Beacon Bed Scanner Mount for RatRig vCore 3.1 EVA3 Assembly

This model includes two modified parts incorporated into the EVA3 Assembly the comes with the RatRig vCore3.1 printers.  These changes allow mounting of a Beacon3D scanner (revH - low profile) underneath the EVA3 behind the Phaetus hot end.  

Print parameters - The settings recommended by RatRig for printing parts are as follows

• Layer Height: 0.2 - 0.3 mm
• Perimeters: 4 x 0.45mm
• Infill: 25%
• Supports: None
• Material: PETG or ABS (preferred)

The attached photos and screen shots show the cad model and the Beacon scanner mounted on the EVA3.  

This model includes two modified parts incorporated into the EVA3 Assembly that comes with the RatRig vCore3.1 printers.  These changes allow mounting of a Beacon3D scanner (revH - low profile) underneath the EVA3 behind the Phaetus hot end.  

The parts modified include the back_core_xy v2 and the bottom_horns v2.  The bottom horn was modified by adding two mounting posts that align with the screw holes on the Beacon scanner and changes to the opening of the duct entrance to make room for the USB connector on the scanner.  The mounting holes accommodate heated brass inserts into which the mounting screws are inserted to hold the scanner in place.  

The back core modifications include:

• Addition of a zip tie mount that allows fixation of the USB cable tight to the bottom of the back core to relieve strain and ensure the wires do not drag on the build plate
• Re-alignment of the duct opening to fit with the changes made to bottom horn model 
• Removal of the hole that accommodated a screw used to fasten the fan duct to the bottom horn
• Addition of a recess that allows use of brass insert to fasten the screw holding the fan duct tight to the back core.  

The duct modifications encroach slightly into the lumen of the original duct, but it does not appear that the changes significantly impede air flow through the duct.