Author Topic: CFW for KSGER/Quicko STM32 Soldering Stations (Read 874267 times)

ygi · « **Reply #2625 on:** February 07, 2022, 09:40:08 pm »

Both stations are STC based, meaning they aren't compatible with David's firmware.
Quicko's handle isn't that bad, it's serviceable. It's less practical because the locking screw makes it harder to swap tips and it's also less accurate for fine work because the distance from the tip to your fingers is significantly longer. If you've got shaky hands like me when doing very precise work, Handskit handle is a huge help. But sometimes, having a longer tip helps accessing a component between taller components (like heatsink or something). Handskit handle gets uncomfortably hot when in use for over 30min. It's not "burning hot" but still, more heat shielding would be needed.

Finally, when it comes to internal vs external power supply, your tip will most likely not be grounded with an external supply. Sometimes, Chinese manufacturers fail at grounding tip even with internal supply but it's usually easy to fix.

DavidAlfa · « **Reply #2626 on:** February 07, 2022, 11:23:27 pm »

These T12 mini have stm32:

www.aliexpress.com/item/1005002306563910.html
www.aliexpress.com/item/4000567017884.html

AleksoBre · « **Reply #2627 on:** February 08, 2022, 12:09:40 am »

I know they aren't, but I was planning on maybe getting an stm controller and replacing the stc one. Also, I think this is the most active t12 forum so it was a good bet someone was going to answer

.
About the quicko tip, I was wondering if I could just stick some silicone tape (like the one you use for bike handlebars) around the metal so I could hold it closer to the tip. I do have shaky hands...

AleksoBre · « **Reply #2628 on:** February 08, 2022, 12:11:23 am »

They don't ship to Serbia

DavidAlfa · « **Reply #2629 on:** February 08, 2022, 01:41:50 am »

You can't replace a stc with a stm32, physically they are completely different.

I checked shipping to serbia, why is so extremely expensive? It's more expensive than the station itself!

This small T12 has very cheap shipping to Serbia, yet there's not CFW for it, might be enough for your needs if searching for something economic, also uses 5.5mm barrel connector suitable for your laptop charger:

https://www.aliexpress.com/item/1005003209383311.html

AleksoBre · « **Reply #2630 on:** February 08, 2022, 10:07:39 am »

I saw this comment and thought that you can.
https://www.eevblog.com/forum/reviews/stm32-oled-digital-soldering-station-for-t12-handle/msg3970565/?topicseen#msg3970565

Never mind, not a big deal. It's the same handle though. Probably going to end up getting the 7 segment display one. Thanks!

DavidAlfa · « **Reply #2631 on:** February 08, 2022, 01:00:37 pm »

Yes, you can replace a stm32 clone with a real one, as it's meant to be a direct replacement.
But this can't be done with stc, the package and pinout is completely different.

AleksoBre · « **Reply #2632 on:** February 08, 2022, 01:02:57 pm »

Okay, I get it now. Thanks.

peekree · « **Reply #2633 on:** February 08, 2022, 06:58:34 pm »

Can this firmware work in ksger c210 ?
I'm looking for resource of that controller and nothing found for the board sch and pict.
Did you guess that a same board as t12 ?

DavidAlfa · « **Reply #2634 on:** February 08, 2022, 10:55:54 pm »

Probably very much the same but no idea unless someone posts pictures of the board.

ricktendo · « **Reply #2635 on:** February 09, 2022, 05:32:54 am »

Quote from: DavidAlfa on February 08, 2022, 01:41:50 am

You can't replace a stc with a stm32, physically they are completely different.

I checked shipping to serbia, why is so extremely expensive? It's more expensive than the station itself!

This small T12 has very cheap shipping to Serbia, yet there's not CFW for it, might be enough for your needs if searching for something economic, also uses 5.5mm barrel connector suitable for your laptop charger:

https://www.aliexpress.com/item/1005003209383311.html

Better to get a Pinecil, it only costs $26 and it does support CFW

https://pine64.com/product/pinecil-smart-mini-portable-soldering-iron/

peekree · « **Reply #2636 on:** February 10, 2022, 09:49:02 am »

can i use c210 catridge with this firmware right now if i use original t12 v3.0 board ?

DavidAlfa · « **Reply #2637 on:** February 10, 2022, 01:52:26 pm »

C210 connection is the same as the T12, so it should work without modifications (But will require calbration)

peekree · « **Reply #2638 on:** February 10, 2022, 02:05:14 pm »

yes i already read at github, i mean on firmware side can it detect the c210 ?
and also the power supply input it'll just work at 24v or i have to change with 12v ?

DavidAlfa · « **Reply #2639 on:** February 10, 2022, 05:29:18 pm »

Most stations use specific resistor values in the handle to detect that, but there's no way the firmware can detect the cartridge type with the limited Ksger hardware unless modifications are made, something that would require fine soldering to the stm32 pins, so the idea was discarted long time ago.

