document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Get great content that you love. (https://forum.esk8.news/t/kweld-spot-welder/6926/99). My 2nd test was successful as I fixed all the issues, I designed my own Semi-automatic transformer control circuit, to control the ON/OFF and time duration. It doesnt matter if the push button is pressed for a long time, it wont do the welding. You are stressing the 2000A boundary but that is when the current is switched off or am I missing something here? DIY Portable 12V Battery Energy Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welders Accessories Specifications. I practically tested 100uF capacitor and it worked for me. And since this is combined with a high welding current output of 50A to 800A, you can use this battery spot welder for highly detailed circuits with ease. As welding power is proportional to current squared, that drops even quicker. Altium Designer is the worlds most trusted PCB design system. Never perform these tests alone if you are doing it for the first time. My board have UIRFS8409. Thats why our kCap works differently: due to its high capacitance it is only marginally discharged, and supplies near to constant current during the entire pulse. And despite being a budget option, this YaeCC battery spot welder also includes a 1-year warranty for peace of mind. I have the impression it should be possible but I didnt read anything on that, so I prefer to ask. 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I have designed this simulation for you guys, so that you can easily understand how this circuit actually works. But I admit your mosfets and driver must be able to do this. Yes, that isnt a bad idea. You will have to release the button to charge the capacitor and press the button again to turn ON the relay2. 0.1V per 1000A seems low use of the dynamic range of the AD converter. https://www.keenlab.de/index.php/product-category/kspot-welder-kit/, https://www.keenlab.de/wp-content/uploads/2018/07/kWeld-assembly-manual-r5.0.pdf, https://www.keenlab.de/wp-content/uploads/2018/07/kWeld-operation-manual-r3.0.pdf, https://www.keenlab.de/wp-content/uploads/2019/01/190128_kweld_release_r2_9.zip, https://www.keenlab.de/index.php/product/kweld-firmware-update-tool/, https://endless-sphere.com/forums/viewtopic.php?f=14&t=89039, http://www.eevblog.com/forum/projects/guesses-on-what-i-am-attempting-here/, https://www.keenlab.de/index.php/portfolio-item/kweld/, http://www.eevblog.com/forum/projects/guesses-on-what-i-am-attempting-here, https://www.youtube.com/watch?v=WdDi1haA71Q, https://secondlifestorage.com/t-Easy-to-3d-print-K-Weld-electrode-housing-files, https://hobbyking.com/en_us/turnigy-alpha-6500mah-2s2p-140c-premium-hardcase-lipo-battery-pack-roar-approved.html?queryID=aad608d5bcc29a4bf0dc869778304ff1&objectID=85619&indexName=hbk_live_magento_en_us_products, https://hobbyking.com/en_us/turnigy-rapid-5500mah-3s2p-140c-hardcase-lipo-battery-pack-w-xt60-connector-roar-approved.html?queryID=e0df7c14aa1cf962e2b939ea725b97c5&objectID=85637&indexName=hbk_live_magento_en_us_products, https://hobbyking.com/en_us/turnigy-rapid-5500mah-4s2p-140c-hardcase-lipo-battery-pack-w-xt60-connector-roar-approved.html?queryID=966cb393bfebd5f79ec0e2b38147345c&objectID=85640&indexName=hbk_live_magento_en_us_products, https://eu.mouser.com/ProductDetail/KEMET/ALS70A135QT025?qs=AQlKX63v8Runp47hJ6lW9Q%3D%3D, https://shop.gwl.eu/LTO-technology/Cylindrical-Lithium-Titanate-Oxid-Battery-Cell-LTO-2-3V-30AH.html#tab3, https://forum.esk8.news/t/kweld-spot-welder/6926/99, https://www.global.toshiba/ww/products-solutions/battery/scib.html, Turnigy nano-tech 3S/5000mAh/130C Lithium Polymer battery (, Turnigy graphene 3S/6000mAh/65C Lithium Polymer battery (, Extremely rugged MOSFET-based power switch and mechanical current bus design, Power switch internal resistance: 120Ohm, Undervoltage lockout for power switch transistors, Input voltage, output voltage, switch current, and logic supply voltage measurement, Logic supplied directly from main power source - no need for a separate auxiliary power supply, Screw terminal for external trigger switch, Logic supply holdup capacitor during pulse firing, Central weld control algorithm uses a Joule metering approach instead of a simple timer, eliminating the need for two-pulse