thingiverse

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Reprap Prusa i3 Cooling by ProOmicron

...reprap prusa i3 cooling by proomicron thingiverse cooling part for reprap pursa i3

thingiverse

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Prusa i3 Active Cooling Fan by oderbang

...prusa i3 active cooling fan by oderbang thingiverse active cooling fan for prusa i3 includes sketch files and stl

thingiverse

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Prusa i3 Cool Fan by dimdav

...prusa i3 cool fan by dimdav thingiverse work in progress

thingiverse

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Prusa i4 Hexagonal 4cm Cooling Fan by hilmananshori

...prusa i4 hexagonal 4cm cooling fan by hilmananshori thingiverse hexagonal air flow 4cm cooling fan for prusa i4

thingiverse

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Prusa cooling fan shroud 70 mm. by andybryson

...prusa cooling fan shroud 70 mm. by andybryson thingiverse cooling shroud to fit the prusa i3 box with a j-head.

thingiverse

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Sunhokey Prusa i3 cooling fan mount by Dimko1994

...fan mount by dimko1994 thingiverse cooling fan mount for sunhokey prusa i3. center of air flow is on central plane with nozzle.

thingiverse

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Prusa i3 40mm Hot End Cooling fan by kcassidy

...prusa i3 40mm hot end cooling fan by kcassidy thingiverse prusa i3 40mm hot end cooling fan hinged.

thingiverse

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Cool Spool Support for Prusa i3 Boxframe by antoniobeta

...sa i3. the files are hosted in youmagine:https://www.youmagine.com/designs/cool-spool-support-for-prusa-i3-boxframe#!design-embed

thingiverse

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CTC Prusa i3 cooling fan bracket 60x60 by mladjo74

...y mladjo74 thingiverse ctc prusa i3 cooling fan bracket. for 60x60 cooling fan. need 3mm screew. if you need picture cotact me.

thingiverse

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Cooling and sensor mount for a Prusa i3 by Zizibee

...th a e3d-hotend and a 18mm sensor. if you need it with differend dimensions write it in the comments. now for 12 mm sensors, too.

thingiverse

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cooling fan for Prusa i4 by ulitko

...e3d titan extruder. i added the mount and unfolded the ventilator to the top, thus the hot air from the table would not be drawn.

thingiverse

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geetech aluminum prusa i3 cooling fan by yed14

...usa i3 cooling fan by yed14 thingiverse this is for geetech aluminum prusa i3, to help with with quality of prints and bridgeing

thingiverse

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Prusa MK3 cooling duct with a view by MatsErik

...prusa mk3 cooling duct with a view by matserik thingiverse see the nozzle from upfont

thingiverse

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Prusa i3 cooling fan duct by mboros001

...you have a mounting point like in the picture. if needed reposition the fan and simply mount the duct to the fan with super glue.

thingiverse

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Prusa I3 cooling fan intake by DGA

... flows more air, but really, it just looks cool. as with all my designs, i draw in autocad, so you will need to scale it by 25.4.

thingiverse

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Prusa i3 80mm Fan holder for board cooling by buzdaman

...oard cooling by buzdaman thingiverse prusa i3 80mm fan holder for board cooling reduces temperatur of board from 40 to about 30c

thingiverse

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Cooling fan nozzle for bq Witbox and Prusa by Spectre667

...r the material cooling fan in the bq witbox and the prusa. at work, they melted sometimes so i copyed the old one to replace it.

thingiverse

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Prusa i3 (China) cooling system by r70

...wing the extruder and the printable area of one fan. you can set the printable area illumination with led ring diameter of 60 mm.

thingiverse

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Cooling system Prusa i3 rework by 3DPurePrint

...oling system prusa i3 rework by 3dpureprint thingiverse the system is directly attached to the extruder with the original holes.

thingiverse

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prusa i3 sunhokey cooling 40mm by BRAULIO

...ulio thingiverse soporte para ventilador estandar (40 mm) de sunhokey prusa i3. mejora el flujo de aire que refrigera el hotend.

thingiverse

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Double Radial Cooling Prusa i3

...st be removed after printing. 2 radial fans 50 mm x 50 mm x 15 mm are required. otherwise, all parts are plugged into each other.

thingiverse

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He3D prusa Ei3 cooling for 40 mm cooler by sharanchius

