Davinci MiniMaker Complete Overhaul

thingiverse

My first printer was a Davinci MiniMaker, received for free as a birthday present. However, within 1 month, I was sorely disappointed with the proprietary filament as well as the limited stock firmware (that you were forced to use), and so within 2 months I bought a new Ender 3 to use instead! However, I aimed to eventually replace all proprietary parts from this printer and enhance its functionality. This overhaul intends to accomplish the following: -Redesigned hotend mount to allow for use of more common hotends - in this case a stock Creality MK8 hotend -Direct drive -Part cooling fan -New PSU -Small heated bed -New motherboard + Raspberry Pi to use Klipper WARNING: Project requires some knowledge of soldering as well as handling mains electricity, as a PSU will be set up. -130821- DaVinci Overhaul project is almost complete. Electronics work and movement systems work well. I exchanged the Z axis motor for a more standard NEMA 17 Stepper motor. To use the original leadscrew, a 5mm to 5mm coupler is required. Take note that to use the original DaVinci motors, the wires are swapped, you will need to swap the positions of the inner/outer 2 wires for the motors to work properly. All endstops have been replaced in favour of a BLtouch for Z and sensorless homing for X and Y. The printer runs on Klipper. As of now, I am awaiting a new Creality hotend as well as the heated bed, and 165mm glass surface before printing can commence. However, movement systems work well. HARDWARE REQUIREMENTS Electronics: NEMA 17 Motor - replacement z-axis motor Meanwell LRS-350-24 PSU Power Socket Inlet for PSU Plug for PSU to connect to mains SKR MINI E3 V2.0 Raspberry Pi Zero W (preferably with headers) 4 x wire to connect Raspberry Pi GPIO to SKR MINI E3 V2.0 BLtouch/clone 24V Hotend Fans (Up to user preference. Use the fans you would use for the cooling fan duct you normally use.) 24V Ender 3 Hotend 24V Motherboard Fan (4020) 4-to-6 pin Stepper Motor wires (x4) 12 AWG Wire (connects PSU to Motherboard) Custom Heated Bed (sourced from KEENOVO for me. The schematics included in the Thing files were made with a 1cm radius safety margin away from the plastic mount points, and 1.5cm distance away from the edge of the buildplate) Other: 2xLM8UU Linear Bearing 5mm-to-5mm coupler M3, M4, M5 Screws and nuts (no specific number yet) Glass Bed Clips 165mm Glass Bed Nylon Zip-Ties (3.5mm width) 8mm Diameter spring (Stock Ender 3 bed leveling spring works well) OTHER LINKS: These are Things I have used and listed as 'remix' source files, but did not include them in the STLs as they remain unchanged from their original posts. https://www.thingiverse.com/thing:4012555 https://www.thingiverse.com/thing:4338350 https://www.thingiverse.com/thing:4619895 Tutorial on how to connect Raspberry Pi to the SKR motherboard using TX and RX pins (method used here) https://www.youtube.com/watch?v=AtW3GqkKUz8