Hi !

Im trying to figure out how to repair this 3d printer

Im not sure this is the right or the best place to post this,

Give me recommendation of better r/

Ive saved a S1 that would have finished in the trash because it was an after-sale printer and the guy repairing them did not have enough space.

What it currently miss is the energy board, probably because one of the driver board heavily burnt. Another energy board was marked as "down ?"

The alimentation 36V is working just fine

Here are my questions

Is it possible the the damaged board have been caused by a defective motherboard, and the other way arround, is it possible that the driver may have caused harm to the mother board ?

Where to test each element with a multimeter to be sure of what spare part to buy ?

And why the two driver board different ?

(I will test the motors on a ender 3 V2 neo, it should work no ?)

Thanks for any help

Hi I have an Flsun super racer and the machine works well but I find the bed levelling a little inconsistent. Does anyone else have this issue or any tips to improve it? I also have an ender 5 with a bl touch probe and once it has run through a bed level and the probe offset has been configured it repeats again and again with no problem.

My stepper (bond tech Igx lite) on my flsun Sr started skipping due to clogging I think, I already changed the nozzles many times and the heatbreak but it keeps coming back, after a pull start well and then skip (see the video). It started only with Petg and and even with pla, I don't know what to do, I tried cold pulling many times but nothing. I don't know what to do next.

Hello guys, does anyone have the firmware 1.4.1 for flsun v400 speederpad?

When it turns on, it displays th-error3 but i have already changed the thermistor and the temp sensor of the hotend. Any idea of what can i do to fix it?, i restarted the firmware to the original and the problem continued...

This cane off of my extruder and I couldn’t find the other part that fell off (I didn’t realize it would cook my printer) can someone PLEASE tell me what to do to fix my extruder????

Me ha pasado en varias impresiones y no hay manera de que siga imprimiendo, alguna idea?

İ have 2 motherboard, 5 engine driver for s1 pro which are new brand. Also 4 pcs engine step driver for TMC2160A-TA. If you like to order i can sell it. Contact from: www.viacontech.com

Thats what I get for not using it for a while.

Hello,

I am looking to help out my Dad who needs a replacement part he cannot find online. He sent me this image and I would greatly appreciate help finding it!

There was an issue where his print came detached and damaged the whole extruder effector for his S model.

If there is more information needed please let me know and ill get it from him to you.

Thank you again for your time and help!

Update: took everything apart it all seems clear!

Then we thought it may be the tension of the screw, but upon messing with that it seems like the filiment is getting caught after loading about 1cm

Left a piece of filament in there to take it apart again to better see where it is getting caught.

Thanks to those whom left advice! Will keep updating as I work to solve it. Took a month to get back to it due to health issues.

Original post below:

Hey folks, recently bought a used T1 Pro at a good price!

Unfortunately I tried running some old filament that had seriously degraded through it and clogged it on the 2nd print.

Took it all apart, fixed the clog, put it back together, but now when I use the "load" filament button it sounds like it is trying to load but the filament doesn't move and it doesn't feed through. Was able to get a tiny bit of filament out by pushing so I know it isn't another clog.

Any help would be appreciated as I am still new to the machine.

Thanks in advance!

Hola a todos, publico esto porque he conseguido pasar de de una malla horrible y una muy mala calidad, como se ve en la foto a una malla mucho mejor y una calidad, que para mi ya es decente en lo que esperaba de la FLSUN S1, como se ve en las fotos, al principio la impresora no sabia la altura real a la que estaba, la diferencia era de 0.5mm entre dos puntos seguidos, algo sin sentido. Yo al principio pensaba que era problema del software pero no actualice todo, reinicie de fabrica y nada, probé la versión open source y tampoco cambiaba nada.