...he3d prusa ei3 cooling for 40 mm cooler by sharanchius thingiverse he3d ei3 printer cooling for 40 mm cooler

thingiverse

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Prusa I3 Bowden Cooling Fan holder by Mad972

...35 screw for fixing the parts on the printer and 4 more screw+bolt m3 for nozzle's level fan cooling. news : 40x40 fan holder

thingiverse

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Sunhokey Prusa i3 Cooling Fan Duct by BobChidie

... used a powerful 40x40x28 fan to ensure a good cooling of the parts i'm printing. (i found this fan in an old 1u server rack)

thingiverse

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50mm Supportless, Directed Cooling Fan Duct for MendelMax & Prusa by mic

...a is a remix of the http://www.thingiverse.com/thing:63123 50mm supportless, directed cooling fan duct for mendelmax & prusa

thingiverse

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prusa i3 mk2 cooling fan covers by Dakanzla

...se here's another cooling fan cover for the mk2. wanted a more freaky design than the available cooling fan covers offer :-)

thingiverse

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X carriage with cooling prusa i2 by mkuharic

... hot end cooling all problem's with filament are solved. hot end is well fixed and easy to remove. use standard fan 40x40x10.

thingiverse

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Prusa i3 Power Supply Cooling by buzdaman

...prusa i3 power supply cooling by buzdaman thingiverse reduces psu temperatur from 40 to room temperatur usied with a 140mm fan

thingiverse

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cooling fan duct for a E3DV6 hotend on a Makergear Prusa i2 by chrisqwerty

...dv6 cooling fan duct. no drilling etc. required. this is fixed by sliding it over the existing mounting point for the extruder ;)

thingiverse

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Prusa i3 cordobesa Filament cooling by OPSO

...han 70%. on the other hand it is much more noisier than a normal fan, but the results are that good that is not a problem for me.

thingiverse

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Prusa i3 cooling fan by Nicofr57

...a i3 cooling fan by nicofr57 thingiverse i didn't liked my stock fan so i designed a new one. gonna try and improve it more.

thingiverse

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PRUSA MK2S noctua fun holder for bed cooling by knocky

...r for bed cooling by knocky thingiverse for better, and silent printing, you can adjust the noctua 60x60 fun for your prusa mk2s

thingiverse

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Prusa mk3s+ Extruder Cooling + fscover with M10 pneumatik mount for ptfe Tube by surfalex2000

...ik mount for ptfe tube by surfalex2000 thingiverse prusa mk3s+ extruder cooling + fscover with m10 pneumatik mount for ptfe tube

thingiverse

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cooling for Prusa Hephestos and Witbox by activa1969

...969 thingiverse reprise de l'idée de premium computer mais avec vishttp://www.thingiverse.com/thing:1713314 en cours de test

thingiverse

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Active Cooling Fan v1 PRUSA I3 REWORK by DIVER64

...active cooling fan v1 prusa i3 rework by diver64 thingiverse fan diam 30

thingiverse

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Prusa i3 Rework - Cooling fans by rmcht

...ol your print / cool your extruder. this cooling configuration is perfect to print complex geometries, bridges, large angles...

thingiverse

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Custom 40mm Cooling Fan Nozzel for Prusa Air 2 by AutoMarcio

...ngiverse i've made a fan holder based on mouseas' generic parametric cooling fan nozzel so it would fit my prusa air 2.

thingiverse

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Adjustable extended cooling blower fan mount (Prusa i3 Rework) by RoyPeer

...le extended cooling blower fan mount (prusa i3 rework) by roypeer thingiverse an extended blower fan mount for prusa i3 rework.

thingiverse

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Makerfarm Prusa I3 cooling Fan Mount by KFred25

...usa i3, it attaches by the screws that connect the laser cut pieces, i used some extra longer screws that i had laying around.

thingiverse

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Fan duct for Folger Tech Prusa i3 - 360 degrees cooling by dccharacter

...d cooling for folger tech prusa i3 (mk-7 hotend). i assembled it and pretty happy with how it looks - have yet to print with it.

thingiverse

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Extra 80mm cooling fan x-as prusa I3 by iTopia

...pia thingiverse a simple solution to place an extra 80mm cooling fan on the x-as without adding load to the moving printing head

thingiverse

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Fan Duct 45° for nozzle cooling (Prusa I3 Rework) by SimSim72

