Flsun v400 Universal turbo kit

i assembled the “Universal turbo kit” and i must admit its amazing.

i was inspired by @twin.shepherd.printing tiktok of assembling something like this and went to “experiment” myself (thanks dude)

but everywhere i looked, i needed to dig up all the information instead of 1 place with everything to create a “s1 cooling” experience on my flsun v400.
so i documented everything i did for you to enjoy + my parts & references to all needed “stuff”

“invest” a LIKE if you like the instruction guide & the parts

bill of materials:

• BIQU universal turbo kit (you can by it from different sources, btt store ,ali ,amazon etc…)
• CPAP tube +/- 80cm with ending facing inside (see example here)
• 4 M3x30mm circuit board standoff - for the connector plate (see example here)
• M3 bolts (from the kit) & nuts
• cable ties

printed parts:

• for WS7040 blower:
  • hose adapter - by @kiklhorn (https://www.printables.com/model/1130787-cpap-hose-adapter)
  • CPAP fan mount generic m3 tap - by @Lepresean (https://www.printables.com/model/546952-flsun-v400-cpap-duct/files#preview.file.QqEHZ)
  • blower muffler v8 - by me
• power
  • blower power board v3 - by me
• Hotend Assembly
  • CPAP Duct - by @Robert_Klotz_844898 (i liked this one better then the other options, i think its the “easier” to print, but there are others)

 

assembly instructions

• print all parts (5 items)
• open printer top cover

 

printhead assembly

• remove filament sensor clip
• disconnect all wire fins from printer top
• disconnect the connector panel (4 screws)
• remove 2 cooling fans from sides (4 screws)

• remove the fans wires from the wire bundle
• connect the CPAP duct to printhead assembly
• connect the hose + cable tie
• bundle all the wires + hose
• pass the tube to the printer top via the “connector panel” hole

 

circuit board

• connect circuit boards to “power board panel”
• connect with M3x4 hex screws + 4xM2 “wood” screws (from the kit)

wiring Instructions
from:  “universal turbo kit” WIKI

1. Insert the BLDC driver power cable into the adapter board.
2. Plug the 3-pin XH2.54 connector into the adapter board.
3. Cut the included power and signal cable to your preferred length.
4. Insert the power and signal cable into the adapter board.
5. Connect the power to 24V DC.
6. Connect the signal cable to any fan port (3.3-24V full range compatibility).

• raise the connector panel with M3x30mm circuit board standoff
• install the power mount to printer + connect cables
  • i connected the fan port into the existing fan port panel (one of the 2 black ports of the existing 4010 blowers)
  • connected the power to the robin nano v2.1 24v power input.

blower assembly

• connect blower with the hose adapter + open the blower screws and close them with the adapter
• connect blower to “generic mount” (use 3 small screws from the kit)
• connect muffler to blower + tight by (use 2 small screws from the kit + cable ties)
• connect filter to muffler + tight by ring
• connect mount to grill

 

 

firmware setup for klipper

Insert your fan port pin into the pin section below and copy it to your “printer.cfg” file:

########################################
# Fans Settings
########################################
[fan]
pin: PB1
max_power: 0.8 
shutdown_speed: 0 
cycle_time: 0.005 
hardware_pwm: False 
kick_start_time: 0.100 
off_below: 0.1

ENJOY