Milan's CoreXY Build Log
a cursed journey to building a 3d printer with vibes and sleepless CAD
Total Time Spent So Far: 40 Hours
Log 1: CoreXY vs Cartesian Wars
googled âcorexy vs cartesianâ and watched videos for hours.
decided corexy looks cleaner and cooler so i'm doing that.
folder created: CoreXY_Build, and it now contains 40 screenshots and 2 memes.
Time Spent: 2 Hours
Log 2: Idlers Are a Scam
found out that idlers need to be aligned perfectly or the belts become noodles.
sketched something random in Fusion and tried placing 1 X LeftIdlerMount.stl.
everything looked okay until i realized nothing was actually constrained.
Time Spent: 2 Hours
Log 3: Motor Mount Geometry is Black Magic
placed the A and B motor mounts and tried making them symmetrical.
fusion 360 said ânah.â had to redo half the sketch.
ended up with 2 different-looking mounts and prayed theyâd work.
Time Spent: 2 Hours
Log 4: Feet First
modeled the bottom feet and tested clearances.
realized my bed might scrape the PSU mount lol.
redesigned the feet like 4 times.
Time Spent: 2 Hours
Log 5: Y-Carriage Confusion
started mocking up the y-carriage setup.
couldnât tell which way was front anymore.
added dummy blocks for top and bottom.
Time Spent: 2 Hours
Log 6: The Guide Tube Mount
decided to add the filament guide path now instead of later.
made a custom part that looked weirdly like a flute.
Time Spent: 1.5 Hours
Log 7: The Endstop Slide Crisis
wanted to add endstops, forgot to plan their placement.
made a part called âendstop_slideâ and it just floats there.
works in theory. not tested in the physical realm yet.
Time Spent: 1.5 Hours
Log 8: Z Motor Woes
figured out the z-motor position after too long.
used Right MK1 and Rear+Left combined motor mounts.
alignment was a pain but at least it looks clean now.
Time Spent: 2 Hours
Log 9: Power Inlet Engineering
added a slot for the power inlet, measured nothing, eyeballed everything.
made it fit using the move body
tool 14 times.
Time Spent: 1 Hour
Log 10: Rear PSU Hopes
decided to go with a rear PSU mount setup.
modeled the rear PSU mount and started checking airflow paths.
Time Spent: 2 Hours
Log 11: Belt Path Madness
tried visualizing the belt loop path.
rotated gantry components 500 times.
added mock pulleys and tensioners (they float too).
Time Spent: 2 Hours
Log 12: X and Y Carriage Mesh
finally put together both x and y sides of the gantry.
printed test versions of left/right carriage tops.
Time Spent: 2.5 Hours
Log 13: Side PSU Mount Exists
added the side PSU mount. fits awkwardly but iâll allow it.
debated moving it again but left it in for now.
Time Spent: 1 Hour
Log 14: Z Ledges Exist Now
designed supports to hold the bed plateâledges for linear rails.
used 3 identical supports for symmetry.
Time Spent: 1.5 Hours
Log 15: Bed Mount Bracket Bravery
modeled the bed brackets. printed left, right, and rear.
tweaked holes after first test didnât align.
Time Spent: 2 Hours
Log 16: Internal Cable Path Setup
ran pretend wires through fusionâs comment boxes.
figured out tube routing from extruder to hotend.
Time Spent: 1 Hour
Log 17: Rear Mount Debugging
rear left motor mount was slightly offâfixed by mirroring.
also redesigned the rear top plate to match spacing.
Time Spent: 2 Hours
Log 18: Final Folder Chaos
organized all STL files into named folders.
renamed half the files to actually make sense.
made render screenshots and a gif for the gram.
Time Spent: 2 Hours
Log 19: Final STL Exports
cleaned up fusion timeline.
final export of all 30+ STL files for slicing.
Time Spent: 1.5 Hours
Log 20: Writing This Log
decided i didnât want to forget how scuffed this journey was.
writing markdown logs while fusion lags in the background.
Time Spent: 1 Hour
status update: it might work. or explode. but it looks real.
printer is coming to life slowly, piece by piece.
itâs not done yet, but itâs got soul.