Congratulations! I've followed this whole series and it's been very impressive. I think as you learn the machine you'll be able to push it a lot faster. Please continue to post about it.

Congratulations, that sounded like a proper machine. Nice work.

You have given a whole new meaning to persistence! Enjoy the fruits of your labour. Thank you.

Joerg. Thank you very much for the whole series so far. A magnificent project. Outstanding!

Nice work mate! Looks like a clean build so far!

The first test looks very promising. Very good job.

Well done my man, wall finish looks good!

Hai fatto davvero un gran bel lavoro, curato nei minimo particolari e da quello che già si vede di una elevata precisione. seguirò con entusiasmo l'evolversi della tua CNC Complimenti ancora per la pazienza e per la tua meticolosità nel lavoro. Bravo Paolo

Congratulations on everything. Very tidy work indeed! Thank your parents also for making and raising you, they did a good job. :)

Fantastic achievement, congratulations!

This build series earnd you a lot of viewers keep it up :) And congrats on one of the best diy cnc machines out there

@glennedward2201

Жыл бұрын

Way too many building like a Chinese model with shit rigidity and it only teaches others the wrong way to do it. Shaking my head I’ve seen 4 already today all made major mistakes in their builds.

@glennedward2201

Жыл бұрын

Also, Why go through all the work with epoxy granite base and that cheap head support and spindle?

Nicely done. Would love to see more of it running after you get it figured out.

@joergbeigang

4 жыл бұрын

I'll keep posting updates

This is amazing! The structure you created to mount the spindle has 3 parallel plates connecting the spindle to the z-axis. Those three vertical plates are parallel and have the ability to deform. If you box in that structure by putting some sheet metal plates on the top and bottom, creating shear walls connecting those three plates, it will be much, much stiffer. It may be stiff enough as is. But if there is chatter, especially in the x-axis direction, think about bolting some skins on the top and bottom of this three plates. This is a wonderful machine and an amazing project. Thank you for bringing us along.

@joergbeigang

4 жыл бұрын

That's what I did. Guess it's not visible in the vid. got a 4mm aluminum sheet on top. Nothing on the button so far. Got to go somewhere to bend it first. Only got a very small home made bender in my shop ...

Nicely done!

Awesome machine! Congratulations to your success and thanks for sharing! Damian

Lovely, put a few covers on and it’s finished 👍

Sounds solid

Super work! 😀👍

@joergbeigang

4 жыл бұрын

Thanks!

Well done!

Very nice watching this come together... if you haven’t seen Piotr Fox Wysocki’s videos, you should check them out, specifically for the spindle. The spindle you have will get you started for sure but a high quality high speed spindle with ceramic bearings will change your life. One with an Power drawbar feature, 1.5kw power, and ceramic bearings is only about 1100 dollars, and with such a machine base as you have it will scream through anything you throw at it. IMO the final step between routers and real milling machines is the quality of a spindle. What you have already done is awesome though, looking forward to seeing it evolve and what it’s fully capable of! On a different note, see if you can pick up some variable flute ZrN coated end mills, they will also change your life for aluminum.

@CalvinoBear

4 жыл бұрын

The spindles come from a company called Jianken.

Nice work! Finally, someone NOT building a router but a proper milling machine! Those are very rare on KZread. Keep it up! P.S. How about a 4th axis? ;)

@ipadize

4 жыл бұрын

do you know END CNC or Talla83?

@erik....

4 жыл бұрын

Well no not really, this i way too small to be a proper milling machine.

@MadHatter123456

4 жыл бұрын

@@erik.... depends on the job. I'd take this over any router without hesitation. I'm currently building a mini-lathe, some time in the future it will be joined by a mini-mill. Why mini? Because it's big enough to machine the parts I need. Size only matters if you need it.

@erik....

4 жыл бұрын

@@MadHatter123456 Sure if you're only machining soft metals with small endmills then a small machine is ok.. But if you want to use a 50mm face cutter in steel for example then you're screwed.

@MadHatter123456

4 жыл бұрын

@@erik.... no shit. Guess what, if I want to move rocks I don't use a shopping cart. Different job, different tool. Saying that one is better than the other, just because it's bigger...

Well done, maybe you can improve further the rigidity of the spindle holder to reduce side flexing, add an extra plate on top? Worth maybe measuring if this is an issue at all. Keep up the inspiring work.

