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Below are some helpful files and videos for the Tina2 PLUS 3D printer. For the Tina2S (Non-PLUS version), please visit this page instead.

For e-mail technical support, please contact us at Amazon@mlcdistribution.com

Documentation
Setup Videos
Other Helpful Links
PoloPrint Cloud App
Control the 3D Printer through the WiFi network using your mobile device
FAQ & TROUBLESHOOTING
Common questions, problems, & solutions

What filament does this printer use? Where can i buy more?

This printer uses standard-sized 1.75mm PLA, PLA+, PLA pro, & TPU filament. The integrated spool holder can hold spool sizes up to 250grams. If using larger spools (such as 1kg), you will need to use an external spool holder (not included). PLA filament spools are readily available on Amazon and in any store that sells 3D printers. Doing a search on Amazon for "250g PLA filament" will yield many results that will fit this printer.

My project is stuck on the plate and I cant remove it.

If your project has finished printing and you are having a hard time removing it, detach the magnetic bed plate from the printer and bend the bed plate back and forth until your print releases. Manually heating up the plate first will also make it easier to release and peel off. To heat up the plate, go to: Menu > Control > Temperature > Bed and then set the highest temperature available.

Why is the printer creating a spaghetti-like mess at the BEGINNING of the print?

Spaghetti incidents are usually caused by one of these two issues:

  1. If it happens near the beginning of the print, then the likely cause is incorrect Z-offset (the starting distance between the nozzle tip and the print bed)
  2. If it happens in the middle of the print, then the likely cause is bed adhesion (the ability of the print to remain stuck to the bed during printing)

Z-Offset Adjustment

If the issue happens at the beginning of the print, then it is likely that z-offset setting needs to be calibrated so that the gap between the nozzle and print bed is at the optimal distance for layer adhesion. Although this is adjusted at the factory, this setting may need to be adjusted occasionally due to shipping forces or temperature changes that causes parts to expand/contract. Here's how:

  1. Go to > Menu > Control > Probe Z Offset and wait for the short bed-leveling calibration procedure to finish and for the nozzle to come down right above the bed.
  2. Use a piece of printing paper and put in between the nozzle and bed to gauge the gap (~0.1-0.2mm is the optimal gap).
  3. Use the control knob to adjust the gap until the paper has some resistance but you can still easily slide the paper around.
  4. Press the control knob to set the Z-offset. Now you're ready to print

Bed adhesion

If the issue happens in the middle of the print, then the print may be slipping/shifting on the plate due to bed adhesion issues. This causes the print to go out of alignment and often results in the nozzle printing in the air which creates a spaghetti-like mess. Here are some tips to improve bed adhesion on your print to avoid this:
  • Ensure that the bed plate is completely clean. Use a solution of Isopropyl alcohol to wipe down the plate eliminate dirt and oils. Avoid touching the bed plate with your bare hands and avoid using any cleaners that leave any residue behind.
  • Apply a thin layer of glue on the bed using the included glue pen to increase the print adhesion. This is a trick that may hobbyists use.
  • Avoid putting the printer on surfaces that introduces strong vibrations and avoid bumping into printer during printing. This could potentially misalign the nozzle position or knock the print loose.
  • Ensure the nozzle temperature is over 200 degrees when it starts printing and that the bed is warmed up at least 30 degrees. These 2 values are shown on the printers display screen when printing.
Other less common causes of spaghetti-like messes include the following:
  • Poor supports / lack of support. This is print-dependent.
  • A partially clogged nozzle which causes uneven extrusion
  • A damaged or heavily worn filament tube (aka. Bowden tube) which can cause friction that will affect the feeding of filament.
  • Overtightening of the outer hex screw for the spring-loaded filament feeding lever. This leads to uneven extrusion.
For more details about this specific issue, we recommend reading this page Avoiding Spaghetti in 3D Printing: A Step-by-Step Guide.

Why is my printer printing squiggly lines instead of printing straight?

If your printer starts my squiggly (non-straight) lines when it starts printing, then this is likely due to an incorrect Z-offset setting which creates too big of a gap between the nozzle and the bed. Follow the instructions in this section to properly configure the Z-offset.

I'm getting a download error when printing from the app.

Check that the MicroSD card is fully inserted into the printer. In most cases, the card is already installed in the printer slot. If you don't see it preinstalled, check for it in the accessories bag. This card is required even when printing through the app because it the app uploads the print file to the card before printing.

Filament is not coming out of the nozzle / how do I unclog my printer?

If you find that filament has stopped coming out of the nozzle, then you may be experiencing a clog. Watch the following videos on steps on how to unclog the machine:


The flow of filament coming out of the nozzle is very inconsistent, how do i fix this?

A successful print depends on a consistent print lines that is a consistent thickness without varying between thin and thick. This can be easily observed during the first layer of printing but is best observed during the purging process that takes place during the "Load Filament" process. Follow these steps to best observe the flow of filament coming out of the nozzle:

  1. Access the menu and go to Prepare > Change Filament > Load Filament > Preheat PLA
  2. Follow instructions to feed the filament. If the filament is already installed, then skip ahead to the purging step.
  3. Let the filament purge through the nozzle and observe how smoothly and consistently it comes out. If its not completely smooth, allow it to run for a minute or two to see if it smoothens out. This purging process can sometimes clear minor clogs from the new filament flowing through it.

If the flow is not smooth and does not smooth out during this process, then this inconsistency may be caused by one of these problems:

Cause #1: Partial clog of the nozzle or hotend

In the case of clogs and partial clogs, please refer to this section on how to clear it up.

Cause #2: Feeding issues stemming from the extruder mechanism

The extruder mechanism is the device that sits on the left side of the printer which is responsible for pushing the filament through towards the hotend and nozzle. This mechanism is primarily made up of the extruder gear and the spring-tensioned thumb lever. There are 2 areas in this mechanism that requires attention:

  1. The spring-tensioned thumb lever has an orange spring with a thumb screw securing it. Please ensure that this screw is fully tightened by hand so that the spring tension applies enough pressure so that the extruder gear can grip on and feed the filament.
  2. There is an allen/hex screw that acts as a hinge for this lever. Please DO NOT tighten this screw since it will affect the thumb lever tension. It should be only tight enough to secure the lever in place but it should not be tightened enough to apply any friction to the pivot point of the lever.

Cause #3: A heavily worn or damaged filament tube or tube connector.

A worn or damaged filament tube (also known as a bowden tube). causes extra friction for the filament going through it. Inspect the tube carefully to see if there are any tight bends or pinches that could be affecting the filament movement.

The tube connector (also known as a pneumatic connector) is a locking device that secures each end of the tube. When printing or feeding filament, please observe that both ends of the tube remains locked into the connector at all times. If either ends of the tube becomes loose, then there will be a feeding problem.

If you need help with any issues, please do not hesitate to contact us at Amazon@mlcdistribution.com for extra assistance.