In my last video, I shared my Ender-5 Pro CoreXY upgrade plan and went through the assembly instructions. Since I used another top frame to build and design the prototype, when I moved all the parts to the Ender-5 Pro, I realized that a few things may be different, so I updated the 3D drawings and the STL files. In this video, we will configure Marlin firmware to work as a CoreXY printer. If you are not familiar with the firmware configuration, you can watch my previous to know more how to configure Marlin firmware for the Ender 5. Compiling Marlin firmware for Ender 5 Pro: https://www.youtube.com/watch?v=GbHsNCDrTpY I also included all the STL files for you to 3D print the parts that you need for this upgrade and the full list of the items you need to buy for this upgrade. Download link for STEP, STL, and assemble color code: https://www.auroratechchannel.com/download/EP29-AuroraCoreXY_v30.zip * Last update 8/31/2021, Version# v30(Adjusted Corner Block STL) Browser based link for the 3D drawing(Fusion 360 or solidworks is not required): https://a360.co/3sRSKJH (Version 36) Affiliate links: Creality Ender-5 Pro: https://www.comgrow.com/collections/creality-3d-printers/products/creality-ender-5-pro-3d-printer-silent-board-pre-installed?sca_ref=1250847.yeQExBCAFo Creality REFURBISHED 3D Printers (SAVE up to 50%) https://bit.ly/3EGO2UR Used Ender-3 ($79) Maybe in bad condition, but if you know how to fix a 3D printer and have spare parts to replace by yourself, that could be an amazing deal: https://bit.ly/3LPnzHw Amazon links for all items you need in this upgrade: MGN12 Linear Rails with MGN12H slider Block: 2X 350mm ($39.99 pack of 2) 1X 400mm ($24.99 each) https://amzn.to/3jmRPxM GT2 Wheels / Belt: 8X 20 Teeth https://amzn.to/3Du0I0w $12.99 (20-T pack of 10) https://amzn.to/3BkXFWr $8.98 (20-T pack of 5) 6X Toothless https://amzn.to/3mHvIUT $11.99 (Toothless pack of 10) 1X GT2 Timing Belt 5M https://amzn.to/2WuDpTa $8.99 Motor Mounts: 2X Nema 17 Stepper Motor Mount https://amzn.to/3BnIls4 $14.99 (pack of 6) Stepper Motors: 2X Nema 17 38mm Stepper Motor https://amzn.to/2WS6tES (pack 1,3 or 5) M5 Screws/Nuts: 6X M5 *60mm https://amzn.to/3sTYItB $5.99 (25 pcs) 4X M5 *40mm 2X M5 *35mm 2X M5 *25mm https://amzn.to/3BrQRGN $10.99 (assorted 100 pcs, included 3 items above) 2X M5 *15mm https://amzn.to/3jmbldI $5.99 (50 pcs) 8X M5 2020 Series T-Nuts https://amzn.to/3jmSoro $6.99 (105 pcs) M3 Screws/Nuts: 2X M3*45mm 2X M3*25mm 8X M3*20mm 10X M3*12mm 16X M3 *8mm 4X M3 HEX 2020 Series Nuts https://amzn.to/3kAzooI $24.98 (Assorted 1575 pcs, included all 6 items above) 12X M3 T-Nuts https://amzn.to/2Wy7ulb $6.99 (105 pcs) Washers/Spacers: 11X Washers M5*10mm*1mm https://amzn.to/38li9BZ $7.99 (100 pcs) 4X Washers M5x10mmx0.5mm https://amzn.to/3mIT24E $7.99 (100 pcs) 3X ABS 10mm Spacer 5.4mm(ID) 9mm(OD) 10mm(Length) https://amzn.to/2Ws7nI0 $9.99 (100 pcs) 4X Copper M3x5x35mm Hex Standoff Spacer https://amzn.to/3jmbI86 $5.59 (20 pcs) Follow us on Twitter: https://twitter.com/aurora_lung