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

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YouTube of Working Carriage: https://youtu.be/ZQKzDLqYL30 Background - Existing Carriage with Direct Drive (1:1) struggles with tougher filaments like PETG / Carbon or Nylon / Carbon, and Direct Drive straight from stepper motor results in "Step Lines" on extruded filament, making the final part "wavy" on its surface. Not only that, but Direct extrusion from the motor seems underpowered on Nema 17s, as most filaments that should easily go through tend to jam up, however it is the extruder that fails to push and "clicks" at the motor. Even with 1/32 microstepping, the extruder needs further micronic steps to do most extrusion moves. Geared Extruder is usually required for tougher filaments, reliability, smooth extrusion, and power. E3D Titan, readily available on the market, gives a 3:1 ratio on Stepper Motor, providing three times the power, smoothing 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 have a "mirrored" version. Titan Extruder fits side by side in this arrangement. No additional parts are 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 Printer Brand: Leapfrog Printer: Creatr Resolution: 0.28 Infill: 100% Notes: All dimensions are exact fit; I use a little bit of Dimensional Adjustment, -0.20 for items to fit snug in each other's slot without having to file or shave a bit off each slot. # of Outlines / Solid Layers: I use 4 for Top / Bottom / Outline to give a solid outline. Currently using ABS as it is the only thing that will print with 1:1 Direct Drive Extruder. PLA makes for rigid 4mm plates as well. Also had to upgrade Heatbed to AC 110V on SSR to get heatbed up to 110C. Factory had it on 24V which could only reach 60C in 40 minutes. Heatbed is massive 300x350mm, 7ohm across leads, on SSR relay, 4 minutes to 110C, all controlled through PID through software, on same 24V line, to send "signal" rather than power (current) to SSR for transferring 110V AC power to heatbed, recommend to run as PID, rather than Bang Bang (full on, then full off switching). Limited Max Power to 64 in Arduino Configuration.h file. Ask for settings; I will tell you PID values, or run Autotune. 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 Arduino 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.