Chariots Z(X) améliorés pour Dagoma DiscoEasy & DiscoVery

cults3d

2018-02-10 - Thanks to Chikungunya for the videos: Improved Chariots Z(X) for Dagoma DiscoVery & DiscoEasy Improvements: * Quick detachable X axes (after loosening the belt) * Belt tensioner (4 options: 4.5 mm, 9.5 mm, 14.5 mm, and 19.5 mm) with GT2 20-tooth pulley (matching the motor's pulley - see reference and link below) * Linear bearings and centered traction effort in height * Braking by tightening the linear bearings * Direct transmission of force to the lower trapezoidal nut (no risk of backslash) and tension spring above * Sensor mounting location restored to DiscoVery position for complete compatibility with this head: https://www.thingiverse.com/thing:2478810 * Two free holes (with a 20 mm pitch) are available on the rear face of the left cart to add M3 screws (for cable supports or cable chain hangers) * In case of using the 3-vent head, the Z-axis stroke is increased to 220 mm, provided that these high centering blocks are used: https://www.thingiverse.com/thing:2748114 or those ones: https://www.thingiverse.com/thing:2538950 BOM: 9 x M3x8 screws --> for axis X tightening brackets 10 x M3x12 + 10 x M3 nuts --> for linear bearing braking 4 x M3x8 screws --> for motor mounting 8 x M3x12 or M3x16 screws --> for trapezoidal nuts (see reference below) 2 x M3x30 screws --> for vertical axis of the tensioner and horizontal tightening screw of the tensioner. For this latter function, shorter screws can be used depending on available stroke. 1 x M3x14 or M3x15 screw --> for pulley axis... these screws being rare, it is recommended to take an M3x16 and cut it 2 x M3 nuts: one to be embedded in the tensioner, the other for counter-tightening the tensioner. 2 x trapezoidal nuts: "SIZE 8": https://www.banggood.com/T8-Anti-Backlash-Spring-Loaded-Nut-For-2mm-8mm-Acme-Threaded-Rod-Lead-Screws-p-1111893.html 1 x Pulley: 4th type model "D" (Type D: 20T Pulley with tooth): https://www.banggood.com/16T20T-GT2-Aluminum-Timing-Drive-Pulley-For-DIY-3D-Printer-WithWithout-Tooth-p-1099142.html or https://www.banggood.com/16T20T-GT2-Aluminum-Timing-Drive-Pulley-WithWithout-Tooth-For-DIY-3D-Printer-p-1220053.html?rmmds=detail-left-hotproducts__1&ID=514853&cur_warehouse=FR Edit 2015/11/21 For cable clips: * see Madness3D piece available here: https://www.thingiverse.com/thing:2658896 * or RGBA piece: https://www.thingiverse.com/thing:2700544 For chain cable hangers: * see Moustache45 piece, available here: https://www.thingiverse.com/thing:2660582 * Or Erebius (3rd image, 2nd file): https://www.thingiverse.com/thing:2724297 * and/or Madness complete kit: https://www.thingiverse.com/thing:2730932