Dual feed extruder by rcmonitor
Description
>Developed To Extrude 3Mm (2.85Mm) Filament Via E3D Hotend. >Can Be Modified To Use 1.75Mm Filament By Making Appropriate Hobbed Axles. >X Carriage Mounting Bolts Offset 24Mm ###Design Goals: - Improve Extrusion Accuracy; - Improve Extrusion Stability; - Improve Filament Reaction; - Increase Filament Pressure; - Decrease Filament Slipping Possibility; - Increase Retraction Accuracy; - Increase X-Axis Available Print Length; - Provide Easier Maintenance; - Improve Attachement To X-Carriage; - Achieve Low Weight; - Provide Cable Management; ###Pros: - Extrusion Is Very Accurate (+/- 1Mm Calibration On 100Mm Extrusion); - Very Stable Results Even Under Pressure (Important For First Layer On Non-Planar Heatbeds); - Very Accurate Retraction Due To Almost No Backlash; - High Maximum Filament Pressure Due To Bigger Hobbed Axle Diameter And Two Hobbed Axles; - Filament Is More Responsive Due To Reduction Of Length Between Hobbed Axle And Nozzle; - Extruder Stepper Motor Not Crossing Z Threaded Rod On The Left Side, So X Homing Point Can Be Moved To The Left (I Was Able To Reach 216Mm X By 206 Mm Y Print Area After Some Heatbed Modification); - Designed To Be Easily Opened To Change Filament / Cleanup; - Remembers Filament Hold-Down Tension Setting; - Gears And Hobbed Axles Can Be Removed With No Tools (Nuts Can Be Placed, But Are Redundant); - Places For Zip-Ties To Get Cables In Place. - Really Lightweight (For Dual Extruder) Due To Hk1210 Bearing Usage For Hobbed Axles. With Aluminium Axles Only 90 Grams Heavier Than Wade'S Extruder; - No Need To Center Drive Gear; - More Steadily Attached To X-Carriage Due To Bigger Attachment Plane. ###Cons: - Parts Are Not Easily-Printed, Especially Extruder Body And Clamp Plate; - Lots Of Work To Remove Supportive Structures From Body And Clamp Plate; - Lathe Required To Craft Hobbed Axles; - Some Parts Are Not Easy To Obtain (M3X50 Bolts, M2 Threaded Rod); - Y Axis Print Area Moves 10-15Mm Towards Ymax (Can Be Fixed By Y-Axis Calibration). Bom --- ###Printables: - Extruder Body __1Pc__ - Drive Gear __1Pc__ - Big Driven Gear __1Pc__ - Small Driven Gear __1Pc__ - Clamp Plate __1Pc__ - Latch __1Pc__ - Latch Fixer Axle __1Pc__ - Latch Fixer Axle Knob __1Pc__ ###Hardware: - Din 618 Hk1210 Bearings __4Pcs__ - Din 625 Skf 608 Bearings __2Pcs__ - Bolt Din 912 M3X50 __3Pcs__ - Bolt Din 912 M3X45 __2Pcs__ - Bolt Din 912 M3X14 __4Pcs__ - Setup Screw Din 913 M8X30 __2Pcs__ - Setup Screw Din 914 M3X6 __1Pc__ - Screw Din 84 M2X12 __1Pc__ - Nut Din 934 M3 __4Pcs__ - Nut Din 934 M2 __5Pcs__ - Washer Din 125 M3 __6Pcs__ ####Either - Bolt Din 931 M12X80 __1Pc__ - Bolt Din 931 M12X100 __1Pc__ ####Or - Hobbed Axle 12X72 __1Pc__ - Hobbed Axle 12X94 __1Pc__ - Nut Din 439 M12 __2Pcs__
Statistics
Likes
78
Downloads
0