firing and providing more consistent welds - the amount of energy that is deposited into the weld spot is always kept constant, Ability to detect a failed weld, and acoustic feedback to the user, Calibration procedure to cancel out electrode lead losses, Manual mode, triggered from external switch, Automatic mode, accompanied with a warning sound and triggered with an, Audible feedback of weld process completion, Numeric feedback from an executed weld, assisting the user to achieve best results: pulse count, deposited energy amount, required pulse time for this energy, measured current flow, measured ohmic resistance of weld spot. A 5S LTO battery would have a series resistance of 5milliOhms or lower with a maximum voltage of 14.5V. Now, this setup is the most basic setup and most of the videos and articles explain this much of the work, which is not sufficient. What I also do not understand is why kweld cannot benefit from the fact that when a capacitor is discharged also avalanche energy is reduced. ZHUVATAR store spot welder is suitable for people who want a budget-friendly and still need a model with decent performance. View cart for details. When the entire system is powered up, means, when the 220Vac wires are connected and the 12V dc power supply is connected. To help you out in picking the right one, we have explained all the features and details of these various battery spot welders. (3) These estimates are based on normal circumstances and are not a guarantee of delivery times. is it possible to mount a better flyback diode The specifiction is based on actual experimentation and long term endurance tests. Say I have and inductance of 1uH and a resistance of 6mOhms than L/R=160u so taking a preweld puls 100uS than the current only rises to 47% of the max. You cant ballpark via LTspice either, as this is a network with quite a few unkowns. Because putting more power in the weld enables to weld >> thats exactly what I am saying the more current the better. Typical 550uOhms , max 750uOhms @Vgs =10V (which is being used). kWeld does the rest then with its energy metering. My 2, Anyways, you can see I am able to perform the welding, the nickel strip is welded to the battery, but looks very dirty and this is because I dont get enough time to press the other electrode and the current starts flowing. *Please Note: These are affiliate links. Whether you are using your battery spot welder for thinner connections or thicker ones, you would want it to make secure connections that stay intact for a long time. The 745200J does not account for the system efficiency yet. Make sure to share your thoughts in the comments section. k'$oZoBaG+f,%B\G\/&pj}fY\JY1mZ-d45*&kXH! Spice simulations show that such a pulse can be 20-30ms and at the end 1800A is flowing (safe according to what you state). But why do you want to influence the current? >> Because putting more power in the weld enables to weld in situations where heat is conducted away fast, like with the famous ANR26650M1 cells. Imho I do not see the benefit of the solution compared to a Lipo or kCap unless you can get them at a bargain. However, this is only possible when your battery spot welder also supports variable welding sizes or thickness ratings. Ltd. is becoming a reference point as it is the trend of the day because very few companies provide end-to-end solutions like us. With Altium Designer you can create PCB designs with an intuitive and powerful interface that connects you to every aspect of the electronics design process. I used tooth saw and a grinder. 2018 keenlab UG (haftungsbeschrnkt). During my first test I could only see sparks, it may or may not weld the nickel strip to the battery. 