tip of the extruder. One could create a virtual pivot point around the same extruder tip, But place the hinge further to the side. By using the virtual pivot point, one gains a clean extruder platform. However, three additional linkages will be needed and I have no idea if this complicates calibration of the printera lot.
I am lost. What is the problem you are trying to solve here? I do not get a clear explanation of why you want to modify the design this way (whats the take-away) and further, I do not get how you need to add more linkages to offset the extruder. Actually, I am lost as to what you call an extruder. Do you mean the hotend, or the extrusion motor, or putting both together on the moving carriage?