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Topic: Really universal soldering controller (Read 1047168 times) previous topic - next topic

Re: Really universal soldering controller

Reply #1980
I suppose it was some initial connection issue, because with a dummy load you've connected TC in pretty much the same way.

Re: Really universal soldering controller

Reply #1981
Thank you for your quick reply. I agree with you, but I still don't understand what is going on. I reconnected the dummy load as follows and temperature measurement stops working.
[attachment=0]

The only difference is that TC+ now connects directly to SENSEA, instead of passing through the resistive element(s). Is this an issue with the offset of the Diff. amp?  By the way, calibration works. Also, I see -.007 V. at the VTemp output when it is working. Is this correct?

Re: Really universal soldering controller

Reply #1982
Doh....it appears apologies are in order. The circuit is actually working as designed. A wiring error at the connector reversed the TC polarity and caused the problem. I have no idea why I didn't spot it earlier. Thanks again, afedorov for responding. This has been a very interesting build and I am looking forward to replacing my 30 year old Weller station.

Re: Really universal soldering controller

Reply #1983
Hello Guys & Unisolder users,
has anybody connect desoldering Iron or gun to unisolder station? I have ZD-553B desoldering gun that i want to use with the unisolder. Does anyone have an idea how this is connected? Or other desoldering solution? I would be happy about any suggestions.

Re: Really universal soldering controller

Reply #1984
heya longtime lurker here

are there more informations how to actualy trace the curves to add other irons ?
could not find anything in the previous posts -> i want to add the jbc nano series ..

im talking specificaly about the

- polynomial floating point voltage/resistance to temperature calculation

anything else is pretty much straight forward

thanks

Re: Really universal soldering controller

Reply #1985
[quote author="Railjumper"]Hello Guys & Unisolder users,
has anybody connect desoldering Iron or gun to unisolder station? I have ZD-553B desoldering gun that i want to use with the unisolder. Does anyone have an idea how this is connected? Or other desoldering solution? I would be happy about any suggestions.[/quote]

as for the ZD-553B
the unisolder5.2 could drive the iron yet not the vaccum pump required for desoldering

you would need to change the firmware so your iron is supported .. but that means you gotta do some reverse engeeniering and benchmark the curves -

the question is do you really need that much controll for tht components ? i doubt it - rarly any of them are THAT temp sensetive .. and for smt desoldering hotair is mostlikely the better choice

Re: Really universal soldering controller

Reply #1986
Hi,
i would only control the ZD-553B not the vaccum pump. In the beginning of this thread was the talk of a PC Software. With this, the curve would to be adjusted and a new device will be added. Whrere can i find this Software. i Think the ZD-553B is PTC driven. Can everybody tell me how this is connected? No one has a desoldering gun in use?

Re: Really universal soldering controller

Reply #1987
i doubt you find many of us using a desoldering iron on such an "expensive" station .. simply because it just drives half the unit + the components which you can desolder with such a gun/iron arent that sensetive to beginn with

anyhow

the software is inside the firmware zip ..
but the curve im talking about is the iron configuaration in code

and yes every custom iron will need such an part in code .. where you define id / the 2 resistors and the overall behavior of it

Code: [Select]
  {
        0,
        0x020B,
        "ERSA RT80              ",
        {//-----------------------------------------------------------------------------------------
            {
                2,                          //Type
                {
                    0,                      //HChannel
                    5,                      //SChannel
                    0,                      //CBandA
                    1,                      //CBandB
                },                         
                167,                        //CurrentA
                0,                          //CurrentB
                0,                          //HRCompCurrent
                21,                        //Gain
                284,                        //Offset
                {                          //TPoly
                    -145.7299,              //c0
                    86.2582,                //c1
                    0,                      //c2
                    0,                      //c3
                    0,                      //c4
                    0,                      //c5
                    0,                      //c6
                    0,                      //c7
                    0,                      //c8
                    0                      //c9
                },
                -1,                        //WSLength
                0,                        //PID_DGain
                (UINT16)(0.4 * 32768),    //PID_KP
                (UINT16)(0.02 * 32768),    //PID_KI
                4,                        //PID_OVSGain
                80,                        //PID_PMax
                80                        //PID_PNom
            },
            {0}
        }
    }

anything inside  //TPoly is the irons curve to balance the heating correctly
(the 10 c values )
sparky did not give us much information about it as of now - im hunting for the same infos

Re: Really universal soldering controller

Reply #1988
i think i found what i was looking

projector42 posted something at page 106
https://github.com/ncp1402/ncp1402.github.io
that helps with the c-values



Re: Really universal soldering controller

Reply #1989
Hi everybody,

I am about to start building the Unisolder 5.2, parts are en-route as I type. I ended up having to source from three different suppliers: Farnell, Mouser and Arrow (who are offering free international shipping, no minimum order at the moment, very convenient :-))

5N44P's Github page proved invaluable in making sure to get all the correct parts and it prevented me from buying parts I did not need as well, so thanks for putting in the effort 5N44P!

Total cost without case and transformer is 160 EUR, a bit more than I expected. One could build one for 60% of that considering the MOQ of most parts. I still should end up around 200 EUR without the iron, which is not too bad I guess. I did buy Amphenol connectors which is a fair portion of the total amount but I wanted 5 amp rated bayonets, which have no Aliexpress equivalent as far as I could tell, at least not with 8 contacts.

Can anybody recommend a crimping tool for the Molex connectors?


Re: Really universal soldering controller

Reply #1991
Thanks Tony!

Re: Really universal soldering controller

Reply #1992
Quick question: Should C19 and C20 be conneced at one end? on my board they seem to be.

Re: Really universal soldering controller

Reply #1993
Thanks, no worries then ;-)

Re: Really universal soldering controller

Reply #1994
Hi everyone!
I would like to do this project with my friend, but I got into problems.
At first I wanted to order the board from JLCPCB but their ordering page would not read the gerber files properly. No image would be produced and no data (like the board size) or anything else would be read. I know the downloadable gerber file has many disjoint gerber files in it so I have separated the full board gerber from the rest, and this is the result I have got. Curiously their online gerber reader could load the gerber file properly. Non the less I can't order it this way.
Can someone provide a gerber file that works with JLCPCB?

I tried fixing it, but very few programs can open it, and only for viewing. Searching online I couldn't find out which software was even used to create it.