BIQU H2 REVO Part Cooling Fan Duct

Mashup/remix of various Part Cooling Fan duct shrouds for my V1E MP3DP https://forum.v1e.com/t/mp3dp-v4-azas-build/37251
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updated May 18, 2024

Description

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2024/5/18 UPDATE:  Uploaded v2 that directs more air, and closer to the nozzle.  v2 should print more easily too.  Latest version of my models are on github, I only remember to update printables occasionally.  Latest model will be at https://github.com/aaronse/v1engineering-mods/tree/main/mp3dp-v4/mods/biqu-h2-fan-duct.  Uploaded some images showing v1 versus v2 of the duct.  Hope that helps, cheers!  

 

Get a good fan.  This fan duct seems to work…  But I noted some potential improvements…  https://forum.v1e.com/t/mp3dp-v4-azas-build/37251/290?u=azab2c
 

Printed 0.6mm nozzle, 0.32mm layer height.  0.2mm would be better, especially for the grub screw threads.

Mashup/remix of various Part Cooling Fan duct shrouds for my V1E MP3DP https://forum.v1e.com/t/mp3dp-v4-azas-build/37251 

Created this after not finding what I wanted :

  • Must allow full motion of tensioner arm, which should be comfortable to access.
  • Must enable dissassembly for dealing with filament jam/clogs.
  • Must leave extruder stepper clear as possible for heatsinks.
  • Must leave front right holes clear for mounting stuff.
  • Must be clear at the front so nozzle can be clearly observed.
  • Must ensure Fan Duct placement is compact and not sticking out too far forward.  I have limited front room due to my MP3DP's polycarbonate lid.
  • Max air flow.  Partial success here, I widened the opening, but could have done more to max flow.
  • Nice to have clip holes for custom grill to mount…

    Parts : 
    • 2x M3x25mm bolts and nuts
    • 2x M8x4mm grub screws/bolts (or shortest you can find, am using M8x8mm from my parts for now).

Looked at various Fan Duct models and other parts.  Related V1E Forum topic at https://forum.v1e.com/t/mp3dp-repeat-h2-build/32485/17?u=azab2c

There’s a bunch on Printables, wading through those options. BTT have one on GitHub too, H2 V2s Revo >> H2 V2S Revo 4020 fan duct.STL 1

List of models I looked at, and incorporated some ideas from.  See  my MP3DP v4 collection https://www.printables.com/@AzaB2C/collections/492494 for links to these and other related parts :

  • 396716-BIQU_H2_REVO_5015_BL-Touch_V0
  • 5370707(thing)--Part_Cooling_Fan_Mount_H2_5015R
  • BTT official-H2 V2S Revo 4020 fan duct
  • 186529-E6_H2_5015_Part_Fan_V2
  • 452491-probwr-v1-BIQU H2 BLTouch Mount V2.3
  • 301723-Radial_Fan_50x15 v8

Intentionally included printable model #'s that inspired this model in the Fusion 360 screenshots attached to this model (see tree browser view on the left).
 

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Model origin

The author remixed this model.

BIQU H2 REVO Part Cooler 5015 & BL-Touch mount
by Simon
Original model was switched to draft or deleted

Differences of the remix compared to the original

  • Changed 5015 Radial Fan orientation to make hotend assembly more compact.
  • Reduced footprint and space occupied on front face of BIQU extruder, allowing other parts to be mounted and/or heatsink(s) on Extruder stepper.
  • Ensured full clearance of the tensioner arm.
  • Parts : 
    • 2x M3x25mm bolts and nuts
    • 2x M8x4mm grub screws/bolts (or shortest you can find, am using M8x8mm from my parts for now).

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