# I broke my thermistor **URL:** \ **Category:** Sovol Zero\ **Created:** [May 8, 2025, 9:36am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785 "2025-05-08T09:36:00Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![noswall](https://avatars.discourse-cdn.com/v4/letter/n/e9c0ed/32.png) [@noswall](https://forum.sovol3d.com/u/noswall)\ **Post date:** [May 8, 2025, 9:36am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/1 "2025-05-08T09:36:00Z")
One of the thermistor cables broke while I was sliding the silicone sock back on (so delicate!). I can’t order a replacement from the Sovol shop in the EU. Surely it’s just a standard part that I can source locally? ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [May 8, 2025, 12:41pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/2 "2025-05-08T12:41:17Z")
Contact Sovol & see if they will send you a replacement: [info@sovol3d.com](mailto:info@sovol3d.com) or > **[Sovol Zero Extruder Replacement Kit](https://www.sovol3d.com/products/sovol-zero-extruder-replacement-kit)** > > Upgrade and maintain your Sovol Zero with this complete extruder replacement kit. Includes a ceramic heater, silicone sleeve, Clip & thermistor, and more for consistent high-quality printing. ---
**Author:** ![meteoros](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/meteoros/32/2868_2.png) [@meteoros](https://forum.sovol3d.com/u/meteoros)\ **Post date:** [May 8, 2025, 2:34pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/3 "2025-05-08T14:34:07Z")
That happened to me , and i bought a Micro swiss flowtech hotend… ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [May 8, 2025, 2:43pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/4 "2025-05-08T14:43:05Z")
They don’t make a hotend for the Zero, only the SV08. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 8, 2025, 4:19pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/5 "2025-05-08T16:19:45Z")
The Zero thermistor is specified in printer.cfg as follows: ```auto [adc_temperature my_thermistor_e] temperature1:25 resistance1:1268.60 temperature2:180 resistance2:1920.98 temperature3:300 resistance3:2398.52 ``` The resistance values are obviously calculated. Measuring resistance to 6 significant digits is a NON TRIVIAL task. ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/b/b8ecafa783980edb55a0aaf5715f6fec080ce859.png) It seems to be a PT1000 I don’t find a RTD that will fit at Amazon or AliExpress. BUT if Sovol can’t get you one in a reasonable time frame get a thermistor for a Bambu X1 ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/9/92d935beb1caddfd6eb20caecc451872ece37306.png) And edit the [extruder] section of printer config from ```auto `heater_pin: extruder_mcu:PB7 sensor_type: my_thermistor_e pullup_resistor: 11500` ``` to ```auto heater_pin: extruder_mcu:PB7 #sensor_type: my_thermistor_e #Sovol RTD1000b sensor_type: Generic 3950 #Bambu X1 substitute pullup_resistor: 11500 ``` The pullup is not optimal but it should work until the RTD becomes available. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 8, 2025, 6:38pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/6 "2025-05-08T18:38:35Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/0/04ee3c0a6be5856aa5230aef9ec13bfffa13e806.jpeg) > **[PT1000 Thermistor for CHCB-OT Hotend](https://www.trianglelab.net/products/pt1000-thermistor-for-chcb-ot-hotend?VariantsId=11615)** > > Trianglelab PT1000 high temperature printing thermistor for CHCB-OT hotend compatible Creality K1 K1 Max CR-M4 3D printer No dimensions on the sensor end but the pictures show it is MUCH smaller than the connector. ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [May 8, 2025, 6:48pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/7 "2025-05-08T18:48:12Z")
All that work to save $1.32 and it still might not fit. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 8, 2025, 7:20pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/8 "2025-05-08T19:20:45Z")
It’s not about $ it’s about lead time. OP indicated Sovol parts are currently UNAVALIBLE. So you might be willing to wait 6 weeks to forever, others might not Side note I’m waiting for Sovol to ship a cable ordered on 20 April that they assured me was in the US warehouse. ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [May 8, 2025, 8:38pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/9 "2025-05-08T20:38:12Z")
I know…I guess my sarcasm didn’t come through. 😁 ---
**Author:** ![Liberty4Ever](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/liberty4ever/32/3265_2.png) [@Liberty4Ever](https://forum.sovol3d.com/u/Liberty4Ever)\ **Post date:** [May 10, 2025, 2:58am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/10 "2025-05-10T02:58:04Z")
I hope Microswiss makes a FlowTech hot end for the Zero. I’m not interested in a performance upgrade. The Zero hot end is already very high performance at 50 mm^3/s. I want a Microswiss hot end for compatibility with my FlowTech nozzles. On the plus side, at least Sovol made the Zero hot end so there is no need to remove and reinstall the heater and thermistor, as is required on the SV08. I just ordered the Microswiss CM2 MK8 nozzle with a hardened M2 steel tip so I can see if it’s truly compatible with the Zero. Sometimes a nozzle is MK8 compatible in theory but not in practice, with a slightly different length, or threads that are just a little too short or too long. I needed a clog free 0.6 mm nozzle for PETG-CF and other abrasives and the Microswiss nozzle with the steel tip should work better than the Sovol supplied 0.4 mm all steel nozzle that will have much lower thermal conductivity. ---
