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Loading and Changing Gigabot X Material

Loading Printing Material

To load printing material in the GBX:

First, Check that all parts of the feeding system (hopper, feed tube, and feed throat) are connected. If not, connect them as described below

  1. Connecting the Feed Tube to the Hopper
    1. Summary: Connecting the feed tube to the hopper is done by screwing the tube into the hopper and securing it in with the black threaded collar with the flange.
    2. First, screw the threaded collar onto the tube such that 2 inches of tube is extending out the side of the collar with the flange on it.
    3. Next, screw the feed tube into the threads in the base of the hopper.
    4. Lastly, tighten the threaded collar up against the base of the the hopper to secure it.
  2. Connecting the Feed Tube to the Feed Throat
    1. Summary: Connecting the feed tube to the feed throat is done with two black threaded collars at the end of the tube.
    2. The top collar should be screwed onto the tube so that 1.5 inches of tube is sticking out.
    3. The feed tube should then be inserted into the bottom collar that is set in the feed throat
    4. Screw the bottom collar onto the tube so that the tube fully seats into the feed throat.
    5. Screw the top collar down so that it tightens against the lower collar as shown below:
      • Screen_Shot_2020-06-19_at_2.27.24_PM.png
  3. Connecting the Feed Tube to the Feed Throat
    1. Use a ladder to unscrew the top lid of the hopper and remove it.
    2. Pour the printing material into the hopper.
    3. Screw the hopper lid back on.

 

Changing Printing Material

If you have a feed throat that is rev7 or earlier:

  1. Place a container below the extruder to catch any stray material. Lower the bed if necessary.
  2. Insert the stopper into the side of the feed throat to cut off the flow of material into the extruder.
  3. With a 3mm allen wrench, unscrew the 4 screws securing the feed throat to the extruder block. The feed tube, with the feed throat at the end, should now swing free of the extruder.
  4. Direct the opening of the feed throat to a container. Remove the stopper in the feed throat and allow any material in the hose and hopper to flow out and into the container.
  5. Once all the material has fallen out of the feed system, use a 3mm allen wrench to reattach the feed attachment to the extruder block with its 4 screws.
  6. Load new printing material into the hopper.
  7. Slide out the stopper in the feed throat to allow the flow of material into the extruder block.
  8. To purge the previous material out of the extrusion screw, heat the extruders to printing temperatures. Compare the printing temperatures of the old and new materials and choose the higher temperatures.
  9. Extrude until the extruded stream transitions to the new material.

 

If you have a feed throat that is rev8 or later:

  • Place a container beneath the feed throat.
  • Remove the feed throat stopper by sliding it out of the feed throat. Material in the hopper and feed tube should flow out through the opening and fall into your container.
  • Once all the material has flowed out through the feed system, slide the feed throat stopper back into place in the feed throat.
  • Load new printing material into the hopper.
  • To purge the previous material out of the extrusion screw, heat the extruders to printing temperatures. Compare the printing temperatures of the old and new materials and choose the higher temperatures.
  • Extrude until the extruded stream transitions to the new material.
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