Making a spot welder takes a lot of work, calculations, time, money, and energy. It's not everyone that tries to make a spot welder by themselves that succeeds, that is why this DIY is necessary for you to gain the knowledge you need to make a spot welder with ease.
We have listed 24 DIY spot welder projects that you can DIY without having to spend too much money and time. Ready to build? Then check out the projects listed below.
Table of Contents
1. DIY Spot Welder
This project is particularly a long and complex one, you need to be experienced in electrical engineering to be able to understand what was said in the guide. This spot welder was made for a battery pack, and it features two unique methods of operation.
2. DIY Cheap Spot Welder
If you were to buy a spot welder, this will cost you about $200 - $800, but with this guide, you can make this spot welder for just as little as $10. It's cheap, easy to build and functional.
3. Upcycle Microwave Spot Welder
This is a great portable upcycle microwave spot welder. The main core of this spot welder is a transformer gotten from an old microwave the creator found on the streets. He turned it around to make a great spot welder, now you can as well.
4. Mini DIY Spot Welder
This is a mini spot welder, it's quite small, the creator of this guide only used one hardware component, a JLPCB customized PCB, and a few other connecting tools.
5. DIY Spot Welding Machine
So, here in this video guide, the creator used 2 microwave oven transformers and a wooden frame. This project is quite intense, if you're not an experienced electrical engineer, you might have issues finishing the making process.
6. How To Make A DIY Spot Welder Free
This guide won't demand much from you, it's a simple 18650 spot welder, pretty cheap and easy to make. This was made to weld battery packs, so if you need something that goes a little higher try out another guide.
7. DIY Spot Welding Machine
It's possible to make a spot welder machine from the comfort of your home. First, you'll need a 12v 3A transformer, some battery cells, and a few other easy-going components.
8. Cheap Spot Welder DIY
This is a super cheap spot welder that costs only $11. You'll need a transformer preferably from a scrapyard that will cost $2, connectors for $1, a 1-meter welding cable for $2, an aluminum square tubing for $4, and some door hinges for $2.
9. DIY Spot Welder
This is a small simple homemade spot welder, it can burn your fingers during the making process so be sure to take precautions and wear a glove before you begin the steps. It's a portable spot welder that is effective and easy to operate.
10. Homemade Spot Welder
So, finally, we are down to a spot welder guide that uses wood as the major material. It's not a complex build, you just need to build a wooden frame that will house the transformer got from an old microwave and the rest of the electrical components for connection.
11. Spot Welder DIY Tutorial
Here is another spot welder made with wood and some metal pipes. This particular build is a bit complex due to the combination of several materials to make one spot welder. Although, it ended up being a pretty great spot welder with a high success rate.
12. DIY Spot Welder
For this guide, you'll need a metallic frame, a transformer, a copper cable, a control panel, and a few other components. If you're not satisfied with the written guide, you can view the YouTube video tutorial guide, with a better explanation.
13. DIY Battery Spot Welder
This video guide is perfect for beginners, the creator did a quick demonstration and explanation of how this battery-operated spot welder works. This way you can build it anytime you want without even checking any other guide again. It's pretty simple to build and also quite inexpensive.
14. How To Make A DIY Spot Welder From Mosfet
With most working as the transistor for this spot welder, you'll need a few other components like a 2.2k resistor, a 1N4007 diode, and other essential components that are pretty cheap to get online.
15. Making A Spot Welding Machine
This particular spot welding machine is the best of its kind, it can weld a wide range of stuff, from iron plates to battery packs, and other heavy-duty structures. There is a building plan in this video description that will show you the step-by-step instructions on how to make this with ease, without spending much.
16. DIY Battery Spot Welder
This is a simple battery spot welder, no microwave transformer used, no heavy-duty capacitor used, just a few battery cells, an AC power supply, and a few other components.
17. How To Build A Spot Welder
This is a unique spot welder that has a controller board. The great thing about this particular spot welder is that it can be used in 2 welding applications, improves clamping by creating a double pulse, it has a solid electrode holder with an excellent electrode force adjustment which enables the current to be reduced for welding sensitive sections of your work.
18. Simple Battery Spot Welder
So, with a guide like this, you should be looking forward to a great spot welder like this. All you need are some MDF boards, steel bars, heavy-duty cables, a car starter solenoid, a 60A choc-block, and a timer relay circuit.
19. How To Make A DIY Spot Welder
You don't have to fish for a large spot welder if you have these materials: a microwave oven transformer, wall cord, soldering iron, screws, plywood, a 12 gauge wire, and lots more. The making process is simple to follow.
20. Homemade Crude Battery Spot Welder
This project is not so expensive, it cost 90€ which might be a lot of money or less in your currency. Nevertheless, it's still a great spot for a welder to build. The materials needed can be found on Amazon and eBay, the creator of this guide attached links to the items needed to make this spot welder. You can also check out the YouTube video guide for more information.
21. DIY Spot Welder From Microwave Transformer
Looking for a heavy-duty spot welder, try out this video guide, it has what you need to make one effortlessly. You'll need some components to get started, things like a microwave transformer, copper electrodes, binding post, DC input jack, brass standoff, 150A terminals, cables, 100A controller, and lots more. The making process is simple to follow.
22. Handheld DIY Spot Welder Using (MOT)
This is a simple DIY project with a video guide containing all the details on how to make this spot welder using a microwave oven transformer. There are other components that you would need to buy, so check the description below the video to see the links to where you can get them at a fair price. The making process is quick and easy once you have the supplies ready.
23. DIY Battery Spot Welder
Here is another battery-operated spot welder, it's easy to make and you'll need lots of battery cells, copper nails, nickel strips, a heavy gauge cable, a momentary switch, a choc block electrical conductor, and a solenoid relay. This project is great for beginners to learn a thing or two about welding and how to go about it with a few safety precautions.
24. Homemade Battery Spot Welder DIY
Making this battery spot welder is super easy, provided you have the necessary materials and tools to get the job done. The creator used some heavy gauge cables, a few components, and a car battery. The components are simple to set up, but a little experience can speed up the process. After making the component, you'll need to connect it to the positive and negative terminals of a car battery and now you can use it to weld battery packs and a few other lightweight structures.
Now, there you have it, spot welder ideas that work, and you can try them out right away. Every guide on this list above favors virtually everyone, from those that can't afford to buy certain components, to the ones looking for sophisticated stuff, it's all there willing and ready, so best of luck on your welding endeavor. Thanks for your time, cheers.