¶ Overview
¶ Location
The heated bed is located inside the machine chamber, and its cable runs through the right inner panel to connect to the main power supply. To replace it, please remove the right plastic panel first.
¶ Difficulty and Time Estimate
- Difficulty：★★★☆☆ (moderate)
- Estimated Time：20 minutes
¶ Where to Buy
US: https://us.snapmaker.com/products/heated-bed-for-snapmaker-u1
EU: https://eu.snapmaker.com/products/heated-bed-for-snapmaker-u1
Global: https://shop.snapmaker.com/products/heated-bed-for-snapmaker-u1
¶ Tools and Parts Required
- H2.0 hex key
- New U1 heated bed
¶ Part 1. Remove the panels
¶ Step 1. Unload filament from toolheads 3 and 4
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Tap the marked position on the screen
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Tap Unload Mode
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Select toolhead-3、4, tap Unload
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Wait for the printer to complete the filament unloading automatically
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Rotate the spool-3、4 to retract all filament
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Remove the spool-3、4 (including the spool holders)
¶ Step 2. Power off the machine
- Before proceeding, please turn off the machine and unplug the power cable!
¶ Step 3. Remove the filament feeder on right side
- Press the clip at the marked location.
- While pressing the clip, slide the filament feeder in the indicated direction to remove it.
- Next, press point 1 as shown in the image to disconnect the filament feeder cable.
- Complete.
¶ Step 4. Disconnect USB cables
- Use a H2.0 hex key to remove the 8 screws from the 4 USB cables, then unplug the cables.
¶ Step 5. Remove the top cover panel
- Take out the silicone plugs from all four corners of the top cover panel.
- Use a H2.0 hex key to remove the 4 screws beneath the plugs.
¶ Step 6. Remove the right panel
- Slightly shift the top cover panel as shown in the image, then remove the four marked screws.
- Remove screws 5 and 6 located inside the spool holder holes.
- Then remove screws 7 and 8 on the right inner panel.
- Pass the filament feeder cable through position 1 and disconnect the two RFID cables at position 2, then remove the right panel.
¶ Part 2. Replace the heated bed
¶ Step 7. Disconnect the heated bed cables
¶ 7.1 Remove the power supply cover
- Use the H2.0 hex key to remove the screws marked 1 to 4 that secure the power supply cover.
- Carefully take out the power supply cover, then disconnect the fan cable first.
- Remove the power supply cover.
¶ 7.2 Disconnect the heated bed cables
- Identify and disconnect the following cables.
| No. | Cable Description |
|---|---|
| 1 | Heated bed cable – Red |
| 2 | Heated bed cable – Blue |
| 3 | Heated bed cable – Yellow |
| 4 | Heated bed NTC cable |
Press the buckle indicated by the arrow in the picture below, and pull out the cables numbered 1, 2, and 3 outward.
¶ 7.3 Loosen power supply box for cable removal
- Remove screws 1 and 2 from the top of the power supply box.
- Remove screws 3 and 4 from the right side of the power supply box.
- Loosen screw 5 inside the center hole at the bottom of the power supply box (do not fully remove it).
- Pull the heated bed cables out from the back of the power supply box as shown in the image.
¶ Step 8. Remove the old heated bed
- Facing the front panel of the machine, lift the machine slightly. Pull the timing belt to the left to raise the Z-axis, or to the right to lower it. Adjust the heated bed to a suitable position, then remove the waste collector.
- Place the filament spool (or an equivalent support) directly under the heated bed as shown. Press down on the platform so the sheet metal beneath the bed rests firmly against the support. Then, unscrew the four nuts under the sheet metal one by one. While loosening each nut, make sure to press down on the platform directly above it.
- Use the H2.0 hex key to remove the screw at position 1 in the image. Then, loosen the screw at position 2 just enough so the cable clip can move freely. Finally, slide the heated bed cables out of the clip.
- Carefully remove both the print platform and the heated bed.
¶ Step 9. Install the new heated bed
- Thread the new heated bed cables through the metal plate and right inner panel, around the back of the power supply box to the connection area.
- Align the screws in the springs with the four corner holes and place the bed in position.
- Reinstall the print platform.
- Place the spool holder (or an equivalent support) under the heated bed as shown. Press down on the platform so that the sheet metal beneath the bed is firmly in contact with the support. First, loosely fasten the four nuts underneath the sheet metal in sequence, then fully tighten them. While pre-tightening or tightening the nuts, make sure to press down on the platform directly above each nut.
- Remove the spool holder (or equivalent support) from beneath the sheet metal. Route the heated bed cables over the cable clamp, then use the H2.0 hex key to tighten the outer screw of the clamp.
¶ Step 10. Reconnect the heated bed cables
- Reconnect the 4 heated bed cables.
| No. | Cable Description |
|---|---|
| 1 | Heated bed cable – Red |
| 2 | Heated bed cable – Blue |
| 3 | Heated bed cable – Yellow |
| 4 | Heated bed NTC cable |
- Organize the cables as shown in the picture.
¶ Part 3. Reassemble the machine
¶ Step 11. Reinstall the power supply
- Use the H2.0 hex key to tighten all five screws securing the power supply box.
- Connect the power supply cover fan cable, then use the H2.0 hex key to tighten all four screws securing the power supply cover.
¶ Step 12. Reinstall the right panel
- Reconnect the RFID cables at position 1, pass the filament feeder cable through position 2, then install the right panel.
- Use the H2.0 hex key to tighten the 8 screws of the right panel.
¶ Step 13. Reinstall filament feeder and spools
- Reconnect the filament feeder cable and organize it as shown.
- Align the feeder clips with the corresponding positions, then push the feeder into place in the direction shown to complete installment.
- Reinstall the spools and spool holders.
¶ Step 14. Reinstall the top cover panel
- Install the top cover panel, use the H2.0 hex key to tighten the 4 screws, then replace the silicone plugs.
¶ Step 15. Reconnect USB cables
- Reconnect the USB cables, then use the H2.0 hex key to tighten the 8 screws.
¶ Step 16. Install the waste collector
¶ Step 17. Insert filament
- Power on the machine and insert the filaments into the corresponding feeder ports in sequence.
¶ Reach out to Snapmaker Support
After following the troubleshooting steps, if you find it difficult to resolve your issue, kindly submit a support ticket through https://snapmaker.formcrafts.com/u1-troubleshooting-request and share your troubleshooting results with some pictures/videos.
Our dedicated support team will be more than willing to assist you in resolving the issue.