Using the Taz Printer

Overview

Taz Printer

The Taz printer is modified from stock with a Duet3d control board and a Flexion extruder. This printer is primarily set up for PETG filament. Other filaments may be used but are untested as of this time (Oct-27-2021). For filaments other than PETG it is up to users to determine machine parameters and slicing profiles as required. Your mileage will vary, greatly. PETG Is the preferred filament on this machine because it has proven to provide robust results while working in open air and with larger and thicker parts which require the use of this printer. Precious few parts will be successful using ABS on this machine.

The Duet3d/RepRapFirmware controlled printers are significantly different than our other filament printers. These machines have both a graphical touch screen on the printer and use the Duet Web Control (DWC) as the primary interface. The DWC is web based and works within a browser. The machine's control page is visible by any machine connected to the Tinkermill network using the printer's IP address. Refer to the Duet Web Control manual if you want to learn more about working with the Duet interface.

Slicing

The primary slicer we use is Simplify3D. Any slicer maybe used for preparing jobs but the PETG slicing profile in our local copy of Simplify3D is configured specifically for the Taz and contains the best-tested parameters we have. If you find or know of some good parameters please share! The current go-to slicing profile is PETG_TAZ0.4? This profile is set up for the Taz using PETG with a 0.4mm nozzle and (should) contain the best known general purpose parameters. Jobs are output in text as .gcode files and uploaded to the controller via the web browser interface.

Basic Workflow

Slicing Operations

Work within Simplify3D is carried out the same as with all of our filament printers.

The current go-to slicing profile is PETG_TAZ0.4. This profile is set up for the Taz using PETG with a 0.4mm nozzle and (should) contain the best known general purpose parameters.

Slicing Recommendations

The current Taz configuration with PETG performs relatively poorly in bridging compared to ABS in our other printers. As a result slicing parameters are largely driven by the need for surface quality on top surfaces and in transitions.

• Infill below 15% is not recommended.
• Tighter infill patterns (i.e. rectilinear) and/or solid infill angles which reduce the maximum open span are recommended. Open infill patterns (such as hexagonal) and angles which create larger spans will lead to open or distorted to surfaces.
• 4 Top layers is recommended using the points above. The first three layers will close most gaps and create a decent surface for the 4th layer. 3 Layers may work depending on part geometry or expectations. In my experience 2 Layers will only work in rare circumstances.
• 3 Outer perimeters is recommended to help with closure on sloping or blended surfaces. 2 Layers is the bare minimum for walls with more vertical angles.

You do not need an SD card. After slicing the job save it in a directory.

Printer Operations

[File:Duet Web Interface.PNG]

Check Filament

Upload the job

TODO DWC simulating jobs

TODO Start

The printing will start when the heaters have reached their setpoints.