COREXY XL Printer (X3D XL COREXY by Unix) by Fireflynj

Last crawled date: 3 years ago

Remix of http://www.thingiverse.com/thing:730199
Made some improvements/changes and will add anything new here.
Modified box dwg to use 12mm (11/32") plywood, removed LCD window and bolt slots. outside box dimensions are 408mm W x 351mm D x 386 H, print area 200mm x 200mm x 213mm Z.

Center carriage - 4mm hole to install PFTE tube from hob-bolt into J-head to hold flexible filament from bending, strengthened motor mount.

Left and Right carriage - modified to allow 8mm rod go in deeper, but now the pair of X 8mm rods needs to be longer (328mm long on XL box) also removed the rib that separated the pair of bearings, and I just put a dab of RTV silicone on it, I wasted a lot of time sanding the original one off trying to get it to fit

right extruder - spring mount modified to fit the above center carriage.

extruder arm - added a cup to hold PFTE tube in place, resized width for it to center bearing over filament better.

bracket - a pair of these to hold LCD frame on edge of 12mm plywood
Moved Arduino/RAMPS and power supply to back of box, easier to clean debris in box and looks nicer. Personal preference, put it wherever you want!
redesigned the filament spool holder, 31mm diameter
open pulley.scad file with free OpenSCAD where you can customize its size for nice tight fit over bearing
To Do
make a different LCD frame bracket to hold higher off top edge of 12mm plywood or install longer ribbon cable to bring to front edge.
adjustable Z end switch flag
enclosure for Arduino/RAMPS with fan mount.
adjustable spring tensioner on filament feed
I bought the electronics from http://www.sainsmart.com/3d-printing/3d-printkits.html