Leonardo3d 3d printer

thingiverse

Hi, I present you the first version of my 3D printer Leonardo3d. This is a Cartesian 3D printer with a build space measuring approximately 300x200x500mm in dimensions (X, Y, Z). The motherboard used is the Duet 0.8.5 with Ethernet connectivity. You can view a YouTube video showcasing this 3D printer at https://www.youtube.com/watch?v=yb82KShk8xY. To build this 3D printer, you will need to purchase several parts from online marketplaces like eBay and Amazon: Aluminum extrusions (T-Slot 20x20mm): You'll require four pieces measuring 100cm each, six pieces of 50cm, six pieces of 40cm, two pieces of 37.5cm, and two pieces of 30cm. Linear rails: Buy four pieces that are 70cm long, two pieces that are a custom length (currently unknown), and two pieces that are 40cm long. All linear rails should have a diameter of 12mm. Z-axis components: You'll need two trapezoidal threaded rods, each measuring 8mm in diameter and 600mm in length. Additionally, acquire two flexible shaft couplers with an inner diameter of 5mm and an outer diameter of 8mm. Bearings: Purchase twelve linear bearings (LM12UU) and two 608ZZ bearings. Motors: You'll require six NEMA17 motors, each rated at 2A, with a shaft diameter of 5mm. Use these for the Z-axis, Y-axis, X-axis, and extruder. Belt, idler, pulley components: Get one GT2 timing belt that is 6mm wide and 5m long (you can cut it to size as needed). Also, purchase three GT2 belt 16-tooth idlers and three GT2 belt 16-tooth pulleys. Heated bed components: You'll need a heated aluminum plate measuring 400x300x4mm with a silicone heater pad that is 300x200mm in size and operates at 24V. Extruder components: Use a Chinese MK8 extruder with a stronger motor (NEMA17 2A) and a 26-tooth drive gear. Printing head components: Acquire an E3D Vulcano printing head with a nozzle diameter of 1.75mm and a 0.6mm orifice. Note that this is a Chinese clone available on eBay. Cables: You'll need ribbon cables rated for 4A, 20-way, and 5m in length. Motherboard: Use the Duet 0.8.5 Ethernet motherboard as specified. Power supply: Get a PC ATX power supply to provide both 12V and 24V (for the heated bed), which can be controlled by a relay. Miscellaneous components: You'll need a large quantity of M5, M4, and M3 bolts, washers, and nuts. To print the various parts required for this 3D printer, you will need to fabricate: X-Axis Pulley 1 x 1 X-Axis Pulley 2 x 1 X-Axis Motor 1 x 1 X-Axis Motor 2 x 1 Y-Axis Motor (Right) x 1 Y-Axis Motor (Left) x 1 Y-Axis Pulley (Right) x 1 Y-Axis Pulley (Left) x 1 Print Head 1 x 1 Print Head 2 x 1 or Print Head 2lvl x 1 Print Head 3 x 1 Layer Fan 1 x 1 Layer Fan 2 x 2 Z-Axis Rail Bearing 1 x 4 Z-Axis Rail Bearing 2 x 4 TR8 Lock x 2 Z-Axis Motor x 2 ZRod Bearing x 2 Z-Axis Bed Screw x 2 ZRail Holder x 16 TSlot Corner x 44 Bed Corner x 4 All the required parts are available for purchase. If you have any questions, feel free to leave a comment and I will respond as soon as possible. Update 1: I have added an updated version of the print head's bottom section, allowing for attachment of a bed leveling sensor (in my case, an Omron proximity sensor with a diameter of 4mm and M12 thread). It is connected to the Duet board as an E0 endstop, functioning perfectly, as shown in the video. Update 2: I have redesigned the X-axis, Y-axis, and part of the Z-axis, changed the X and Y axis proximity sensors, introduced a new extruder carriage, and increased print dimensions by 33% (from 200x300x500 to 250x350x500).