Watch this video to understand how Ivo is made: https://www.youtube.com/watch?v=RK7_HKCGGZ0


Upload the universal Ivo.gcode on an SD card and insert it in any printer. Launch the gcode from the printer interface, ignore warnings and proceed. Adjust temperature and fan speed once the print starts to fit your filament needs

Printer requirements for the gcodes: preferably 0.6mm nozzle and at least 210mmx210mm buildplate


"Ivo cura" sliced with Cura has slightly different infill pattern with same functionality.


Fits Noctua NF-A20 5V USB pc fan


Cut the fan frame with pliers and attach it mid-print with thick double sided adhesive tape


Cut Hepa filters from "Frameless hepa filter" sheets (link1: https://aliexpress.com/item/4001298732898.html , link2: https://aliexpress.com/item/1005001619559275.html)


For higher fan speed, use a “12V motor speed regulator” with a “12V power adapter”


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Bambu Studio Settings:

Global: 

layer height: 0.6mm
line width sparse infill: 0.72mm
walls: 0
tops: 0
bottoms: 0
infill density: 24%
infill pattern: Rectilinear
length of sparse infill anchor: 1000 (unlimited)
maximum length of sparse infill anchor: 1000 (unlimited)
infill/wall overlap: 100%
detect narrow internal infill: no
infill speed: 40mm/s
reduce infill retraction: no
Part 1

Ivo 4:

line width sparse infill: 1.2mm
infill density: 30% 
infill pattern: Grid
 

Part 2 (ceneterd with Part 1)

Ivo 2:

infill density: 100%
walls: 1
Ivo 3:

line width sparse infill: 1.2mm
infill pattern: Grid
Ivo 5:

infill density: 60%


Insert pause at layer 64 by right-clicking on the vertical bar after slicing


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Cura slicer settings:

Layer Height: 0.6
infill line width: 0.4
Infill Flow: 200%
wall line width: 1
Walls: 0
Bottom Layers: 0
Top Layers: 0
Infill Density: 9% (line distance 4.44mm)
Infill Pattern: Zig Zag
Infill Lines Direction: [0,0,0,30,30,30,60,60,60,120,120,120,150,150,150]
Infill Speed: 30 mm/s
Print cooling: off

Ivo_2 (should be merged with Ivo_1, Ivo_3, Ivo_4)
walls: 1
bottom layers: 100
initial bottom layers: 100
skin overlap %: 90%


Ivo_3, Ivo_4
infill line distance: 8
infill pattern: grid
infill line directions: [0,90]
infill flow: 300%


Pause for fan insertion inserted as follows (uncomment/comment to change for Prusa or Bambulab pause commands): 


G0 F9000 X204.81 Y101.883 Z38.1
;TIME_ELAPSED:4723.181888

;M400 U1 ; Bambulab pause
;M601 ; Prusa Pause

; Generic pause:
G0 X200.000 Y200.000 Z150.000 ; move away from the part
M18 S0 ; disable stepper inactivity timeout
M25 ; pause print
G0 X200.000 Y2000.000 Z151.000 ; buffer lines: some printers pause a few lines below M25
G0 X200.000 Y2000.000 Z152.000
G0 X200.000 Y2000.000 Z153.000
G0 X200.000 Y2000.000 Z154.000
G0 X200.000 Y2000.000 Z155.000
; Generic pause end

;LAYER:62


License Public Domain:
https://creativecommons.org/public-domain/cc0/