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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder3 months ago
    DIY Arduino Battery Spot Welder

    I don't have any of those equipment. So I cannot run any test. is it possible that the single schottky failing would case such issue?I mean what a would be I experience if it fails?I don't have a spare right now orderwise I would chech if replacing just that would sort the issue?what do you thing. it is definitly not the software.

    thank you. it is so kind of you to try to help.I use a separate source for 12 for the arduino. 4s lipo with switching bec set to 12 volts constant.

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder3 months ago
    DIY Arduino Battery Spot Welder

    Yes it is very weird. The first time, I too tought it was heat. But it is not mosfer.As is started working, once I rebuilt the top part.I always use the latest version. The interesting thing is that the led ans pot work correctly according to the digital readout. Also the led duration I can is longer or shorter. The reason I say that it is shooting 20ms is that it just burns trough the plate 0.15mm, but then stops (now I think of it, could it be it stops from me releaseing the pedal?). Also mosfets are not blown and are working. Which again is very curious. Why I think it was heat. Is that the first time I let it rest for 10mins (cool) and it started to work again. However after that it did very few good ones and then failed permanently. Meaning that even a whole days rest did not help....see more »Yes it is very weird. The first time, I too tought it was heat. But it is not mosfer.As is started working, once I rebuilt the top part.I always use the latest version. The interesting thing is that the led ans pot work correctly according to the digital readout. Also the led duration I can is longer or shorter. The reason I say that it is shooting 20ms is that it just burns trough the plate 0.15mm, but then stops (now I think of it, could it be it stops from me releaseing the pedal?). Also mosfets are not blown and are working. Which again is very curious. Why I think it was heat. Is that the first time I let it rest for 10mins (cool) and it started to work again. However after that it did very few good ones and then failed permanently. Meaning that even a whole days rest did not help.That first time it failed, it was definitely warm and I did a lot of heads none stop. But the new board was just 7 or so. So total of about 20 welds.

    I think I will give it one more go. Inhave so many cells to weld. I will buy a smaller battery 50A.Also rebuild the entire thing (for a third time with new pcd and parts) I will noy add extra cable, just do like everyone else and have the battery right in front of me. I would like to add this schottky and tvs diode that you recommend. Would you be kind enough to point the right ones out to me with a direct link. For example from here Reichelt.deThank you very much

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder3 months ago
    DIY Arduino Battery Spot Welder

    I need to order more mosfet as blew them and need to change.Can I use this one? IRF1324Thank you.

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder3 months ago
    DIY Arduino Battery Spot Welder

    Just to let everyone know, I am out of pcbs

    Just to let everyone know, I am out of pcbs

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder4 months ago
    DIY Arduino Battery Spot Welder

    Yes it is still available, I have 6 pairs left. I will send you message with my email. I just posted a set to France, so I know the price of shipping, to anywhere in the EU is about 5 euros (with tracking and priority). Plus you buy me two bottles of beer and a set or two is yours. :) Deal?

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder4 months ago
    DIY Arduino Battery Spot Welder

    Hi Whitehawk. Yes, I am happy to report that it is working now. It was the JP connects.I would call it out mistake, but rather the video guide was misleading. It gave the impression that it was complete. Also there is not a sigle picture from that angle. Moreover in the video, at the end where is turns it all around: a) the focus is off most of the time, b) he is turning too fast, so more parts are blurred. But I guess it is still a help and free moreover. So I am not complaining, just putting this out there. Would have saved me from buying an extra complete set unnecessarily if the instructions were clear. Also would have save me spending twice the amount if the guy in the video, explained that his mosfet legs were only cut due to it being a reuse for the original project and that &quo...see more »Hi Whitehawk. Yes, I am happy to report that it is working now. It was the JP connects.I would call it out mistake, but rather the video guide was misleading. It gave the impression that it was complete. Also there is not a sigle picture from that angle. Moreover in the video, at the end where is turns it all around: a) the focus is off most of the time, b) he is turning too fast, so more parts are blurred. But I guess it is still a help and free moreover. So I am not complaining, just putting this out there. Would have saved me from buying an extra complete set unnecessarily if the instructions were clear. Also would have save me spending twice the amount if the guy in the video, explained that his mosfet legs were only cut due to it being a reuse for the original project and that "The Mosfet gate legs HAVE TO STAY INTACT" (don't cut them to look like the ones in the video). I followed exactly what I saw and that was my demise.

    No is will not. I don't mean the middle leg. I mean the left one. That is the gate, it is needed. Only the middle can be cut. But if you look at his picture, you will see that 2 legs are cut. That is just because he reused it from another project.The gate is the logic leg, it cannot work without it.

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder4 months ago
    DIY Arduino Battery Spot Welder

    Hi, Really need your help to get this things working. There are so many confising things on the instructions. I have rebuilt it twice and still not working. Free flow of current is going trough no matter what I do.Few things to note about misleading pictures and video:1. The first picture, plus in the video the MOSFETs have 2 of their legs cut off. That is the gate too. For noobs like me, I just followed what I saw and cut those legs, even thought it made no sense at the time. Only to realize at the end that they were only cut because they were reused from another project and had the gate cut before. However it was completely omitted from he video, when and how he did connect the gate to the board.2. The JP points. Again missing in any of the videos or pictures. Do I need to connect tho...see more »Hi, Really need your help to get this things working. There are so many confising things on the instructions. I have rebuilt it twice and still not working. Free flow of current is going trough no matter what I do.Few things to note about misleading pictures and video:1. The first picture, plus in the video the MOSFETs have 2 of their legs cut off. That is the gate too. For noobs like me, I just followed what I saw and cut those legs, even thought it made no sense at the time. Only to realize at the end that they were only cut because they were reused from another project and had the gate cut before. However it was completely omitted from he video, when and how he did connect the gate to the board.2. The JP points. Again missing in any of the videos or pictures. Do I need to connect those (I am guessing, for common ground of the signal).3. The 6 pin on top of the Arduino, it is part of the parts list and also I see everyone has it soldered in, but it seems quite useless for this device.Anyway all that aside. I am really going nuts here. I don't know what is wrong. The control board seems to work fine, led, timers, etc all doing what they are supposed to.The bottom plate is giving constant pass trough of current. I have reorder new board from PCB ways. Used a new set of MOSFETs, but still the same problem.Is this thing supposed to be open in the off state? That is if the controller is not connected is it supposed to pass through the current to the probes?Any ideas what I should look at? I will add pictures if needed.Thank you.AlexPS: I have a few sets of board pairs (8 paris). I am happy to distribute them here in EU. Contact me for details.

    I have printed 8 pair of PCBs in EU, shipping plus few buck and you can have a pair :)

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  • pompecukor commented on KaeptnBalu's instructable DIY Arduino Battery Spot Welder4 months ago
    DIY Arduino Battery Spot Welder

    Hi all, Please can anyone provide the template drawing of the aluminum cutout? The one shown in the video, for marking the hole positions. It is not included in any of the files. I have everything else. I got the pack from someone that bought it somewhere, but such a template is not included. Thank you.Also, generally what pulse ms are you all using for the more traditional 0.15mm? (in the video he said 9ms for 0.17mm). Also anyone with 0.20mm. I am also curious for that one too, the ms. I am using a 100A battery, so should be no problem.Finally, how often do you have to charge the battery? Like after how many cell top welds would you need to recharge? I have no idea about the actual consumption of this thing.Thank you so much.Alex

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