So I thought I would start a thread on this and share my 3D printer build from start to finish. I have been planning this for almost a year now and collecting parts and materials slowly. For anyone who doesn't know, I work on a large range of 3D printers in the field such as SLA, power deposition, DLP, SLS and FDM for 3Dsystems and Onyx. The main goal of this build is to produce a robust, industrial scale printer which high end parts, high precision and utilising as much recycled parts as possible. Primary design features for the printer: Floor standing printer Lower cabinet stand for long term filament storage that will be climate controlled Climate controlled / insulated build chamber Targeting 600x600x600 build envelope External steppers from build chamber to minimise heat stress Print bed will only move in the Z axis at the most to improve print reliability Quad extruders No extruder motors on print head carriage to minimise potential inertia and motor heating High end lead screws and THK linear rails 24v / 48v native power supply to minimise voltage drop and wiring gauge High precision stepper motors Switchable bed voltage to provide quicker warm up and maintain temperatures without cycling 6060 extrusion Little to no bed calibrations required, high repeatability For the stepper motors, I will be using either Sanyo Denki Stepsyn or Vexta 5 phase stepper motors. Currently the Vexta is top of my list, they have a 0.72deg step instead of the usual 1.8deg which drastically reduces cogging vibration and improves accuracy. All motors are made in Japan of course The steppers will be overkill of course but the goal is to be able to do micro stepping while still having torque in reserve. More info on 5 phase advantages: https://www.orientalmotor.com/stepper-motors/technology/2-phase-vs-5-phase-stepper-motors.html The heated bed will go one of two ways, either I will source a silicone bed heater big enough or I will be utilising heating element wires which I have already sourced. These are only rated for 7W @ 24v but I have tested them at up to 50v which achieves a very high power output and tolerant of up to 200c. I would prefer the heater element route as I would like to utilise a thick build platform to provide a large thermal mass to stabilise heating and minimise temperature variance across the bed. Power supply will most likely be a 24/48v Delta 1000W power supply to run everything. This may change if I use a silicone bed heater as they are usually mains powered and will suck up the vast majority of the power. The power supply is medical grade, can run fan less and runs 94% efficiency. But before we can start all this, we need tools to kick this project off. I have just received my beast Bosch Glide mitre saw that will do the bulk of the rough cutting. My old saw just couldn't maintain its accuracy and cost me time. First job is to wire my dedicated vac into the trigger assembly for auto starting of the vac with the saw. After this everything will move over to the mill where the extrusion will be surfaced to eliminate distortion and ensuring everything is squared up. I also have my new oscilloscope and bench power supplies on the way for development.