3D printers use digital models to create three-dimensional objects by depositing plastic filament (PLA) one layer at a time in a process called fused deposition modeling. This page shows how to 3D print the file, from start to finish and also notes some pointers for quality prints. Check out our Technology Instruction page for dates and times for trainings and to register for them.
Users may set their own prints on the 3D printers after completing a training and signing the 3D Printers Safety Agreement, but must schedule them ahead of time at groupstudy.charlotte.edu. Any unscheduled prints may be stopped and removed from the printer if someone else has scheduled that time. Users are asked to limit the scheduling of prints to one print per week, with the exception of single prints that will run for a longer period. If the user does not check in within 15 minutes of the scheduled start time, the scheduled job will be automatically removed from the calendar. Check our 3D Printing Policy for more information.
LulzBot TAZ Pro Dual Extruder: TAZ Pro Pro Dual | 0.50mm| Hardest SST
|Needs Supports||No supports|
Set the printer to the Dual Extruder Printer listed above. Click open file, select the 2 files you wish to print at the same time.
Once the models have both loaded in, set the nozzle for each.
Right click on the model and selecting either Hot end 1 or Hot end 2 checkbox. They must be on different hot ends to print dual extrusion style.
After you have set the hot ends, select all models (do this by either right clicking and selecting the option in the mouse menu or by using the hot key ctrl+a) right click on the models, and select Merge Models.
This will combine the models so they will print together.
Set Custom settings.
Under Custom>Travel-Combing Mode Within Infill
Check yes to enable Avoid Printed Parts When Traveling
Under Custom>Travel-check yes to enable Z Hop When Retracted
Under Custom>Dual Extrusion - check yes to Enable Prime Tower
On touchscreen select Menu> Move Axis > All (to the right of X,Y,Z). This will automatically shift to the home position.
Your print will be paused by the Makerspace Monitor overnight. Currently, the extruder will lift automatically, but if it does not, keep these things in mind:
X axis: left to right
Y axis: front to back
Z axis: up and down
If you are experiencing oddities in your print, head over to Simplify3D's Print Quality Troubleshooting Guide or seek assistance from the Makerspace Monitor.
Lay the model on the flattest side to reduce the support filament used and the print time. Overhangs over 45 degrees will require supports. Check the slicer program, also. Areas beneath the overhang will be red if supports are needed.
Fig. 1. Lattice Support Patterns. Retrieved from Ultimaker
Fig. 2. Tree Supports. Retrieved from Flashforge.com
Use tree supports for dynamic shapes. They are much easier to remove from smaller areas without breaking the print. (All3DP.com)
Distance between support structure lines
You can pick where Cura will generate supports:
The gap between the top and bottom of the supports and the model.
Creates a layer between the support and the model. This leaves a smooth looking finish on the model. Always reduce it to at least .75mm and increase the Z distance in order to remove it easily.
Use glue, not rafts, if you notice the brim and model are rising to decrease the amount of filament wasted. When using glue, always clean the bed when you are finished.
Don't reprint a failed print using the same settings as before.
Always use a brim for small models or when you notice the bottom rising. Without a brim, prints can easily move out of place especially they are tall. If the bottom rises, stop it immediately and add a brim or raft. The print has already failed.
Before saving your print to a flash drive always see it in Layer View to see exactly how the build plate adhesion and support will look. View drop-down menu > choose Layer View > wait for it to render.