Follow

Failed Filament Detection

Before proceeding, please collect and record the following data: 

  • Has filament detection worked before for you?
  • What version of firmware are you running? Verify the version on your Gigabot's Viki controller (About Printer > Printer Info)
  • Have you recently updated your firmware? 

If the filament detection issues are intermittent, the limit switch may need adjusting. Follow the steps outlined in the instructions and video below.

Tools Needed:

  • 1.5mm Allen key

Instructions:

  1. Remove the filament detection cover by pushing in the two end tabs on the top and bottom.
  2. Using a 1.5 mm Allen key, loosen (do not fully remove) the two screws holding the limit switch in place.
  3. Push the limit switch all the way over toward the bearing. Maintaining pressure, re-tighten the two screws holding the limit switch in place.
  4. Re-install the filament detection cover.

Proceed through the following steps if you are still experiencing filament detection issues: 

1. Start a print and trigger filament detection by removing one of the wires on the limit switch. It will take about 20 moves of the printer before the filament detection triggers, so please be patient. 

2. Heat up one of the hot ends. In the Viki, go to "Prepare > “Change filament” routine. Complete that process, then try a print and trigger filament detection by removing one of the wires on the limit switch. It will take about 20 moves of the printer before the filament detection triggers.

3. Verify the limit switch is fully triggered when the filament is inserted. Sometimes the switch is not close enough to the filament channel, so the bearing does not trigger the limit switch as shown below. (Your limit switch should look like the "closed" photo.) 

switch_open.jpg

switch_closed.jpg

Verify no debris is impeding the path of the lever and preventing the triggering of the switch. You may need to loosen the screws on the limit switch and move it closer to the filament to make sure the switch gets fully depressed.

4. Connect the Gigabot to a computer and open Simplify3D.

  • Start a print, then enter "M600" into the command line to trigger filament detection.
  • In the "Communication" tab of the "Machine Control Panel", enter "M119" to check the status of the switches as shown below:

switch_status.png

  • While depressing the filament detection limit switches, enter "M119" again and see if the filament detection switches are triggered. If they don't work, then either the limit switch or the limit switch wire is not working.
    1. To test if the limit switch is working, use a multimeter to test continuity when the limit switch is closed. If it is not continuous, then the limit switch is broken.
    2. To test if the wire is not working, use a multimeter to verify both the red wire and the black wire are continuous. Next, verify the red and black wires on each end of the wire are not continuous. If either of those tests fails, there is a break in the wire and it will need to be replaced.
    3. To test if the pins on the Azteeg are not working (see photos below), use a jumper wire (or just something metal) to connect the red and black pins. Then test filament detection by entering "M119" into the command line or by starting a print.

For an Azteeg X3 Pro:​ (NOTE: The black wires share a pin)switch_wires_azteeg.jpg

 

Wiring Diagram: The components and pins specified are indicated by the pink boxswitch_wiring_diagram.png

 

Questions or concerns? Reach out to our support team at support@re:3D.org or open a support ticket

Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request

0 Comments

Please sign in to leave a comment.