Great build. Thank you for sharing. Are you going to open source the project?

Nice work man. It’s been a long journey your you finally made it. And I like the sound of it. Rigid! Hit me if you need some pointers on how to swiftly learn how to use it.

Nice job

Awesome stuff Joerg. I really like your holding method for the XLR connector. They are a pain to hold on to and solder at the same time. And chips! Your cutting oil looked a little bit thick for the high speed. But video has fooled me before! Thanks for taking us on your journey and for making this video. Now I have a question. Did you use a polymer concrete mix? If so where did you get the mix ratios? I am looking at making a CNC Lathe for some small production work.

Do you plan to share technical drawings or cad files? I want to start a project like this in my garage.

Amazing machine. I sugest you to think about to create aluminum parts for 3d printers and create a virtual store to sell it.

Congrats.

As mentioned before, pretty well done Joerg. Much better then 99 percent of these aluminum extrusion machines. Finding a good sulution for waycovers could save some frustational moments later on - believe me! ;-)

@swolebro

4 жыл бұрын

I've seen cheap window shades used as way covers before. The pull-down roller kind. You might need to tweak the mechanism a bit so it doesn't lock in the "down" position, but then the spring inside always let out just the right amount of cover. Plus they're cheap - good enough for starters, anyway.

@Nealieboyee

4 жыл бұрын

@@swolebro I just made some bellows type covers out of cotton fabric painted with yacht varnish. Works beautifully. Denim/Jeans will work too but folding is tricky for small bellows covers.

@joergbeigang

4 жыл бұрын

@@swolebro that's exactly what I'm looking into. Got some rubber sheets lying around and thought about coiling them on one of those.

@joergbeigang

4 жыл бұрын

@YS TR You'll find some more information here: dangeroustools.com/tag/circular-saw/ I'm still having the CAD files. It's an Inventor project. But I'm not having Inventor at the moment, so I can't review it. But I could send you the whole project if you're willing do deal with a fair amount of chaos and maybe German naming of objects. You'll find my email in the here on youtube in the about section. Send me a mail and I'll send it to you.

@joergbeigang

4 жыл бұрын

@YS TR Let me tell you it's drawbacks first. The saw blade can not be tilted (which isn't an issue for me), and the travel of the table is quite limited (not the best solution for building furniture, good for cutting small pieces of aluminum). In my design some dust protection on the moving part of the table is missing, and I think it's better to mount rails to the moving part and the bearings to the fixed one. Because like this, there is always suport around the saw blade. The last two points I'm planning to change for a while now.

Fantastic job, but overshadowed by using stepper motors, replace them with 600W profile 60 "60ST-M01930" servo motors. Your work deserves this improvement. As for the rest, I can only congratulate you, both for the approach of the machine and for the execution in its manufacture. It has been a pleasure to watch it.

Me gusta mucho lo qué haces, donde puedo aprender a programar servomotor ?

Excellent work ! Very good skills ! I do hope that aluminium frame works for your projects and that you will stay away from milling steel (except for testing it though) ; that is the temptation of anyone who ever built a router out of aluminium. Your desktop machine is much stiffer than a router in terms of rigidity, but when it comes to vibration, aluminium is aluminium either way. Ideally, it would have been desirable to put all that effort, time and money into making a machine out of steel+epoxy. The atomic structure of aluminium remains the same even after it has been paired to epoxy granite; vibration wise, the epoxy has to ''clean up the mess'' that the aluminium makes, and it does that very well. Rigidity must be much better with epoxy than without it, which in theory would allow for bigger cuts, which means the winner of this solution is the roughing operation, provide that time is a factor. The finishing operations will probably take some tweaking to find the right speeds and feeds and navigate among harmonics to get a very good finish; epoxy here is somehow limited into what it can do, as it cannot substitute/filter the direct contact between the aluminium of the Z-axis carriage and the aluminium work. What it can do however is to filter the secondary path/circuit of vibrations that starts at the interaction between the milling bit and the work, and continues all the way up through z-axis carriage-gantry-table. All in all is a winning solution anyway and you have done an amazing job. Not to mention the fun and the learning process. Congrats !

