Zortrax M200 radial fan shroud for extruder heatsink
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#####Important For A Completely Revised Version, Move Here: Https://Www.Thingiverse.Com/Thing:2797152 _____________________________ _____________________________ After Some Tests With The Beautiful D6 Blower Fan Upgrade By _Zincboy_ (Http://Www.Thingiverse.Com/Thing:1666096) On My Zortrax M200, I Decided To Remix His Design To Better Fit My Printer. I Think _Zincboy_ Has Tilted The Fan For Some Reason, Perhaps To Improve The Airflow. But After A Test With The Blower Positioned Parallel To The Heat Sink I Did Not Detect Evaluable Differences. I Don'T Own The D6, But The Original Shroud Doesn'T Fully Exploit The Cooling Fins, Then I Increased The Lower Opening To Expand The Area Hit By The Air Flow. The Radial Fan To Be Used Is The Bfb0412Hha-A That You Can Order From Digikey, Mouser Etc. The Fan Is Locked In Place With #3 Wood Screws. You Need Also A 12V Regulator Because The M200 Send A Voltage Spike Which Destroys The Fan During Startup And Also Because The Operating Voltage Is Beyond The Specification Of The Bfb0412Hha-A. I'Ve Opted For The Pololu D24V5F12 (Https://Www.Pololu.Com/Product/2846), A 12V/500Ma Switching Step-Down Well-Known By The Fpv Racing Drones Users. It Is Located Between The Shroud And The Fan, In A Dedicated Housing. Its Wiring Should Not Be A Problem. Even With The Step-Down, The Fan Power Supply Isn'T Linear Stabilized, You Need A Capacitor On The Step-Down Input To Have Steady 12V. See Below For Wiring.
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