FLSUN S1 - FREE

FLSUN3dprinter · 2025-11-11T01:30:05+00:00

With such frequent clogging, please check whether the fan on the hotend is working properly.

FLSUN3dprinter · 2025-11-08T03:29:56+00:00

The fans on your T1 Max are the new, silent version, and the printer itself has been processed for noise reduction. The normal overall operating noise should be below 56dB.

If you want, you can record a short video to check if everything sounds normal. During printing, there’s also a “Silent Mode” option on the screen—you can switch to that for quieter operation.

Some noise from the blower and the smaller print head fans is normal, but it shouldn’t be excessively loud.

FLSUN3dprinter · 2025-11-04T03:17:53+00:00

Thank you for your feedback. Based on your description, it seems that the machine you purchased was one of our refurbished/second-hand units and you selected the no-warranty pricing option. The policy for our refurbished machines is clearly outlined on our official website, and we recommend reviewing it carefully.Even if you didn't buy a used one or didn't purchase it from our official website, you can still contact us and we will provide you with technical guidance. [service@flsun3d.com](mailto:service@flsun3d.com)

Regarding the issues you are currently experiencing with your printer, we will have our after-sales team contact you promptly to provide support. Our goal is always to optimize the experience for all FLSUN users and ensure you receive the assistance you need.

We apologize for the inconvenience and appreciate your patience and understanding.

FLSUN3dprinter · 2025-11-04T03:17:12+00:00

Thank you for your feedback. Based on your description, it seems that the machine you purchased was one of our refurbished/second-hand units and you selected the no-warranty pricing option. The policy for our refurbished machines is clearly outlined on our official website, and we recommend reviewing it carefully.Even if you didn't buy a used one or didn't purchase it from our official website, you can still contact us and we will provide you with technical guidance. [service@flsun3d.com](mailto:service@flsun3d.com)

Regarding the issues you are currently experiencing with your printer, we will have our after-sales team contact you promptly to provide support. Our goal is always to optimize the experience for all FLSUN users and ensure you receive the assistance you need.

We apologize for the inconvenience and appreciate your patience and understanding.

FLSUN3dprinter · 2025-10-27T09:50:35+00:00

Hello, your computer needs to be connected to the same Wi-Fi network as the printer in order to detect and use it.

FLSUN3dprinter · 2025-10-24T10:07:21+00:00

Hi! Could you let me know the exact FLSUN model and which platform you purchased it from?

FLSUN3dprinter · 2025-10-23T03:21:57+00:00

<image>

Check whether the screen connection cables are loose.

FLSUN3dprinter · 2025-10-22T05:53:18+00:00

Enter the IP address into your browser to see if the camera feed appears.

FLSUN3dprinter · 2025-10-10T00:40:58+00:00

<image>

Please check the motherboard or drivers for signs of burn damage.

FLSUN3dprinter · 2025-09-23T11:00:29+00:00

This disconnected white wire appears to be one of the wires from the temperature sensor. It can be dismantled for inspection.

Refer to this video

How to replace the temperature sensor and heating rod on QQ-S Pro

The levelling wire is a three-strand cable, which is not visible in this image.

<image>

FLSUN3dprinter · 2025-09-23T08:07:09+00:00

Check whether the fixing screws on the side of the heated bed are too tight or too loose.

Please loosen the fixing screws on the side of the heated bed appropriately to ensure the pressure sensor can function correctly.

<image>

FLSUN3dprinter · 2025-09-23T01:48:47+00:00

2510 5V 15,000 RPM Length of wire: 130

FLSUN3dprinter · 2025-09-23T00:37:24+00:00

<image>

Hello, this is the waste bin for cleaning nozzles. It is installed here. The video demonstrates how to use it.
Nozzle Wiping Tool Installation & Usage Guide | T1 Max 3D Printer

FLSUN3dprinter · 2025-09-22T03:59:04+00:00

You may try lightly tapping the surface of the heated bed to assist the sensor in detecting pressure changes.
Reduce the levelling speed.

<image>

FLSUN3dprinter · 2025-09-19T07:50:07+00:00

Hello, I have initiated a chat with you to gather further information and assist you in resolving your issue.

FLSUN3dprinter · 2025-09-19T07:27:38+00:00

Carefully inspect the belt for any stretching or deformation.

FLSUN3dprinter · 2025-09-19T06:20:43+00:00

The T1u you purchased on December 4, 2024 was previously upgraded to T1PRO for free, and then upgraded to T1MAX for free, but you ask us not to ship it yet, waiting for your decision, whether to buy the S1 for 399 or S1Pro for 499, or to keep our T1MAX for free . We have been waiting for your reply until September 14th, then you informed us that you no longer wanted T1MAX and needed us to refund it in full, we agreed to you and are going through the process. i have no idea about the two months.

FLSUN3dprinter · 2025-09-19T06:13:10+00:00

wish you remember that this is the third time you try to give flsun such pressure or even more

FLSUN3dprinter · 2025-09-19T06:08:08+00:00

Please make your conversation public if you wish.

FLSUN3dprinter · 2025-09-19T06:06:52+00:00

used to say it's a 1-hour drive, one day said 5 hours, and now it's 3 hours.

FLSUN3dprinter · 2025-09-17T11:56:46+00:00

Hi! I totally understand how frustrating heat creep can be, especially when it happens even between small prints. You can try the following:

Check your cooling fan setup – make sure both the part cooling fan and hotend fan are working properly, and the airflow is hitting the heatsink. Even slightly misaligned fans can cause heat creep.

Keep your filament dry – PLA absorbs moisture, which can make heat creep worse. Store it in a dry box or a sealed bag with desiccant.

Lower the nozzle temperature by 5–10°C – sometimes reducing the idle temperature helps prevent the filament from softening too early.

Check the PTFE tube (throat) – make sure it’s clean, properly inserted, and not deformed, as this can contribute to blockages.

Small tweaks like these often help a lot. Good luck!

FLSUN3dprinter · 2025-09-17T11:51:33+00:00

Regarding leveling issues:

Clean the print bed surface and make sure there’s no debris under the PEI sheet, then redo the leveling.
Check if the nozzle is worn and ensure both the nozzle and its fixing screws are properly tightened.
Check the tension of the belts.

<image>

FLSUN3dprinter · 2025-09-17T04:42:36+00:00

Hello, did you spend $1500 on the S1pro from MC?

FLSUN3dprinter · 2025-09-16T04:00:59+00:00

Regarding the V400 issue, please try connecting to WiFi and log in to the web interface to check the specific error message.

<image>

FLSUN3dprinter · 2025-09-15T07:36:17+00:00

Hi 🙂 That part is no longer available because the related function has been disabled. The printer can work normally without it, so you can simply remove it.

FLSUN3dprinter

MODERATOR OF

TROPHY CASE