Leapfrog Creatr (Mod) for E3D Titan - Dual Carriage (Horizontal 60mm LM8UU Carriage)

Description

Youtube Of Working Carriage Https://Youtu.Be/Zqkzdlqyl30 - Background -- Existing Carriage With Direct Drive (1:1) Has A Hard Time With Tougher Filaments, Like Petg / Carbon Or Nylon / Carbon, And Direct Drive Directly From Stepper Motor Has "Step Lines" On Extruded Filament, Making Final Part "Wavy" On Surface Of The Part. Not Only That, Direct Extrusion Straight From The Motor Seems Underpowered On Nema 17S, As Most Filament That Should Easily Go Through, Seems To Jam Up, However It Is The Extruder That Fails To Push And "Clicks" At The Motor. Even At 1/32 Microstepping, Extruder Need Further Micronic Steps To Do Most Extrusion Moves. Geared Extruder Is Usually Required For Tougher Filaments, Reliability, Smooth Extrusion, And Power. E3D Titan, Is Readily Available On Market, And Gives 3:1 Ratio On Stepper Motor, Providing 3 Times The Power, Smooths Filament As It Extrudes. Keeping With "Direct Drive" Extrusion (Not Bowden), This Carriage Fits The Bill Making It Easy To Get Reliability With Extrusion. - Similar Style To Existing Carriage For Leapfrog Creatr (Dual Head) - Tabbed Lock-In Groove And Modular Design, However Modified Carriage To Fit E3D Titan (Geared) Extruder, Which Has 11.1Mm Offset From Motor Center (Requiring Slightly Larger Carriage), Currently E3D'S Titan Does Not Has A "Mirrored" Version. Titan Extruder Fits Side By Side In This Arrangement. - No Additional Parts Required, It Has Locking Tabs That Secure The Carriage Once In Place Once Assembled, And Secures The Lm8Uu Bearings. - Also Included Fan Mounting Underneath The Motors To Cool The E3D Hotend. - All Parts Made In 4Mm "Plates". Lock In Tabs On Rear Help Hold The Motor Up. - 2X Locking Pipes For Lm8Uu To Keep In Holes At Proper Distances. (May Be Overkill If There'S Already A Snug Fit, But This Will Ensure That Bearings Will Not Come Out Of Place.) You Will Need: - 4X New Lm8Uu 8Mm Bearings, As Old Bearings Have Been Tacked To Old Carriage (Readily Available On Ebay.) 8Mm Id, 15Mm Od X 24Mm Hgt. 2X E3D Titan Universal Extruder Print Job Requires: - 1/Ea - Motor Plate, Front Fan Plate, Base Plate - 2/Ea - Side Plates, Locking Tabs, And Locking Pipe For Lm8Uu Bearing Threading -- - Fan Plate M4X0.7 Thread - 4 Holes For Belt Driven Tabs, 8X For 40Mm Fans (If Holes Are Not Large Enough For Through Hole) -- Backside For Belt Tab Holes, You Can Put A M4X0.7 Jam Nut, Spot Provided To Jam It In, Provides Additional Support If Threading Is Too Difficult On Plastic. - Motor Plate M3X0.5 Thread - 2 Holes For Drag Chain / Wire Carriage (Note -- Drag Chain / Wire Carriage Should Probably Be Screwed In On Backside (Above 2Nd Motor), Facing Left.) - Base Plate M4X0.7 Thread (Optional 2 Holes For Underside Fan, 10 Mm Apart, Centered Between The 2 Hotends - Apx 54 Mm Apart.) ( Also Included Option For Filament Guide - Original Plates Had Filament Guide Supported On Top With M6 Thread, Option With Fan Plate / Motor Plate Included... Thread The Holes With M6X1.0 Through Holes, Connects Fan Plate With Motor Plate On Top For Additional Rigidity. ) Note: To Lock In Front Tab Requires The Fans To Be Raised, Leave Middle Top Screws In Only, And Swing Both Up To Lock In Front Tab. Swing Back Down Upon Installing Front Tab. Software Instructions (Arduino Config Settings) - Reverse Extruder Direction, Side By Side Config, Both Should Be The Same Direction, Mine Is Set To 'False' On Both E0 And E1. - Calibrate / Change # Of Steps /Unit. For 1/32 Microstepping, I Use Value Of 834.35 Per Unit (Mm). (Or Apx 3 Times Previous Amount.) - (Offsets) Extruder 2 Should Have An Offset On X Axis Of 54Mm From Extruder 1, Either Set In Ariduino Config File, Or In Software As Tool 2 Offset. - Calibrate Z Axis To New Depth (May Be Slightly Lower), Ensure That You Do Not Run The Z Axis Into The Carriage.

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