So cartridge type must be manually selected in IRON menu.

peekree · « **Reply #2640 on:** February 10, 2022, 06:59:26 pm »

ok i understand right now, but i must down the supply input to 12v or the firmware can do that automatically?

https://imgur.com/gallery/6mrrU2Y

i found the pict of ksger c210 controller, but it seems a new board they call wlida that use MM32.
and someone has been modded for t245 at 5th image.

DavidAlfa · « **Reply #2641 on:** February 10, 2022, 11:25:04 pm »

The firmware can limit the power that goes into the cartridge, ex. 50W max, based on the reading of the power supply voltage and the heater impedance (It's user-adjustable)
Basically it limits the pwm active time, so if 100% pwm would make 100w, to set a 50W limit it will limit the duty to 50%.
The power supply voltage and the power limit is refreshed on every pwm cycle, so the accuracy is pretty good.
However it can't regulate the voltage in any way, there's nothing to do so in the board, it might be a better firmware but can't make miracles

The mosfet will switch much better at 24V than 12V, in fact at 12V it might overheat when using high current loads like a JBC tip.

sofakng · « **Reply #2642 on:** February 15, 2022, 07:10:46 pm »

Hey guys, I'm not sure if this is the correct place to ask but I received my KSGER 2.1S iron today and I was wondering what modifications I need to make it safe?

The PCB is black and labeled "V2.05". The control board is blue with an STM32 but no version:

More pictures: https://imgur.com/a/F3JDS1J

The one thing that concerns me is that I'm not seeing continuity between the solder tip and the earth ground plug?

Thanks for any help!

ricktendo · « **Reply #2643 on:** February 16, 2022, 04:54:58 am »

sofakng · « **Reply #2644 on:** February 16, 2022, 08:14:04 pm »

Thanks, but those are for an older version of the PCB.

Anyways, I've found a few other guides to ground the case and tip.

However, I can't seem to slide the sleeve over the tip onto the handle. Has anybody else had this problem? I suppose I could just grind the sleeve a bit but I'm not sure?

ygi · « **Reply #2645 on:** February 16, 2022, 09:00:06 pm »

It should slide effortlessly as in gravity alone should do it. At the tightest point, my sleeve has an inner diameter of 5.9mm.

sofakng · « **Reply #2646 on:** February 16, 2022, 09:04:07 pm »

Thanks for the reply ... Mine measures 5.5mm so either they sent the wrong sleeve (with the correct handle?!) or it's a manufacturing error.

I've contacted the seller but there should be harm in filing/grinding a bit of the sleeve to make it wider, right?

ygi · « **Reply #2647 on:** February 16, 2022, 10:16:13 pm »

Yeah, as long as it's the only defect, filing that to correct specs will do.
Here are some more measurements to make sure you received the right part:

inner tube diameter: 7mm
inner tube diameter at the top end: 5.9mm
tube length excluding locking nut: 20mm
tube length with locking nut: 25mm

lfldp · « **Reply #2648 on:** February 18, 2022, 05:19:06 pm »

@DavidAlfa i have few questions
i have in plan to buy this station https://www.aliexpress.com/item/1005003713432532.html?spm=a2g0o.productlist.0.0.2b4a538bkQ5GYr&algo_pvid=8d5d11eb-da7b-4f09-ae4b-c0cbda821623&algo_exp_id=8d5d11eb-da7b-4f09-ae4b-c0cbda821623-18&pdp_ext_f=%7B%22sku_id%22%3A%2212000026905474132%22%7D&pdp_pi=-1%3B243.53%3B-1%3B-1%40salePrice%3BPLN%3Bsearch-mainSearch

this version is with larger oled display and stm32 later i wants assembly it make photos etc but before i buy it wanna ask something , how much power i need to fully drive T12 tips - 72W or 75W ?! because ksegr t12 claim about its power transformer deliver 120W 24V/5A while QUEEKO T12-959 claim about its station have power 108W 24V/4,5A - is this big difference in tip heating speed ? 72W is enough or 75W ? i ask because in latest station model which i buyed BAKON 969D 60W or 55W this is maximum power heating of this station and is reall crap i must wait much more to heat tip and it lost temperature faster in sharp tips
regards

ygi · « **Reply #2649 on:** February 18, 2022, 07:30:36 pm »

72W is the theoretical max those T12 tips can draw. Though to use that much power, you'll need one of the biggest tips 'cause you need actual contact surface to transfer heat to the board. You'll be lucky if you manage to draw 50W with the usual D24, BC2, or other small conical tips.
On the other hand, you wouldn't really want to run a Chinese PSU at 100% load anyway as the usually specify their peak power instead of continuous running power. So you don't really need 72W most of the time and when you do, it's better to have some extra power to avoid voltage sag. Pick a 96 or 108W for best results, anything beyond that is marketing BS.


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Author Topic: CFW for KSGER/Quicko STM32 Soldering Stations (Read 874267 times)

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