TierTime UP mini 2 Configuration guide

Website: https://www.idig3dprinting.co.uk
email: [email protected]
UP 3D Printer Printing Guide
Up 3D printers are designed to be extremel user friendl but, like all 3D printers the
do require tweaks in our printing process in order to maximise the qualit of our print.
We have put together a small guide to give ou some tips and tricks to maintain the
qualit of our print. It should help ou to improve our print qualit . The guide covers:
1. Model Adhesion
2. Warping
3. Improving the print & trouble shooting
4. La er delamination

Website: https://www.idig3dprinting.co.uk
email: [email protected]
1. Model Adhesion
Probable the most important part of successful 3D printing is the first la er, if our
model doesn't stick ou will get a complete mess, at best model warping. The things to
bear in mind to improve our first la er adhesion are:
•Clean the print bed. Use acetone to clean the print bed of dirt and grease and
tr to avoid getting fingerprints onto the board.
•Don't clean out the perf board holes. The perf board is designed to reduce
warping as the model will stick to the ABS in the holes. It just needs to be
scrapped flat.
•Pre heat the bed for at least 15mins.
•Adjust nozzle height to ~ .2mm. The nozzle heights wants to be approximatel
a 2 x a papers thickness from the bed. For the UP Plus and UP Mini. For the UP
Plus use the auto platform levelling and Nozzle setting routines.
•Ensure the platform is level.
•Use an alternative print surface. Tr different coverings to improve adhesion, for
example: Kapton tape, Glass sheets, Acr lic sheets, Masking tape, PVA, Hairspra
•Use an adjustable “Wind Barrier” (if not fitted). Normall keep the wind
deflector closed (i.e. not blowing over the platform) while printing the first
la ers, then open the deflector to allow wind to cool the model as it is being
printed. To get the latest spare parts, install the latest version of the UP!
Software and ou will find 3D spare part models in this director : C:\Program
Files\UP\Example.
2. Reducing Warping
Warping can be an issue with 3D printing. It is the result of uneven cooling of the plastic.
Essentiall as it cools it shrinks, some parts are shrinking faster than others and this
results in warping. ABS is much more prone to warping than PLA.
•Level the platform. Although there is an auto calibration function ou ma get
better results with manual calibration. This should not need doing ever time ou
print.
•Set nozzle height. Tr touching the nozzle to the highest point on the bed and
then set this as the nozzle height in platform calibration.
•Clean the print bed. This improves first la er adhesion (see section 1 on model
adhesion).
•Use UP ABS or PLA. UP filament is specificall designed to work with UP printers.
Check whether ABS is dull or gloss , gloss is the new ABS . If using new ABS use it

Website: https://www.idig3dprinting.co.uk
email: [email protected]
is best to use v2.13 UP software. If it is old ABS it is better to use v2.11 software.
•Use PLA. PLA is less prone to warping so unless ou need the material properties
of ABS it is a good idea to use PLA.
•Print Fast for large Models. If the part is over 50% of the bed size print it on fast.
It is likel that this will cure an warping problems as most warping is caused b
temperature difference between la ers . Temperature differences between la ers
are reduced if the time between each la er being printed is reduced.
•Increase layer thickness. If part is composed mainl of vertical sides increase
la er thickness.
•Pre-heat the bed to at least 75C before printing. This will mean that the heat
distribution across the bed is even when printing commences. Cold spots increase
the tendenc for warping in those areass.
•Place printer away from draughts in warm environment. Variations in the
temperature during the print process due to drafts effects extrusion consistenc
and can increase warping. Also printing in a warmer room, i.e. not on a factor
floor also helps the printer to maintain the printing bed temperature.
•Print hollow parts. Large solid parts tend to warp, especiall if the part is not of
a uniformed height as thinner areas cool faster than thicker parts.
•Calibrate the printer steps/mm. See section 3 on “improving the print”.
•Direct the air flow from the feeder unit fan. Direct the airflow on to the model,
this will cool at ABS faster.
3. Improving the print and troubleshooting
Here are a few tips to help ou improve print qualit and prevent problems with our
print.
•Use genuine UP filament. Non-UP filament has different properties and usuall
melts or goes soft at a lower temperature. If the filament gets soft around the
extruder gear then it can grind the awa at the material and stop it feeding
through causing holes in our print / under extrusion.
•Ensure Nozzle is not blocked. Either replace regularl with new ones or for ABS
soak in acetone for 24hrs or for both ABS and PLA ou can tr to burn it off
(wearing gloves and safet glasses). Don't use abrasives as this can widen the
nozzles hole.
•Clean the Extruder and feed gear. If our printer is under extruding it ma be
down to problems feeding the filament through to the hotend.
•Make sure the extruder motor fan is working effectively.

Website: https://www.idig3dprinting.co.uk
email: [email protected]
•Calibrate the printer steps (See manual). If the steps/mm are off for the stepper
motors this can result in dimensional inaccuracies. It also means that the
extrusion beads are closer together than the should be so material ma not have
stretched as it should and the interface la er between raft and part ma stick
more than it should. Open the Calibrate96.stl found in C:/program
files/UP/samples, print this on default settings, go to >3D Print>Calibrate on the
UP software toolbar and t pe in the measured dimensions.
•Print Cylinders vertical. For a better, more rounded shape to c linder tr printing
them verticall . If this is not possible tr increasing the angle of support to 45°
and also selecting "Unsolid model" before printing.
•Disconnect the USB cable. Earthing and electrical interference issues at certain
locations (e.g. the PC is connected to a different mains than the printer) have
been known to cause strange behaviour of the printers. Tr disconnecting the USB
cable once it has started printing. The printer stores it's instructions on an
internal SD card so will continue printing when disconnected from the PC
software.
•Check the SD card. Make sure that the SD card is clean and inserted correctl
(this is probabl best left until last if all other checks haven't improved things).
4. Layer delamination
3D printing involves the building objects out of la ers. One issue that can arise is la er
delamination, or gaps between la ers. Delamination can be reduced b following the
same procedure in section 2 on “Warping”. You can tr looking at some of the below
suggestions to reduce this anomol :
•Pre Heat the bed.
•Use the latest software.
•Run the platform calibration routine.
•Increase layer height.
•Reduce the number of perimeters (reduces print time).
•Change quality to “Fast”.