@joergbeigang

4 жыл бұрын

Wow, that's a very precise analysis. Of course I did some tests the last days and I also touched steel. I can say, at least with a 6mm end mill, it doesn't feel quite right - even if result doesn't look that bad. Also the spindle isn't really suitable for that. Just not enough torque at "lower" rpm (6000). But I didn't really had machining steel in mind while built this. I'm more then happy that it worked out like planned. And I really learned a lot while built this and had a pretty good time as well. Now I go on developing a feeling for feeds and speeds.

@mihailfelixdumitresc

4 жыл бұрын

@@joergbeigang You may wish to consider attaching a speed reducer to your spindle. Check this out: www.artcotools.com/nsk-speed-reducer-1-4.html

@markmedrano8073

4 жыл бұрын

I've had good luck using nACo coated endmills for steel. Something around 4mm will want an rpm around 9 - 10k and lets you take a light cut and get a decent finish even in kinda gummy A36. It doesn't compare to a real mill, but for me it was enough to cut all of the mounts and plates for my own gantry router out of steel. With a decently rigid machine I would say it leaves cutting steel with a high speed router spindle about as capable as the cheap Chinese routers are at cutting aluminum.

@mihailfelixdumitresc

4 жыл бұрын

@@markmedrano8073 Agreed. You may tackle steel even with an aluminium frame, but the precision will not be exquisite and it will take a lot of time. But it is possible, I agree.

Impreasive build. I wish I could build a machine near this quality. I would make the table from steel, and use double anti-backlash ballscrew nuts.

just a suggestion, add a cover to cover up the rails and spindle from metal chips

Good evening my friend what is the need for cutting your cnc

Is this machine rigid enough for steel cutting?

What purpose does the epoxy and granite serve than compared to a steel frame or cast metals? Other than it is easy to form with, Will it crack over time?

Flying chips yeah! 👏💪

nice......

Good!

Hast du die CAD Baugruppe und die Einzelteile noch irgendwo abgespeichert und wärst bereit, diese zu veröffentlichen um die Fräse nachzubauen?

@joergbeigang

3 жыл бұрын

Ja, habe noch die Daten. Da sind aber schon ein paar Designfehler in meiner Maschine. Die einfach zu übernehmen wäre nicht so schlau. Ich habe auch mal ein voll parametrisches Modell angefangen, was leider nur so halb stabil ist. Das könntest du haben. Schreib mir eine Mail, die Adresse findest du unter about auf meinem Channel.

The only thing i would add to this, is to actually have a massive table as well. Your tiny top table is not that vibration dampening. But what an insane job

@joergbeigang

4 жыл бұрын

Absolutely. The z assembly made of aluminum isn't satisfying as well. Gonna change that soon.

Very inspiring, will make something similar. A friend of mine worked long time in the aerospace industry as a CNC operator. The edge speed for aluminium need to be quite low, otherwise the alu is prone to stick to the cutting edge. Since your machine is (with a hobbyist meassurment) very sturdy, have you considered replacing the spindle with a constant torque / low RPM for metal? (say maximum 8000rpm) I think the spindle you have now is better suited for woodworking due to the high RPM and low power. I remember my friend told me that omve the machine starts to run heavy, the loads are increasing very quickly (in a exponantial way).

@joergbeigang

4 жыл бұрын

I'm happy you like it. Actually the carbide end mills I'm using can handle a pretty high cutting speed. Up to 8mm diameter it's not a problem (at least not with 5000 aluminum) . The problem is more the low torque of the spindle at "lower" rpm, below let's say 15000 rpm. Therefore I'm thinking for a while now about a solution. Found a video of a guy who used a belt to drive a sk30 spindle with a Chinese hf spindle like I got. That looks really sweet, just not easy to realize. Involves some lathe work, then hardening and finally surface grinding on the lathe. The z assembly i got to change anyway. I'm not really happy with the aluminum construction. I mean I got almost everywhere epoxy granite with good vibration absorbing properties, but at the very point where all the vibrations are being generated I'm using aluminum. Including the t-slot table. So there might be some bigger changes coming at one point. Just gotta find the time...

I notice your BGM in the video is becoming more and more powerful, lol. Anyway, I so glare to see your masterpiece getting better.

@massonmilo5754

3 жыл бұрын

By the way, I want to know where could I buy the same mill motor as yours, thanks.