**Author:** ![noswall](https://avatars.discourse-cdn.com/v4/letter/n/e9c0ed/32.png) [@noswall](https://forum.sovol3d.com/u/noswall)\ **Post date:** [May 10, 2025, 10:44am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/11 "2025-05-10T10:44:35Z")
I’m half tempted to make the Microswiss hotend work, but it’s about 10mm shorter than the Zero’s stock hotend and I don’t know if the Z leadscrews and linear rails have an extra 10mm of travel in them. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 10, 2025, 7:29pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/12 "2025-05-10T19:29:16Z")
No extra travel needed if you lower the MS heatsink. ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/e/e46802496c817888d7022ba9a1648dee85d7f04b.jpeg) 3 issues: Heater wire length Zero expects a PT1000 not the 10K thermistor clearance for the lowered fan not tested Attached file has NO added clearance for holes! [MS on Zero v1.step](https://forum.sovol3d.com/uploads/short-url/Sy0m4MLF1L4QIaTQnHlMRURlMM.step) (95.0 KB) ---
**Author:** ![Lion](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/lion/32/5586_2.png) [@Lion](https://forum.sovol3d.com/u/Lion)\ **Post date:** [May 10, 2025, 7:47pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/13 "2025-05-10T19:47:39Z")
This looks like it’s available to the EU. > **[Extruder Hotend Kit for Sovol Zero](https://www.sovol3d.com/products/extruder-hotend-kit-for-sovol-zero)** > > Upgrade your Sovol Zero with this complete Extruder Hotend Kit featuring a PT1000 thermistor, 85W ceramic heater, copper alloy heat block, brass nozzle, and high-temp silicone sock. Reliable performance up to 400°C. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 10, 2025, 8:27pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/14 "2025-05-10T20:27:25Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/2/2978cfe122ba5e77be7ef64de337efcfe21a7c8e.jpeg) Lowering the fan hits 2 screw heads > [@Liberty4Ever](#): > > I want a Microswiss hot end for compatibility with my FlowTech nozzles. But if your invested in FlowTech nozzles already cutting slots in the fan housing wouldn’t be hard. ---
**Author:** ![noswall](https://avatars.discourse-cdn.com/v4/letter/n/e9c0ed/32.png) [@noswall](https://forum.sovol3d.com/u/noswall)\ **Post date:** [May 11, 2025, 9:39am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/15 "2025-05-11T09:39:10Z")
I was thinking more along the lines of adding spacers between the part that runs along the Z rails and the bed holder. ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/a/a53ad7d850939f9648253ab0b23b09491fc2c782.jpeg) Added bonus: If I design the part right, I can mitigate some of the front to back tilt of my print bed. ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 11, 2025, 4:51pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/16 "2025-05-11T16:51:50Z")
Raising the bed runs into a few issues. ![image](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/9/9bec6c4c1b7b9850b0114b888c219405b9d9a4c0.jpeg) ---
**Author:** ![Liberty4Ever](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.sovol3d.com/liberty4ever/32/3265_2.png) [@Liberty4Ever](https://forum.sovol3d.com/u/Liberty4Ever)\ **Post date:** [May 17, 2025, 11:45pm UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/17 "2025-05-17T23:45:22Z")
> [@Lion](#): > > This looks like it’s available to the EU. Thanks! I just ordered a new Zero hot end. The heat break jam I had a few hours ago may be so bad that I’ll need a new hot end to fix the printer. Sovol didn’t provide a shipping estimate to the US but I assume the free shipping is the proverbial slow boat from China, one month delivery. I didn’t see any Zero parts on Amazon. If the hot end is available on Amazon soon with two day shipping, I’ll probably buy it and the one that’s shipping from China will be a spare. > [@noswall](#): > > I was thinking more along the lines of adding spacers between the part that runs along the Z rails and the bed holder. I was thinking a good way to make the MicroSwiss SV08 hot end work on the Zero would be to add a lowering block between the X gantry carriage and the extruder mount, but raising the bed 10 mm with a calibrated shim could be a good way to correct the drooping front of the print bed. ![Zero-BedMesh-65C-15MinuteSoak-20250503-171132](https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/6/676568283d6905e49d649a3e4a4ec6e70659ee9d.png) ---
**Author:** ![cardoc](https://avatars.discourse-cdn.com/v4/letter/c/ec9cab/32.png) [@cardoc](https://forum.sovol3d.com/u/cardoc)\ **Post date:** [May 18, 2025, 12:43am UTC](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/18 "2025-05-18T00:43:59Z")
can’t raise the bed without a new shroud for the fan… and where does the eddy go. See above [https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/12?u=cardoc](https://forum.sovol3d.com/t/i-broke-my-thermistor/7785/12) And it is 15.8 mm difference from the SV08.