...t 45°. it cools only the nozzle, without cooling object to be printed. for led headlight http://www.thingiverse.com/thing:1218714

thingiverse

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Cooling of the filament. Prusa I3 FRANKINSHTAIN by zlouatom

...ng at the rear of the carriage x and when you use a bowden extruder. why frankinshtain? because .... it uses all the stuff )))...

thingiverse

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Prusa i3 rework 1.5 - 40mm Cooling Fan Mount by Alchemyst

...rk 1.5 - 40mm cooling fan mount by alchemyst thingiverse i wanted to add a 40mm cooling fan to the 1.5 rework from emotion-tech.

thingiverse

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Prusa i3 Hexagon 2nd cooling fan by lego7man

...ly after a print. what you need : the printed part one more fan : diameter 30mm. (like the others) 5 screws 3mm x 18mm with nuts.

thingiverse

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Prusa i3 MK3 Cooling Nozzle Upgrade by Bakak

...atically aligns with the hotend, the long hole for the m3 allows lowering or raising the nozzle by 0.5mm. i printed mine in petg.

thingiverse

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Cooling Fan for Sunhokey Prusa i3 (2015) by ck247

...ps://www.youtube.com/watch?v=ki08xubhliu&feature=youtu.be edit: added picture showing different configuration of movable arm.

thingiverse

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cooling duct, Anet A8, Prusa I3 by Marcielo

...n the end of the fan and the bottom of the cooling duct. i used a little bit of plastic glue for increase the addition to the fan

thingiverse

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Cooling stand for (Prusa) spring steel sheet

...side. in the bays on the floor i store the usual small tools such as scraper, brass brush, side cutter, scalpel and the sd cards.

thingiverse

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Active Cooling Fan Ø40 v1 PRUSA I3 rework by DIVER64

...active cooling fan ø40 v1 prusa i3 rework by diver64 thingiverse pla ø1.75 fan ø40mm

thingiverse

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Fan mount for 40mm Supportless, Directed Cooling Fan Duct for MendelMax & Prusa and Reinforced Prusa X Carriage with Slim LM8UU Holder by sivar2311

...verse.com/thing:63123) that fits to reinforced prusa x carriage with slim lm8uu holder (http://www.thingiverse.com/thing:18657).

thingiverse

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Prusa i3 - Extruder Mounted Radial Cooling Fan by Bantum_Works

...fan duct : http://www.thingiverse.com/thing:225126 ( cooling duct that works ! ) more to add here later ... cheers, bantum ...

thingiverse

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Filament cooling fan holder for Prusa i3 X by andr3

...e screw holes at the extruder plate, which i use to attach my cooling fan holder. the opening and holes are made for a 4x4cm fan.

thingiverse

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Prusa i3 MK2S cooling fan nozzle upgrade by Gaugeforever

...ted a really good mk2s fan shroud design for the prusa i3 mk2s. it wasn't uploaded here and i wanted to share with everyone

thingiverse

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Sintron Prusa i3 MK8 Extruder cooling fan mounts & funnel for 25mm fan by deggon

...bracket for the sintron mk8 extruder motor mount used on the sintron prusa i3 printer build. perfect for those long bridges etc.

thingiverse

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Folgertech Prusa i3 Active Cooling Fan by Trashy21

...ed in fanv2.stl (recommended) cura supports are harder to remove, and sometimes stick too much to the small details in the grill.

thingiverse

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Sintron Prusa i3 MK8 Extruder Proximity sensor and cooling fan mounts by lslewis901

...40 mm cooling fan mount/duct, that is designed for the heavy duty mk8 extruder mount used on the sintron prusa i3 printer build.

thingiverse

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Makerfarm Prusa i3v Cooling Fan by BigBadBison

... full list. --update-- 06/01/15 - added an option for an m5x30 bolt 14/02/15 - added a shroud to amplify airflow near the print

thingiverse

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Cool Electronics Support for Prusa i3 Boxframe by antoniobeta

...verse on the files i have included a piece that i didn`t use (framesupportbeta2). you will need, a m8 threaded bar and some nuts

thingiverse

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Prusa I3 MK3 Improved Cooling Duct by gustofusion

...table for petg note: may be best if in your slicer you enable thin wall detection so some of the inner walls are sliced properly.

thingiverse

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E3D-v6 Dual Fan Cooling Duct for Prusa i3v by dhoyt7141

...l have to do! use abs. pla will be too brittle and will likely break when you snap this piece onto the e3d-v6's cooling fins.

