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3dprinter

Created by @kermitsgonnakermicide

CoreXY DIY Printer Build Log

Total Time Spent So Far: ~37 hours

Day 1 – Research (June 14th)

After evaluating various printer designs, I decided to build a CoreXY printer because of its high speed, accuracy, and reliability compared to traditional bedslinger designs.
An enclosed build was important to me as I want to print higher-temperature filaments like PETG, ABS, or Nylon with consistent results.

Key design considerations:

  • Considering a rail-driven system instead of fully belt-driven for added rigidity (still undecided).
  • Budget allocation for a BLTouch auto-bed-leveling sensor.
  • Proper printer enclosure for material versatility and print quality.

Time Spent: 3h

Day 2 – Frame Assembly (June 30th)

Started building the frame using 2020 aluminum extrusion, with a total cage size of 410x260 mm. This forms the main structural base for the printer.

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Time Spent: 5h

Day 3 – Gantry Build (June 5th)

Returned to the project after a short break and made major progress:

  • Added corner brackets to strengthen the frame.
  • Increased printer height by 30 mm for more build volume.
  • Completed most of the gantry assembly, using NEMA 17 motors, MGN12 linear rails, and a belt-driven motion system for now.

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Time Spent: 10h

Day 4 – Z-Axis Assembly (June 10th)

Focused on the Z-axis assembly today and added some quality-of-life improvements like adjustable printer feet.

  • Used two stepper motors for Z-axis movement.
  • Planned to use a 220x220 mm heated bed (link).
  • Built on linear rails with belt-driven carriages for smooth and stable vertical motion.

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Time Spent: 12h

Day 5 – Hotend & Extruder Setup (July 25th)

Worked on the EVA 2.4-based hotend assembly:

  • Planning to use a Bambu Labs hotend for reliability and easy availability in India.
  • Extruder will be an LDO Orbiter for high precision and lightweight direct drive.

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Time Spent: 7h

Day 6 and 7 - Requested fixes and updates to readme(Aug 6-7)

Changed the Z axis to have 3 steppers(same assembly)
zaxis Added the back electronics stuff(PSU, raspi, SKR 1.3 mobo)
backthing And worked on updating the README and Journal!!