Tinybot Desktop Mini 3D Printer

thingiverse

This is a small size desktop 3D printer. I have noticed most of the parts I print are small and I was looking for a second 3D printer. <h1>Features</h1> <strong>Build Volume</strong> X: 100 Y: 100 Z: 100 <strong>Quick and Accurate</strong> It uses a short bowden tube setup with a high torque extruder. Thus it was possible to design a light weight printhead for quick travel moves. Belt tensioners are integrated as well as an adjustable Z endstop. <strong>Silent</strong> Uses Trinamic's TMC2208 stepper motor drivers with high torque and speed in ultra silent operation. <strong>Clean</strong> Comes with cable management. All axis use drag chains for durable and clean wire guidings. <strong>Affordable</strong> Common parts <strong>Easy to use</strong> preconfigured Marlin firmware and Slic3r profiles <h1>Bill of Material</h1> Download latest BOM file with Aliexpress links <strong>Electronics</strong> - Arduino 2560 + RAMPS 1.4 - 1x Radial Fan 5010 12V/24V - 1x Axial Fan 3010 12V - 3x Stepper Motor Driver Board TMC2208 - 1x Stepper Motor Driver Board A4988 - 1x LCD Adapter - 1x MKS Mini 12864 LCD with Cables - 1x SD-Card - 3x End Stop RepRap Style <strong>Extruder and Hotend</strong> - E3D Titan (for Bowden Setup) - E3D V6 with 0.4mm Nozzle - E3D V6 Silicone Sock - Teflon Bowden Tube do=4mm di=1.9mm l~250mm <strong>Power Supply</strong> LED supply Power Brick - 12V with 5A without heated bed --or-- - 12V with 10A for a printer with heated bed <strong>Drivetrain</strong> - 2x GT2 Pulley 20T 5mm bore w=6mm - 5x GT2 Idler 20T 5mm bore w=6mm - 5m GT2 Belt w=6mm - 6x LM8LUU Linear Bearings - 1x T8 Threaded Rod with 8mm Lead (4 Start) l=200mm - 1x T8 Lead Screw (4 Start) - 2x KFL08 Bearing Mount - 1x 8mm/5mm Flexible Shaft Coupler (these simple ones) <strong>Stepper Motors</strong> - X: NEMA 17 28mm 10mH, 0.6A, 25Ncm - Y: NEMA 17 28mm 10mH, 0.6A, 25Ncm - Z: NEMA 17 28mm 10mH, 0.6A, 25Ncm - E: NEMA 17 20mm 4.5mH, 1.0A, 13Ncm <strong>Heated Bed</strong> * 120mm Heated Bed (approx. 48W) * Insulation Material underneath (wind shield cover, PU foam, cardboard, etc.) * Print Surface to your liking (PEI, BuildTak, PVA glue) <strong>Cable Management</strong> - Drag Chain 7x7 for X, Y - Drag Chain 10x10 for Z - Cable Ties <strong>Metal Goods</strong> - 1x Aluminum Profile 6mm slot 2020 235mm for X - 1x Aluminum Profile 6mm slot 2020 240mm for Y - 1x Aluminum Profile 6mm slot <b>2040</b> 290mm for Z - 1x Aluminum Profile 6mm slot <b>2040</b> 85mm for YZ - 2x 8mm smooth rod 225mm for X - 2x 8mm smooth rod 215mm for Y - 2x 8mm smooth rod 250mm for Z - 3x Straight Steel Bracket - 4x L shaped Steel Bracket - 4x T Slot Corners for 2020 Profile - 100x Hammernuts M5 - M3, M5 Screws (M3x10, M3x20, M5x8, M5x10, M5x20) - M3, M5 Nuts <h1>Configuration</h1> <strong>Reference Voltages of Stepper Drivers</strong> - X: Trinamic TMC2208: 0.8V - Y: Trinamic TMC2208: 0.8V - Z: Trinamic TMC2208: 0.8V - E: Allegro A4988: 0.65V <strong>Firmware</strong> Download latest configuration.h and configuration_adv.h for Marlin 1.1.9 in Files Section <strong>BOM</strong> Download latest bom.ods in Files Section <strong>Assembly</strong> Find a 3D PDF in the download section. Use it for the arrangement of the parts. You need a compatible reader, most third party does not support 3D. I needed to install Adobe Reader. Filment path: for better print quality with hard to rotate filament spool holders, mount the bowden strain relief to the 2040 Z exstrusion, above the ramps board. <strong>Know Issues</strong> - Display (SD-Card) Circuit Board needs to be cut or use some rubber feets <strong>Changelog</strong> 2019/01/12 added missing chain mount for Z axis 2019/02/10 improved hotend heatsink airflow, cleaned up BOM 2019/07/28 fixed aluminum profile type 2019/12/20 added bowden filament strain relief