thingiverse

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Part Cooling duct mod for Prusa i3 Mk2 by RobotHut

...n the print from the front but also from the side. and this seems to help on the more complex prints.https://youtu.be/qha5xosib3c

thingiverse

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Original Prusa i3 MK2S RamBo Board Cover with extended vent holes for maximum cooling (Modded from the official STL from Prusa) by stevehlau

...re, it should fit perfectly with the bottom cover from the original prusa i3 mk2s. it should work with the original mk2 as well.

thingiverse

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Dual blower filament cooling fan mount for Folger Prusa i3 Dual Extruder by Hydroslide

...wer fans to cool the filament for both extruders. the fans are 50mm blower fans and the mount sits on top of the extruder motors.

thingiverse

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Prusa i3 Mk3 cooling duct for E3D volcano by Yellasing

... this cooling duct. this is not plug and play, as the firmware needs to be changed to allow for the reduced build height of -8mm.

thingiverse

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Extruder and cooling fan bracket - Prusa i3 - 30mm carriage by ffleurey

...ly one screw but that seems fine as a temporary solution. the 80mm fan is at a 30° angle and does not restrict the x movements.

thingiverse

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Prusa i3 Electronics Cooling Fan Mount by OgreMills

...o i decided to make this fan bracket for it. should be good, esp with a big 60mm fan blowing air past all the electronics. enjoy!

thingiverse

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Prusa i3 - E3DV6 assembly with filament cooling fan by H256

...d for the e3d and a mount for 12v 50x50mm radial fan. i've also attached the freecad files, so feel free to modify as needed.

thingiverse

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Prusa Nozzle Mk2 Cooling Shroud with 40mm & 20mm fan mounts. by Haroo

...d an equivalent model i made my own! added a simple 40 mm fan mount with a slot aimed at the tip of the nozzle for print cooling.

thingiverse

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Cooling duct for Sunhokey Prusa i3 with E3D-V6 Hot End by twforeman

...unt to move the ring lower down. modified from http://www.thingiverse.com/thing:714939 to mount to nozzle plate and fit e3d-v6.

thingiverse

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(Nozle & Top layer) 60mm dual cooling braket for prusa i3

... and pressure and to be quiet. brackets for using proximity sensors and brackets for use without proximity sensors are available.

thingiverse

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Upgrade cooling extruder frame Prusa i3 P802M Zonestar by VanTee

... are more solid. thanks for the fanhoder stl file, sorry dont know who made that. dont forget to setup support before printing!!

thingiverse

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Cooling duct fan - Sunhokey Prusa I3 by Minionan

...y at least 20 degrees when activated. i personally print abs on bed heated up to 130-140c. there is no such effect on pla prints.

thingiverse

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360 Cooling Fan Mount for Prusa i3 by baranusluel

...this 360 cooling fan, along with some washers. i suggest rotating the part by 90 degrees before printing to avoid using supports.

thingiverse

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Hypercube prusa Mk3 part cooling fan duct with BLtouch mount by Gunship

...ing the bltouch mount separately. v3 has the mount moved forward bringing it closed to the nozzle there by reducing the y offset

thingiverse

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Annular Cooling for Prusa using 80mm fan by SunGear

...nd the carriage are noticable and should (hopefully) be enough to cool it when using pla stl repair http://cloud.netfabb.com/

thingiverse

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Udpate cooling system prusa i3 by moschito

...ould be used to mount a led that turn on when the fan is in function. to do it you should connect the led directly to its switch.

thingiverse

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MK8 Cooling Fan Duct, RepRapGuru Prusa i3 Remix by culturelight

... mod the handle holding the 40mm fan higher and closer. i previously tried a few other mk8 ducts. this is the 1st one that works.

thingiverse

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Prusa i3 Dual E3DV6 - Custom BLTouch Cooling Shroud

... the sensor at the front - needed a few washers to align it perfectly because of how loose the shroud is but it turned out great!

thingiverse

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Cooling Duct for Prusa MK3 with Slice Hot End by kmccon

... needed to go. (see pictures) initial tests of a problem part, showed that it worked with pla at "normal" temperatures.

thingiverse

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RepRapGuru Prusa I3 V2 Cooling Fan Mount by jmcgall1

...e you have this apart it is a good time to tighten any loose internal bolts that may not have been torqued down from the factory.

thingiverse

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J Head mount with cooling fan for Prusa I3 by DonMarle

