Difficulty
Moderate
Steps
19
Time Required
45 minutes
Sections
1
- Heating Element and Temperature Sensor
- 19 steps
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Introduction
That is the purpose of this guide: to help to replace both the heating element and the temperature sensor. Additionally, if only one of the two components need replacement, the parts of each step involving the other element can be ignored.
What you need
Step 1
Heating Element and Temperature Sensor
- Use needle nose pliers to remove the two spring clips on either side of the shroud covering the hotend.
- Remove the fan with your hand.
Use needle nose pliers to remove the two spring clips on either side of the shroud covering the hotend.
Remove the fan with your hand.
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Step 2
- Remove the two 18 mm Phillips head screws that secure the shroud.
- Remove the hot end from the shroud.
Remove the two 18 mm Phillips head screws that secure the shroud.
Remove the hot end from the shroud.
Step 3
- Use a small utility knife to cut the insulation covering the heater block.
- The intent is to access what is under the insulation, not to fully remove it. Fully removing the insulation will likely damage it.
Use a small utility knife to cut the insulation covering the heater block.
The intent is to access what is under the insulation, not to fully remove it. Fully removing the insulation will likely damage it.
Step 4
- Pull back the insulation until you have access to the grub screw at the bottom of the heater block.
- Use the hex driver to loosen the grub screw.
- Remove the heating element from the heater block.
Pull back the insulation until you have access to the grub screw at the bottom of the heater block.
Use the hex driver to loosen the grub screw.
Remove the heating element from the heater block.
Step 5
- Use the dull side of a utility blade to scrape away excess thermal compound holding the temperature sensor in place.
- Remove the temperature sensor.
- The thermal compound is simply the dried paste surrounding the hole where the temperature sensor is located.
Use the dull side of a utility blade to scrape away excess thermal compound holding the temperature sensor in place.
Remove the temperature sensor.
The thermal compound is simply the dried paste surrounding the hole where the temperature sensor is located.
Step 6
- Unwind the spiral wrap from the wires leading from the hotend to the printer body.
Unwind the spiral wrap from the wires leading from the hotend to the printer body.
Step 7
- Lay the printer in its back to access the bottom panel.
- Remove the six 8 mm Phillips head screws, and carefully remove the bottom panel.
- Do not disconnect any wires in this step.
Lay the printer in its back to access the bottom panel.
Remove the six 8 mm Phillips head screws, and carefully remove the bottom panel.
Do not disconnect any wires in this step.
Step 8
- Clip the zip ties holding the wire bundle together.
Clip the zip ties holding the wire bundle together.
Step 9
- Locate the pair of thick red wires for the heating element and the pair of thin white wires for the temperature sensor.
- Find where each pair of wires connects to the main board and disconnect them with a pair of needle nose pliers.
- The large connector for the heating element has a clip that will need to be depressed to disconnect the wires.
Locate the pair of thick red wires for the heating element and the pair of thin white wires for the temperature sensor.
Find where each pair of wires connects to the main board and disconnect them with a pair of needle nose pliers.
The large connector for the heating element has a clip that will need to be depressed to disconnect the wires.
Step 10
- Remove the four Phillips head screws holding the vertical section of the printer to the base.
- These screws are screwed in tightly, be careful not to strip them while removing them.
- These screws, though also 8 mm, have a slightly smaller diameter than the ones holding on the bottom panel. Keep them separate to avoid mixing them up.
Remove the four Phillips head screws holding the vertical section of the printer to the base.
These screws are screwed in tightly, be careful not to strip them while removing them.
These screws, though also 8 mm, have a slightly smaller diameter than the ones holding on the bottom panel. Keep them separate to avoid mixing them up.
Step 11
- Remove the vertical portion of the printer from the base.
- Feed the wires for the heating element and the temperature sensor through the hole in the base.
Remove the vertical portion of the printer from the base.
Feed the wires for the heating element and the temperature sensor through the hole in the base.
Step 12
- Remove the three Phillips head screws from the bottom of the vertical assembly that hold the front panel in place.
- Remove the three Phillips head screws from the top of the vertical assembly that hold the front panel.
- Remove the front panel from the vertical assembly.
Remove the three Phillips head screws from the bottom of the vertical assembly that hold the front panel in place.
Remove the three Phillips head screws from the top of the vertical assembly that hold the front panel.
Remove the front panel from the vertical assembly.
Step 13
- Push the wires for the heating element and the temperature sensor through the hole in the top of the vertical assembly.
Push the wires for the heating element and the temperature sensor through the hole in the top of the vertical assembly.
Step 14
- Cut the remaining zip ties holding the wires together.
Cut the remaining zip ties holding the wires together.
Step 15
- Unwind the remaining wire wrap from the bundle of wires.
- Remove the old heating element and temperature sensor.
Unwind the remaining wire wrap from the bundle of wires.
Remove the old heating element and temperature sensor.
Step 16
- Insert the new heating element into the heater block.
- Tighten the grub screw to secure the heating element.
Insert the new heating element into the heater block.
Tighten the grub screw to secure the heating element.
Step 17
- Insert the new temperature sensor into the heater block.
- If the sensor doesn’t stay in place, it may be necessary to apply a small amount of thermal cement to secure it.
Insert the new temperature sensor into the heater block.
If the sensor doesn’t stay in place, it may be necessary to apply a small amount of thermal cement to secure it.
Step 18
- Use kapton tape to secure the insulation around the heater block.
Use kapton tape to secure the insulation around the heater block.
Step 19
- Feed the wires from the new components through the hole at the top of the vertical assembly.
- From this point, use steps 15-1 as a guide to reassemble the device, ignoring steps 4 and 5.
- Remember to replace the zip ties for wire managment.
- the 4 screws that held the vertical assembly on the base are different than the other screws that held panels on. Tighten them well.
Feed the wires from the new components through the hole at the top of the vertical assembly.
From this point, use steps 15-1 as a guide to reassemble the device, ignoring steps 4 and 5.
Remember to replace the zip ties for wire managment.
the 4 screws that held the vertical assembly on the base are different than the other screws that held panels on. Tighten them well.
To reassemble your device, follow these instructions in reverse order.
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Author
with 2 other contributors
Noah Wargo
Member since: 06/08/2022
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1 Guide authored
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Team
University of Memphis, Team 1-1, Lane Summer 2022
Member of University of Memphis, Team 1-1, Lane Summer 2022
UM-LANE-SU22S1G1
2 Members
1 Guide authored