4000$ for a professional Sunstone welding machine. Wear protective gloves and in the end all I want to say is make this Spot welding machine at your own risk. I want to turn ON the transformer when I have pressed both the electrodes. I am not developing a competitor device I just want to increase the applicability of Kweld. The reason for both cases is the significantly higher thermal and electrical conducvitiy of these materials in comparison with steel and nickel. >> youd need multiple of them, distributed across the bus bars. It is possible to power kWeld with two serial Maxwell 3000F 2.7V ? ?? https://shop.gwl.eu/LTO-technology/Cylindrical-Lithium-Titanate-Oxid-Battery-Cell-LTO-2-3V-30AH.html#tab3. I am using these homemade copper electrodes and I am still happy with the results, for professional welds you can order some good quality electrodes. This is relay2 the one on left side which connects and disconnects the 220Vac. When the capacitor fully discharges the relay2 is turned OFF and this way the transformer can only turn ON for a few milliseconds. Simple and intiuitive user interface - just adjust the desired weld energy up to 500 Joules with the dial knob; Overcurrent monitoring aborts pulse when triggered, protecting the power switch. Microwave Oven transformer is the best choice for building a homemade spot welding machine. YaeCCC is another comparatively smaller brand of welding machines that you can consider if you are on a budget but still want something that offers standard performance numbers. ?Limited Time Sale Easy Return. You have been completed the task of "Browse and add 3 products to wishlist".Please return to VIP center to receive your points. Thank you very much!!! You have been completed the task of "Browse and add 3 products to cart".Please return to VIP center to receive your points. (1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped. When Relay1 is in the OFF state, it charges the capacitor through this 12v power supply. Im sorry but may I know the background for these questions? Very interesting & neat project. It is possible thanks to the performance numbers of this spot welder which has a welding thickness rating of 0.05 mm to 0.2 mm. Our systems typically utilise GSM (global system for mobile communications) and GPS (global positioning system) technology like VTS, GPS vehicle tracking system, tracking systems for vehicle,vehicle tracker, GPS tracker, avls, GSM modem, automatic vehicle location systems, GPRS modem, GSM GPRS modem, GSM module, GPRS module, GSM GPRS module, GSM antenna, GSM GPRS antenna, GPS antenna, GPS tracking, vehicle tracking, vehicle tracking unit, GPS tracking unit, vehicle tracking device, GPS tracking device, tracking device, tracking unit, fleet management systems, fleet tracking, asset tracking, personal tracking, personal tracker, GPS personal tracking systems etc. You have been completed the task of "Search products and add to cart".Please return to VIP center to receive your points. While this entry-level battery spot welder is highly powerful for all kinds of spot welding requirements, it, unfortunately, does not mention any current output rating. If the weld quality is not sufficiently stable a dual pulse could be used. Now, we also have the following complete buying guide regarding battery spot welders in this listicle for helping you in your buying decision: Since some batteries are quite small and others are large, you also need to change your spot welding size respectively. You will know about this after practically seeing the results, lets start testing this very basic spot welding machine. Greetings, is the webstore still active in selling the product?..It seems that I cannot send my email inquiries.. Im not sure where youre getting your info, but good topic. Yes, current is measured via Rdson. I think I misunderstood you but now got the point. !D0H$Du}k';UR @ffbVWWWWUW/l>xoKg9UpP6Xpq^Z7Zy=qxaPZ>]%(fIyDKv6O7/p77'JG\0lmm?fj_]\}8i={Tk'v-`~6.8asbk foU[_W'k5u!F\tvg>YK}R/bV? Route it your way through any angle, tune for delay, Push, Slide, and Walkaround faster than ever. Right now, the relay2 is off so thats why the transformer is OFF and as a result there will be no welding. Works Great There is also another set of winding, which is the secondary winding and I dont need this winding. 