Відео

EDM isn't quite the same, but works on a similar principle to Plasma cutting.

already had the link for the filament colors library saved, wonderful idea. The EDM equipmentlooks really interesting. Also, yes, I love the idea of the mini shredder. I've got a few "medium" size moving boxes full of waste PLA just waitingto be shredded and re-used. that'd be a start, at least.

I can't even express how much respect I have for the guys that made that EDM machine. If I'll ever need to machine gears, this would be the way... I'm not sure I _need_ this machine, but I want it.

2:37 pretty sure this guy is one of Elon's experiments

Bro, the filament color library is fucking amazing

I've been wondering if you could use a pantograph to make a cheap and extremely accurate 3D printer.

Bro said "This is good for gears" and he just had me right there. I waaaaant it!!!!🤣

I'd love to see if it could do larger parts like 1 inch thick. if it could then I would be interested, but just a few mm thick is not really any better than a DIY plasma for less capability.

The EDM machine with the nano light saber demo was awesome to see in person.

10:47 5KHz sparks? How loud is the high pitch noise from that?

Wow, I search for shredder since long time. Thanks, I print this.

Hi, there is also an other guy (@HomoFaciens) who is experimenting with EDM. He is building it from mostly hosehold items.

If reliable, I could see purchasing a larger unit for my engineering department. I would love one for EDM cutting large gears. 40k USD would be a good target price for a large corporation to not blink twice on it.

I dont care much about a safe shredder but having a cheap shredder would be dope

Yes! Yes, I would love to see an inexpensive part grinder/granulator!

I keep wishing that there was a RepRap fest in Florida or some other state closer by cause man do I wish I could go.

Really cool seeing how quickly the water gets dirty, like that's where all that metal magically disappears to. When they get their higher precision designs out I dont think Ill be able to resist sub 1000 dollar EDM at home, especially the sorta 4th axis solution.

With an EDM machine I could at last make use of the titanium and tungsten I have in my scrap box. It would even cut tungsten carbide heating elements.

YESSS give us a smal shreeder for failed prints at home. pls i need this

gub mir schredder

If the EDM machine could start inside of the material automatically... It would be very versitile. So a combination of several methods (to punch hole) would be useful

The Bettawire looks absolutely amazing. I was wondering when someone would build something like this. I'll wait another year or two to let them iron out the kinks, but I'm pretty sure that I will buy one of those sooner or later.

Very cool exhibits you showed here. The cutting tech that can be available for the enthusiast is great. The filament indexing and color matching website is superb and will definitely be using that. Thanks for sharing your experience

0:10 Oh hey that’s my Dad XD

You can't deny the passion of the guys at Rack Robotics to make all this. I really hope they can create a successful company. I ordered the fish tank already

The best tool/machine isn't the one that's the best, it's the one you can have/afford/manage. I develop software for industrial extruders: to give you an idea, during processing they use tens of kg of plastic per minute, the feed screw alone weighs 20 tons and they have tanks of 1 or 2 tons of pellets. They are certainly better and faster than our 3D printers: but if you don't have several millions, a warehouse, 4 or 5 operators etc. you can't have or use it. Same thing for CNC: I modified an Ender 5 Pro and a Plus to also use a spindle. In aluminum I can only do 0.16/0.2 DOC: slow but better than nothing. Next thing: EDM for sure.

I can think of a dozen uses for Open Source Electrical Discharge Machining with my RC's. I'll have to keep my eyes on this project. 🙂

Wow, some actual good news for us mere mortals for once and not corporate-to-corporate shilling with exorbitant pricetags.

Oh man I need EDM so badly... No idea what I'll make with it.

It would be really cool to get some community pressure put on all of the filament manufacturers to send samples of everything they make to the library

These two guys at Rack Robotics EDM know their stuff, inside and out! Very impressive! Looks like a mostly "turn key" unit for practical use will end up ~ $2000 to $4000, which is and absolute bargain! Good luck to them and thanks for the work to get it to "here".

Any risk to vision from UV radiation from the arc?

Ok

03:12 Elon Musk vibes

13:20 Excellent question! How does the system clear a short?

1:36 LOL thats a tiny voron

Im currently in the CAD design phase of making a custom EDM machine myself! I hope to upload videos to my channel in the following months after I move. I'll probably use the rack robotics pulse generator and a onefinity cnc as the xy and z gantry. To my knowledge one thing not mention at all by Rack robotics and CNC Kitchen is the water filtration system and the lack of having no flush cups which would GREATLY improve speed and quality. EDM is a lot more complex then a hot wire foam cutting machine. Half of a real EDM system is the water filtration. I love what rack robotics is doing for EDM but I strongly believe rack robotics is overengineering their design. A core xy machine for EDM is stupid and drives up the cost for no benefit and because half the machine is submerged in grimy water expect rust because 316 stainless steel is not rust proof. For larger parts, production parts, or if they want their machines to last rack robotics needs to find a easy and cheep solution for these fundamental problems without stupidly overengineering.

Industrial EDM machines have apps for your phone to monitor weekend long burns. Most mold shops have at least a sinker and a wire EDM. I'm a laboratory machinist at a university in the states so I get to cut lots of weird materials. I've would love to cut a diamond!! My least favorite material to EDM is some weird steel (can't remember the name) made for heating elements. Kept breaking the wire no matter what setting I changed!! Grr!! WC cuts like butter!

21:00 Except color varies a lot. It's rare to order the exact same thing months apart and get the exact same thing. It has to be from the same die lot to have a chance of being the same.

The main result of my outdoor durability testing is that PLA is not very badger-resistant. (it was a cat flap. badgers like to eat dry cat food)

The Shredder is really eye catching! I want to build one and get a filament extruder now.

Edm is my favourite music genre!!! Also I guess the wire thing is cool

Love the Filament Library. Seems like it's super intuitive and easy to use. I was really curious regarding the comment at 22:55 regarding delta-E calculation and the site-speed impact. I presume that sorting and calculation of delta-E could be pushed to the local client, but I'm no web-dev so I may be wrong.

Wow. You can really see the passion of these folks. I love seeing them progressively talking faster during the conversation because they are just so excited to get the information out

I would like to see an EDM machine cut a neodymium magnet in concentric conical circles so that each inner piece repels the outer piece in a locked extendable cone. It would be like a magnetic spring that would collapse down to the original magnet size the spring up to maximum height.

Funny thing, I'm working on a shredder in a firm mentioned in the vid

Having a wire EDM at home would be so cool.

I'm in the market for a 3d printer, I'm european, and I would like to buy the MK4... but how can I justify it to myself when I can buy the A1 for literally half the price, or the Mini+ which cost almost double of the A1 mini, without talking about the X1C which cost the same ? And all of this for an inferior product ? if Prusa was on par of Bambu and cost like 10% - 20% more, I could justify it to myself to support opensource and locally produced, but right now I can't. Next month I'm buying a printer and is going to be in all probability a Bambu. Prusa had years to innovate, instead they stuck to the same product while iterating a little bit because it was good enough. Now they're seeing it isn't, in fact, good enough anymore. I would only buy a Prusa today if I was an european governement entity or a partcular industry and needed the safety and confidentiality assurances that the chinese can't provide. I think it is in fact a possibility that prusa will be forgoing the user market in favor of more "business" oriented ones, where the intrinsecal quality of the printer won't be such a factor as much as all the administrative issues behind it.

Wire EDM machines have been very expensive. This is should do very well.

Thanks for showing off the shredder. It was awesome getting to meet and talking with you in person! 😊