...8x screws m3x 20 + nuts 4x screws 3,5 x 22 for an adjustable fan mount: 4x neodymium magnets 5x5x2 metal foil up to 0.3 mm thick

thingiverse

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Anet A8 / Prusa i3 Jet Cone Cooling Fan Cover by SepAvatar

...a8 or other printers that use a similar blower fan. (the thicker part of the cover is supposed to be towards the top of the fan.)

thingiverse

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40mm Supportless, Directed Cooling Fan Duct for MendelMax & Prusa by AeroMonkeyDork

...oling flow across the width of the gap. it also gives more directed flow toward the printed parts at the end of the print nozzle.

thingiverse

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Prusa i3 MK3 Cooling fan Nozzle / Shroud by Petclaud

... bit with water you can get an impression of the airflow of this design and it looks to work as per the design intend - see photo

thingiverse

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Cooling Fan support for Prusa Mendel X Carriage by mgadriver

...com/browse/listing?l=640. use 3mm bolts to attach the fan to the support and a 3mm bolt to attach the support to the x-carriage

thingiverse

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HIC Prusa i3 Fan Duct with Heat Break Cooling by Lugnut_91

...bed with the ducts sticking up. i used supports, probably not necessary though. update: http://www.thingiverse.com/thing:1306170

thingiverse

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Prusa i3 MK2 part cooling fan nozzle by mikkelmmk93

...warped. this design is made to better allow airflow through the nozzle, and to better aim the airstream at the tip of the nozzle.

thingiverse

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Sunhokey Prusa i3 Cooling shroud by jeh241_makestuff

.... i've thought about putting a few slits in for some additional airflow from the big fans. i might remodel it down the road.

thingiverse

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Geeetech Prusa I3 pro B MK8 cooling fan bracket with BL Touch - Adjustable Height

... pro b mk8 cooling fan bracket with bl touch - adjustable height thingiverse remixed to allow height adjustment of the fan/probe

thingiverse

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Maker Farm 6'' Prusa i3 Cooling System by thiagokunz

... of this cover. it's made to perfectly fit the chamber. this closes the chambers gap. check the instructions to assembling.

thingiverse

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Prusa i3 - Extruder Mounted Cooling Fan by Bantum_Works

...hing:1032602 this fan duct is an adaptation of the original from here :http://www.thingiverse.com/thing:252578 enjoy, bantum ...

thingiverse

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Original Prusa i3 MK2 RamBo Board Cover with extended vent holes for maximum cooling (Modded from the official STL from Prusa) by stevehlau

...e the design lately. but i include both versions. please check before you print. it should work with the original mk2s as well.

thingiverse

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Prusa Einsy Case for enclosure with active cooling

... they are used to screw the fans on. it is best to mount everything on the cover first, fan, duct, etc. and then close the cover.

thingiverse

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Prusa i3 Gear Extruder Redesign for E3D hotend with blower cooling by beyondwind

... mount with 40mm fan shroud and blower nozzle. added cable guide on top for split loom tubing. gear 45t and 11t herringbone

thingiverse

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Prusa i3 Mk3 Part Cooling Fan Duct - Simplified by BourbonAndBacon

... almost exactly the same, regardless of orientation. i can now see the nozzle and make adjustments as necessary during printing.

thingiverse

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Prusa I3 Geeetech 40 mm cooling Fan (adjustable height) by rasor

...original, but didn't want to have to mess about with nozzle height adjustments; so made the fan mount adjustable by a few mm.

thingiverse

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GeeeTech Prusa i3 Aluminum MK8 Cooling Fan Bracket by LiquidTick

...ads into them. i printed this with pla at 200 deg c on the nozzle and 60 deg c on the bed. i used 100% infill and a 0.2mm height.

thingiverse

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Artillery Part cooling fan for Prusa MK3 or bear upgrade by Mateomcg

...ering and spade. star may need minor sanding but should push fit into the space tightly and not need anything else to secure it.

thingiverse

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Cooling fan bracket for Makerfarm Prusa I3V by zapta

...this fan doesn't replace the main fan that cools the cooling fans above the nozzle, it is intended to cool off the workpiece.

thingiverse

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Prusa i3 MK3(S) (+ MMU V2) Extruder Cooling Fan Duct

...ver part, but that shouldn't be an issue. thanks to cg-tech for the great design! the link in this post is an affiliate link.

