Delta Smart Effector Circular Fan Duct
Description
Quick Start ----------- This Thing Is A Circular Or Semi-Circular Fan Duct For Use With The Duet3D Delta Smart Effector. It Consists Of Two Parts: * Effectorcircularfanduct -- This Is The Fan Duct Itself. I Provide Three Variant Stl Files, For 180, 270, And 360 Degrees Of Surround. * Effectorfanbracket -- This Is A (Very Slightly) Modified Version Of The Bracket That Attaches The Fan To The Duet3D Delta Smart Effector. I Provide Both Openscad (.Scad) And Stl Files For Both Parts. If You Want To Simply Print And Go, Print Both The Effectorfanbracket.Stl File And The Effectorcircularfanduct-{Angle}.Stl File For Whatever Amount Of Surround You Desire. The Benchies In One Of The Photos Illustrate What Happens When Printing Pla On My Printer When I Use No Cooling (Left), The Fan Duct Design Published By Dc42 (Https://Www.Thingiverse.Com/Thing:2467663; Middle), And The 180-Degree Version Of This Fan Duct Design (Right). As You Can See, The Biggest Jump In Quality Comes From No Cooling To Cooling With Dc42'S Fan Duct Design; However, Dc42'S Fan Duct Still Leaves A Small Blemish On The Benchy'S Prow. Moving To My 180-Degree Fan Removes This Final Blemish. I'Ve Seen No Improvements Moving Up To The 270- Or 360-Degree Versions; However, It'S Possible That Some Prints Would Benefit From More Than 180 Degrees Of Duct Coverage. On The Other Hand, The 360-Degree Version Is Heavier And Obstructs The View Of What'S Happening At The Nozzle. I'Ve Been Using The 270-Degree Version. Additional Hardware ------------------- Assembling Everything Will Require: * The Same Two M3 Screws And Nuts That Dc42'S Original Fan Would Require To Connect The Effectorfanbracket, 40Mm Fan, And Effectorcircularfanduct. In Theory, 16Mm Screws Might Suffice, But In Practice, You May Need 20Mm Or Longer Screws. * Two Somewhat Shorter Screws (12Mm Or A Bit Longer) Are Optional; They Can Secure The Bottom Of The Fan To The Fan Duct, Slightly Improving Airflow Efficiency. (No Nuts Are Needed For These Screws; They Simply Screw Into The Plastic.) * You Will Also, Of Course, Require Two Magballs And Two M3 Nuts To Attach The Effectorfanbracket To The Delta Smart Effector. Customization ------------- My Fan Is A 40X40X10Mm Fan. If Yours Is A Different Size, This Thing Will Require Adjustment. A Thinner Fan Might Work Ok With A Relatively Minor Tweak To Effectorfanbracket So As To Lower The Assembly To Compensate; But A Thicker Fan Might Require Adjusting The Angles Of Both Parts. A Fan That'S Larger Or Smaller Than The Square 40Mm Size, Or That Takes A Different Form Entirely (Like A "Blower" Fan), Will Require Still More Significant Changes. If You'Re Comfortable With Openscad, You Can Easily Customize The Effectorcircularfanduct.Scad File In A Couple Of Ways: * You Can Add A Recycling Symbol By Editing The Recyclenum Variable On Line 10. (See Below.) * You Can Set How Many Degrees Of Arc The Fan'S Vents Cover By Editing The Ringdegrees Variable On Line 15. You Can Adjust Several Other Variables On Lines 18-41, To Make Other Tweaks, Such As Adjusting The Thickness Of The Shell (Fanshellthickness) Or Where The Airflow Is Aimed (Targetz). In Any Case, If You Make A Change, You Must Rebuild The Stl File Using Openscad. The Stl Files I Provide Do Not Include A Recycle Symbol, Since I Don'T Know What Materials You'Ll Use. If You Want To Have A Recycle Symbol, You Must Edit The Recyclenum Variable And Copy The Recycling_Symbol.Scad File From The Openscad Recycling Symbol Library (Https://Www.Thingiverse.Com/Thing:216963) To The Same Directory As Effectorcircularfanduct.Scad, Then Rebuild The Stl File. The Effectorfanbracket That I Provide Is A Slight Variant On Dc42'S Design. Although Dc42'S Original And My Fan Duct Should Theoretically Work Together, On My Printer, I Found That This Combination Caused The Fan Duct To Droop A Bit -- Enough That The 360-Degree Version Would Scrape The Build Plate Or Part. Thus, I Altered The Angle Of Dc42'S Effectorfanbracket, Changing It From 70 Degrees To 74 Degrees. This Fixed The Problem. If You Need To Tweak This Detail, You Can Do So By Editing The Angle Variable On Line 13 Of Effectorfanbracket.Scad. Alternatively, If You Find That My Fan Duct Lifts Up, You Can Try Using Dc42'S Original Effectorfanbracket.Stl File From Https://Www.Thingiverse.Com/Thing:2467663. If Your Hotend Is Shorter Or Longer Than A Standard E3D V6 (Such As If You Use A Volcano Hotend), You May Need To Tweak The Effectorfanbracket, Too. I Haven'T Tried It, But Print Cooling Fan Mount For Duet3D Pcb Effector And E3D V6 Volcano (Https://Www.Thingiverse.Com/Thing:2573606) Might Be Useful.
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