Effector mounted blower duct for Delta 3KU
Description
Most Designs For Part Cooling Fans And Blowers For Delta Printers Tend To Reduce The Available Print Area Due To The Chance Of Colliding With The Printer Columns Or With The Effector Rods During Printing. The Intent Of This Design Was To Avoid This Issue By "Clinging" The Design Around The Effector Plate And Careful Consideration Of All Critical Head Positions To Avoid Collision. Another Design Consideration Was To Maximize The Air Flow By Thickening The Duct In One Dimension Where The Other Dimension Is Constrained. This Will Print Fast Thanks To The Fact It Is Done In **Vase Mode** To Ensure The Part Is Hollow. It Is Also Very Light. Please Let Me Know If You Have Any Suggestions Or Comments. **Some Absolutely Critical Things:** - Print The Main Part (The Duct) In **Vase** Mode - Configure This In Your Slicer (Or You Will End Up With A Useless Filled Duct) - Set Number Of Layers For The Bottom To 0 In Your Slicer Or **"No Bottom"** Depending On The Slicer. - Print The Main Part Vertically (As The Stl Shows) With **No Supports** (Or You May End Up With Impossible To Remove Supports Inside The Duct) **Not So Critical But Advisable:** - Print With Your Existing Cooling Fan Turned On (The Inclinations Are Not Overly Steep, But This Will Help With The Surface Finishing) - Pla Or Abs -- It Does Not Matter - I Printed Mine In Pla **Assembly:** - Attach The Snap Fit Bracket To The Main Part Using 2 Mm Conical Head Wood/Metal Screws Or Superglue (But Pay Attention To The Position If You Are Gluing - It Needs To Align With The Holes) - Install The Blower In The Duct (Use **Two 20Mm Long M3 Screws And Nuts**) - Fit The Assembly As Tall As Possible So It Clears The Bed By ~2Mm When The Nozzle Touches The Bed. - Depending On The Position Of Your Nozzle Relative To The Effector Plate You May Need To Lower The Hotend So That The Base Of The Duct (The Semi-Circular Piece That Directs The Air Around The Part) Will Not Touch The Bed. If This Is Too Much Work For You I Have Uploaded **Another Version** That Will Provide You With A Lot More Clearance (But Less Air Direction). - Wrap The The Bracket With A Tie-Wrap Around The Extruder Heatsink (Don'T Worry With Heating The Plastic - That Area Is Cold). (**Look At The Picture**). - Optional Design Bonus: Use The Square Wholes On The Top With Tie-Wraps To Straighten The Extruder Wiring And Filament Tube. Here Is The Blower I Used (You Will Need One With Exactly The Same Size) Https://Www.Amazon.Com/Gp/Product/B015S5Xfje/Ref=Oh_Aui_Search_Detailpage?Ie=Utf8&Psc=1
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