thingiverse

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MK8 Cooling Fan Duct, RepRapGuru Prusa i3 by CutterNorth

...h a noctua fan. the fan is amazing. https://www.amazon.com/gp/product/b009nqlt0m/ref=oh_aui_detailpage_o03_s01?ie=utf8&psc=1

thingiverse

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CTC Prusa i3High performance cooling assembly Attachment by synsi

...t that way. i used an m3 stop nut to screw the parts together. a single washer was used in between the parts to match the height.

thingiverse

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Radial print cooling fans for a Prusa i3 by David_J

...the fans still cool the extruded plastic but most of the air misses the hot-end nozzle block, which stays at the set temperature.

thingiverse

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prusa x carriage reinforced 4 lm8UU for Budaschnozzle with double cooling fan (hot end and part) by jfpion

... think the image is enough. i will post some pics as soon as possible. every thing printed nicely 0.3mm nozzle 0.5mm slic3r 0.9.9

thingiverse

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Prusa i3 / Anet A8 Cooling Fanshroud by Sokailu

...te3: i addet another design, the low profile v6. it has more clearence than the others and a simpler profile for easyer printing.

thingiverse

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HIC Prusa i3 Fan Duct with Heat Break Cooling V2 by Lugnut_91

... or so i realized that it doesn't work worth a shit. so, i made the holes in the circular bit a lot bigger for more airflow.

thingiverse

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Prusa i3 MK3 Part Cooling Fan Duct Remix by JoepWelling

...e part. when printed in less than 150 microns there was an opening of 200 to 300 micron in the layer direction. please update it!

thingiverse

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Additional Cooling Fan Mount for Prusa i3 Mk2 (40x40mm) by Revenire

...ws from the spares included in the kit version. the only parts you need to buy is the 40x40mm fan itself and the required wiring.

thingiverse

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40mm cooling fan duct for Prusa i3 Rework with J-Head by Gravity1337

...ng with them and ended up with this. it has improved print quality quite a lot and i haven't optimized my print settings yet.

thingiverse

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Tukkari TS Prusa Mk3s cooling enclosure duct for PSU V2 by interceptoriii

... performance for cooling, while preventing smells/gases escaping from the main enclosure. video here https://youtu.be/y6qwhrkrrjm

thingiverse

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Prusa i4 Cooling system modification by ZahirSaleh

...ll need to remove the fan connector plastic using a pin (figure it out) and return it back once the wires pass through the base.

thingiverse

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Geeetech Prusa I3 pro B MK8 cooling fan bracket with BL Touch / Proximity Sensor mount by mrzed

...: 50mm blow radial cooling fanhttps://www.banggood.com/3d-printer-12v-dc-50mm-blow-radial-cooling-fan-p-980653.html?rmmds=myorder

thingiverse

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40mm fan adapter for print cooling fan holder for MakerFarm Prusa i3 by TimeFramed

...0mm fan; it press-fits into the adapter, and the adapter fits into this fan holder thing: http://www.thingiverse.com/thing:228536

thingiverse

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Prusa MK2 Better Part Cooling Fan Duct with support by tomasro

...f support that is far away from the hotend, and thus keeping the part cooling fan level and out of range from hitting your model.

thingiverse

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Prusa I3 MK2 hotend parts cooling fan updated to the new MK3S R3 design by tanktracks

...self. tldr: newest prusa mk3s style tilted fan design parts cooling solution for your old mk2s without any new hardware necessary

thingiverse

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Prusa i3 mk2 60x60x25 cooling fan mount by DiAleksi

...tached to the extruder cover with one bolt on the right side and tightened against the cover with the cable tie on the left side.

thingiverse

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MakerFarm Prusa i3 Magma cooling system remix by papergeek

... closed small gap in bolt hole shoulders on main duct shroud 10 oct 2013 - added fan cover (verbatim by thiagokunz, just rotated)

thingiverse

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Prusa i3 MK3 - Cooling with a view by jltx

...ith my laser mod. 3/20/18 update: based on feedback, improved fit for bed cover, slightly increased pinda hole, adjusted airflow.

thingiverse

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Prusa i3 mount for MK8 extruder and an E3D hotend NOW WITH LAYER COOLING by StevenQ-NE-UK

...the duct. you can see why a layer cooling fan is good for pla in my youtube video herehttps://www.youtube.com/watch?v=gtdwd6tbnqk