Wow, it's really great precision. I worked with Soviet EDM machine. And you know, your machine more accuracy. I wont to repeat this. Thx from Ukraine. Sorry for my English.
As someone who loves home shop equipment, I love that you made this open source for everyone. I don’t even know if I’ll make one but it’s still awesome to go look through the cad files you made available. Thanks so much! Looking forward to your future content!
Ran two Charmilles and japax for 4 years. I never got over the amazing shapes cut from the hardest material to such amazingly tight tolerances. To build one of my own is just not feasible. But damn! You're machine is incredible.
@20:15 "the glue did not work perfectly, there is still a very small little burr" This is because by using glue you electrically isolate the product when performing the remnant cut. The moment you cut the product loose from the material there is nothing that connects your part with the groundof the machine so the last bit will stay on it. When you use some kind of conducting vice , it will cut away the last bit of the burr, and you would even be able to skim that part, so you dont need to "stone" the part.
Magnets are the solution in this setting. For a detail that small a large flat coated magnet would be more than capable of maintaining the details position, and act as pass thru for the current at the same time.
@@PiGood That is a great idea. I was wondering if mixing CA glue and printer toner and used that as a glue to secure and conduct current. Guess you could just secure it with a second chuck clamping it from the other axis added for final cut too though.
even before cutting it loose. the resistance is increasing as less material is available and it just stop conducting before it's cut loose. the wire deflects into the main piece and leaves a burr
@@scotttod6954 Given my experience, in the event of non magnetic materials it would likely be easier to just use the glue to maintain the details position and contact/clamp a grounding cable to the detail. May cause some imperfections in the surface if the ground cable arcs but given the application here that would be more than adequate.
you are the blind spot of diy machinery that i was missing so long. thanks a lot for your work. If I could, I would start building EDM right now. Hope the community will grow to demystification this dark corner of properitary knowledge.
I used to work for a company that made high precision flexures like the one you made, the movement was done with stacks of piezo-electric tiles that change length when a dc current is supplied. The power supplies were up to 20 bit resolution over a 10micron(10e-6m) distance, meaning the you could step the distance ((10e-6)/(2^20))=9.5e-12m or 9.5 picometers.
Bought a book several months back on building an EDM machine from scratch, by Ben Fleming, but it's 10 years old, and I'd like to get one running this year if possible. Added my name to your list and anxiously awaiting your completion of the next arc generator production run. Thanks for the time and effort.
@@edgymushroom "Build a Pulse EDM Machine - The Next Generation" by Ben Fleming. It's a bit pricey at $50.00, and about 10 years old, but useful information if you want to try building one from scratch. I opted to purchase one of the BAXEDM arc generators to start, as I want to get a working machine running ASAP. Here's a email where you can probably get info on getting the book: homebuiltedmmachines@gmail.com .
I never ever make comments on youtube, but your machine will make you rich!!!!!!! Because i want it....and i am sure many, many others too. Its jaw dropping incredibile precision. Wow!!! Hats off,sir
Use magnets to hold parts in place when parting off. Or superglue little polished tabs across the kerf. Cleanup with acetone afterwards. (Former EDM operator)
Great Job. They definitely seem a popular purchase even at 3 thousand pounds or more. I'd look into what it would take to mass-produce this like 3D printers. Once the price is under 1000 pounds or so, you will break into the I just want it market.
Awesome to see the EDM finished after following it for so long. I would love to build one myself, but I know I have to many projects on my plate already.
i can see the steps between the two sides, it has to be perfectly flat, otherwise, the insert won't fit into the tool properly. this is how we do for our plastic injection mold.
304 ss has such a high coefficient of expansion that would have been tough on an industrial EDM let alone a diy one. I never thought I would ever see the the letters DIY and EDM in the same sentence! Nice job, Awesome video & instant sub.👍
Many many years ago, I was the office gofer fr a company that used EDM to shape tungsten carbide extrusion dies. The oil was almost black and the smell of ozone was overpowering. Nice to see how fa it’s come in 40 years 👍
Mate, this is right fuckin' brilliant. And good on you for bringing it to a place where others can learn more, compare techniques, and all that good jazz. I'm a software engineer trying to figure out how to do the same- give back to a community that helps me learn so much. While this doesnt give me THE answer, I do like knowing that a well presented specialisation is of huge value to others! Seriously great job!
Thanks for this video. Time to start planning my own build. Few projects need to be finished off first. So glad to have stumbled upon your channel. Cheers, Reuben
VERY GOOD. EDM is not something i need to use in my shop. But still a great demonstration of what can be made at home. Good work with the editing too. Thanks for sharing.
It uses a ton of wire by length of wire, but hardly any by weight. I've worked with an industrial machine before and it had a few different sizes it could use. The smallest was 5 thou. in diameter. The company got a kickback for recycling the spools.
I work with EDM, and have extensive experience with wire machines. Spools are the consumable, and run hundreds of dollars. I'm skeptical that a home machinist could afford to run a machine such as this. There is a lot of wire consumed per cut, and at my last job one spool would last maybe a few days of constant cutting. Obviously a home machinist would use a lot less, but I suppose it depends on application. I feel ultimately the people who would actually need this sort of precision would get better mileage out of just going to a local job shop and paying them to do it rather than trying to assemble and run a WEDM in their garage.
I think you will not get rid of the burr as long as the part is not electrical connected zu the rest. The hotglue only keeps the part in place. But to erode the material away it has to be connected to the sparkgenerator.
Would love a video on how you use fusion for EDM. I find a 2d generic post works ok but not great. Make sure you have good micrometers when attempting a fit like this, callipers even good ones can have a variance of close to the whole tolerance - from a toolmaker that runs Edm daily - I also usually only do 1-2 skin cuts but you can use them to sneak up on your final
Wow, I could make such great parts for my machines with this EDM machine. However, they are still way above my budget sadly. But it's a very cool project. Groetjes!
So 10 micrometers is .00039 inches for imperial watchers. That is small enough that you pretty much can’t feel it but modern technology makes it easy to achieve that tolerance on a part. Well, technology and skill
