Large Format 3d Printer

Created by @rainier-ps

JOURNAL.md – Large Format DIY 3D Printer

Total Time Spent: 52 hours Duration: 15–23 June 2025 Daily Avg: ~5 hours


15 June 2025

  • Time Spent: 5 hours
  • Activities:

    • Defined project goals and design constraints
    • Compared Cartesian vs CoreXY vs Delta layouts
    • Chose Cartesian for simplicity and rigidity
    • Began sketching rough layout ideas and BOM draft
  • Image: Brainstorm


16 June 2025

  • Time Spent: 5.5 hours
  • Activities:

    • Finalized component list and shortlists major parts
    • Designed and sketched rough dimensions for frame
  • Image: Part Selection


17 June 2025

  • Time Spent: 5.5 hours
  • Activities:

    • Started 3D modeling using Fusion 360
    • Created full frame structure using 2020 extrusions
  • Image: Frame


18 June 2025

  • Time Spent: 5 hours
  • Activities:

    • Modeled Y-axis smooth rods and bearing holders
    • Modeled Z-axis motor mounts, leadscrew guides, and couplers
    • Modeled Z vertical supports and lead nut mounts
    • Added placeholders for hotend and X-carriage
  • Image: Z-axis


19 June 2025

  • Time Spent: 5.5 hours
  • Activities:

    • Finished modeling X-axis assembly with motor, pulley, and belt path
    • Created toolhead and carriage mount for MK8 extruder
    • Verified spacing between axes and fitment
  • Image: X-axis


20 June 2025

  • Time Spent: 5 hours
  • Activities:

    • Modeled bed carriage plate and linear bearing blocks
    • Added heated bed PCB to model
    • Added PSU and PSU mount to rear frame
  • Image: Electronics


21 June 2025

  • Time Spent: 5 hours
  • Activities:

    • Added display mount bracket and dimensions
    • Performed design cleanup and dimension review
    • Exported final screenshots and prepared CAD files
  • Image: 3D Model


22 June 2025

  • Time Spent: 6 hours
  • Activities:

    • Started schematic design on EasyEDA
    • Wired motors, endstops, heaters, fans, and thermistors
    • Checked RAMPS 1.4 and TMC2209 compatibility
  • Image: Wiring Diagram


23 June 2025

  • Time Spent: 5.5 hours
  • Activities:

    • Completed wiring diagram and schematic labels
    • Created detailed schematic notes document Wiring Description
    • Uploaded final CAD, firmware, and wiring files to GitHub
  • Image: System Schematic


24 June 2025

  • Time Spent: 4 hours
  • Activities:

    • Performed final checks and refinements
    • Documented all refinements and adjustments
    • Prepared complete project submission
    • Verified all GitHub repository contents and documentation
    • Finalized README.md
  • Image: Final Checks


📸 All images/screenshots are saved under the /images/journal/ folder and referenced in the README.