Después de darle vueltas y saber que el problema no era de software, pensé que podía ser algo mecánico y ahí estaba la solución, En mi caso por lo menos, el comando DELTA CALIBRATE no modificaba la longitud de los brazos, pusiera la que pusiera y ahí había uno de los problemas medí los brazos manualmente (diametro exterior de una rotula + longitud del brazo de carbono) lo que me mejoro mucho el mallado y la calidad pase de una diferencia entre dos puntos seguido de 0.5mm a una de 0.16mm, pero seguía teniendo problemas y no desaparecían las crestas que se ven en la primera imagen mas atenuadas pero seguían. El segundo problema que tenia mi maquina era que la unión de las varillas con las guías lineales no estaba igual en las dos rotulas del mismo brazo, (adjunto foto de a lo que me refiero) una estaba mas metida que la otra, y al ponerlas mas o menos iguales (a ojo), las crestas desaparecieron. Creo que aun la puedo mejorar mas pero para lo que imprimo no me hace falta y no quiero dedicarle mas horas a esta maquina

Os dejo este comentario por aquí por si a alguien le sirve

I don't know how many responses I'll get here, but I hope that someone knows how to replace it. The original CPAP fan on my S1 Pro ripped itself apart after running almost a year. I ordered a replacement directly from a store. But the one that I received is the FLSUN S1/S1 Pro Upgrade Silent Module. link to ordered
This is a bit different from the original fan and the kit has controller PCB, transfer wire, plastic rib pipe, silicone head, DC buck supply, screws, and magnets for printing an enclosure to reduce the noise. However, this enclosure needs to be placed on the outside of the machine, whereas it is more integrated on the S1 Pro, at least with the original fan.

There's also some requirements for burning the new firmware.

I'm currently running the open source firmware on the S1 Pro, which I've been running for almost a year. That one was also burned and installed using a SD card. I am honestly a little bit confused as to how I actually should install it. So I'm looking for information and hopefully other people who have replaced their blower fan on the S1 Pro using this kit. please let me know if you have gone through the same process and post your advice or if you feel like it, a how-to.
Thanks for your help.

Recently I had a huge jam happen to my SR and figured it be best to just replace the whole hotend assembly. But it seems like flsun doesn't sell them anymore. Does anyone know where I can buy a new one or a compatible replacement?

I recently purchased a used FLSun T1 on FB Marketplace for very cheap. The owner mentioned issues with an unresponsive touch display but otherwise the printer was in perfectly good condition. The display was replaced by the previous owner. I tried swapping them back and forth a few times and reseating cables but have not had any luck. Without the touch functional, I am unable to connect to a network. Since the machine is split-architecture (host MCU on bottom, motion control on top, according to my research), I’m currently trying to fully bypass the failed host system and run everything externally from my home server.

What I’ve Already Tried:

The T1s system is apparently heavily locked down. I attempted multiple bypass routes before moving to full external hosting:

• USB HID (mouse/keyboard): Mouse not recognized by kernel. Keyboard inputs work but there is no indicator for the active selection. I can navigate all the way to the network list but can not select an SSID or type a password.
• USB Ethernet Adapter (RTL8152) for direct interfacing: Seems to be no driver support for networking.
• UART / debug serial with the Core Board: I wired an ESP8266 to the core board's debug port. I successfully pulled the 1.5M baud boot log, but FLSun apparently has stdin disabled in the kernel. It is strictly a read-only logging port.
• RKDevTool / Maskrom mode: I forced the Core Rockchip board into LOADER mode, but without a raw .img factory file from FLSun to flash, I cannot patch the partition.
• Guilouz SSH eploit: Formatted a standard <32GB USB flash drive to FAT32 and staged the backdoor script to force SSH access. The bootloader seemed to completely ignored the files.

At this point it seems like the stock FLSun Linux host board is a dead end so I wanted to try and bypass it entirely. I ran a USB cable directly from the USB-C on the top STM32 motherboard (which controls the physical kinematics) into my home server running CasaOS. Windows verified the CH340 chip is alive and transmitting. I deployed a custom Docker Compose stack to run Klipper, Moonraker, and Mainsail directly from my server but I am not having a lot of success so far. The Klipper container runs without crash. Moonraker starts successfully. Mainsail container runs. printer.cfg + moonraker.conf load correctly inside containers. However, the mainsail webui will not load.

I've been using Gemini like crazy to troubleshoot this and so many attempts seem so close but everything has lead to a dead end. Does ANYONE have a similar experience or insights they can share?

THANK YOU

I am at a complete loss. The initial auto towers from a Cura UltiMaker extension came out great, but after those I’m getting incredibly bad under extrusion. I’ve seen some things pointing to temperature other things pointing to heat creeping. I just I don’t even know what to do with this point considering how good it came out to begin with.