3.5-5.5ah 45C 3S aeromodel lithium battery pack, -This circuit with a 12V battery will become an energy storage spot welding machine for welding nickel pieces such as lithium batteries and nickel-chromium batteries. I get this error when I tried to run the script "TypeError: My name is Shahzada Fahad and I am an Electrical Engineer. I like that idea, and this would be possible with kWeld in general. Just send me an email, and I can answer your questions (also much quicker). Maybe you can explain to me where this estimate would fail and where the electrons would go? We will send a confirmation code to your mobile phone to verify that your contact details are correct. The total delivery time is calculated from the time your order is placed until the time it is delivered to you. Despite having a lower thickness rating, this battery spot welder is still able to offer highly accurate welds thanks to its high welding current output of 50A to 800A. Out of the various components used in most electrical circuits, you have to pay extra attention while welding and connecting batteries. I have designed this using the Proteus simulation software which is quite popular. If you are interested I can send you the status via a PM. This means that during the whole pulse length the power is higher than what you can achieve with a constant voltage and average power can be nearly 40% increased (at the first few ms even 200%-300%) and that power is better controllable because you can control the charge voltage. Are there possibilities to do e.g. ElectricalElectronicsEmbeddedPowerRoboticsARMIOT, Mini projectsMicrocontrollerArduinoSolarFree circuitsHome AutomationSeminar TopicsElectronicsQuestions, CapacitorsResistorsFiltersDiodesTransistorsAmplifiersIO DevicesThyristorsDC CircuitsNumber System, Welding Symbols | Basic and Supplementary Weld Symbols Types, 7 Best Miller Welders of 2022 Reviews & Buying Guide. Leave feedback about your eBay ViewItem experience, 12V 18650 Li-Battery Energy Spot Welder PCB Circuit Board/Auto Spot Welding Pen, - eBay Money Back Guarantee - opens in a new window or tab, cleared payment - opens in a new window or tab, - for PayPal Credit, opens in a new window or tab, Learn more about earning points with eBay Mastercard, - eBay Return policy - opens in a new tab or window, - eBay Money Back Guarantee - opens in a new tab or window. This would give me a nominal 11.5V, maximum 14.5V battery. But at some point, the MOSFETs will start giving up due to unequal current sharing and electro migration. 2.5kA if I reduce the loop area because that drastically reduces induction. But, before I am going to connect the electrodes, first I am going to check this setup. When combined with its welding current output of 50A to 800A, you can expect this battery spot welder to be the perfect option even for industrial usage. My two cents: In principle yes, only note that the voltage of 5.4V will be too low to have sufficient weld current. Fortunately, almost all battery spot welders include a wide range of accessories in the box. So, If you touch the soldering iron for a long time, there are high chances of battery damage and moreover with the soldering, you will never get neat and clean connections, if you are not a pro. Let me play the simulation so that you can easily understand how this circuit actually works. Your email address will not be published. This keeps pulse power constant, resulting in more repeatable results. >> I understand you are propagating constant current during the weld and why. While you may not have heard about Sunkko in the past, you can certainly consider its battery spot welder if you want something made for heavy-duty usage. (4 K)1ULp{3o{q11Va\a1D0 `mGp%S*r=,4He@X~Rgqq@*L|$uPq"l^a_ H-y{"aE,2,uz7H"cqRRye?:\ I6ZjO8I5j\T2U [-'5k8*#wX5d--U`tY%eb\7 #\'u\C-.N`!w2>J1bzZ1c@:Y~&adXmNFN}{Z3-@g 0>kX`=6BZz*D;a {A,HH| QV?jioFdW;mgdwp_vv=P%B|I5wS+0&zrfntL1#3?Wf3]hNdac p&P5Co: 0,"p8Kf8]\Lkdm Ke;k,4F%54KZjzX5/3"T?a,|/`Vwql#Rox ZC;pl I am sure you have fully understood how this circuit works. For starters, you get a welding thickness range of 0.05 mm to 0.2 mm which is used by most users. As you can see, the positive leg of the capacitor is connected with the common leg of relay1 and the other leg of the capacitor is connected with the Gnd of the 12v power supply. Enjoy Free Shipping Worldwide! Mini Land, Mini Golf Hiranandani Gardens,near Powai Plaza Cts No6,,powai Opposite Hiranandani Garden Hiranandani, Powai Mumbai - 400076, Maharashtra, India, Spot Welding Board DIY Welder PCB Circuit Module, DIY Portable 12V Battery Energy Storage Spot Welding Machine, Mini Land, Mini Golf Hiranandani Gardens,near Powai Plaza Cts No6,,powai Opposite Hiranandani Garden. What Holliday is 3 weeks? In this article, you will learn how to make this semi-automatic Spot Welding Machine using a 2, I added a control circuit and then all the issues were just gone.
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