@joergbeigang

3 жыл бұрын

You're talking about the spindle? It's the standard chinese 2.2kw spindle that is sold by many resellers on ebay and Amazon. It doesn't have much torque on lower rpm and what I've read so far is that it's a bit of a gamble to get a good one

@massonmilo5754

3 жыл бұрын

@@joergbeigang OK I got it.

Nice work, What spindle motor did you use?

@joergbeigang

4 жыл бұрын

I'm using a Chinese 2.2 kw spindle.

Are those branded linear rails and ball screws? Any link?

@joergbeigang

Жыл бұрын

they are Chinese CHTR

@dencio1976

Жыл бұрын

@@joergbeigang Thank you

First chips, very nice! Hope you have some way covers for the next test, it's a bitch to get all those chips out again. Btw. I like to use denatured alcohol as coolant for aluminium, helps to avoid any smearing and sticking and evaporates eventually. It's a good thing to start slowly in the beginning, but I can only imagine what the capabilities of this machine might be. I will definitely stay excited for future videos. Btw. what are those motors, servos or closed loop steppers?

Awesome job! Just a suggestion but your t-slot table plate looks like it may have come from ebay. I bought the same one and quickly realized it's way to thin at the bottom of the t-slots. I measured barely 4 mm aluminum thickness at the bottom of the t-slot. I replaced the ebay plate with some 250x20 t-slot table plate from Techno-Isel. The quality and rigidity are night and day different. The new table is 8 mm at the bottom of the slot. It's expensive but well worth the end result in my opinion. Again, great job on your machine!

@joergbeigang

4 жыл бұрын

Thanks. Was thinking about the t-slot table as well. Thought about putting a 10mm aluminum plate under it.

Tell me what is the mm stroke on X Y Z?

Maybe your first project on this machine can be steel mounting hardware for the spindle. Do you think this machine is capable of making that?

@joergbeigang

4 жыл бұрын

I got no clue. That piece of aluminum in the vid is only test I did so far. All happened this noon. But trying to mill steel is on top of my to do list.

hello, good job I adore, however I have one question, why did you built a so massive Y axis tray ? the lateral efforts of the mill bit on the job don't seems so important that one uses a so big tray (extra rigidity is not really needed here) . if not for rigidity needs, did you use a so big mass of granit to absorb vibrations ?

@joergbeigang

Жыл бұрын

That's because I can't really work with bigger parts of steel (not having the machines for it), and aluminum is a terrible choice concerning vibrations. That's why I made it of mineral cast. I read about a minimal material thickness with mineral cast, and I did not have any experience with this material, so I preferred to stay on the safe side and make it a little more massive.

@gyroplane

Жыл бұрын

@@joergbeigang HI Joerg, thank you very much for your reply, I am designing mine at the time, this is why I am asking questions.. cool that you took the time to reply, I really appreciate

Try to mill steel with this spindle , but u have to keep wery cool , and u can use about 6000 rpm , 4 flute , or u can go higher to 2 flute and 10000 rpm .

Not sure if else where you mentioned 🤔 The total cost of this project. Just wondering if I might do something similar. Thanks enjoying the videos

@joergbeigang

3 жыл бұрын

Hard to tell, didn't really keep too much track on the costs. I guess about 1500 euros. Just a guess ...

Nice build! If you want to have a better finish, hold your tool as deep as it can. Less tools stick out, less chatter; less chatter, better finish.

@joergbeigang

4 жыл бұрын

Thanks. I'll l keep that in mind.

Probably wouldn't hurt to fill that head extension piece with epoxy granite

@joergbeigang

4 жыл бұрын

It's not designed for that. If I'd do so I couldn't dismount the linear bearings anymore. But I thought about filling it half way up with sand. That the bouncing sand particles can dampen the vibrations a bit

@EitriBrokkr

4 жыл бұрын

@@joergbeigang well I'd have a serious word with the design team😁

Hi...very good job, congratulations !, I would like to know what servo motors You used to get 0.001 mm of resolution , Thank You in advace....my namei is Marcos , from Brazil

@joergbeigang

3 жыл бұрын

Late reply, I know, sorry. I'm not having 0.001 resolution. What I tested was the repeatability of a position. Gotta say now, without load a quiet useless test ...

Nice machine. What ratio of aggregate to resin did you use? Did you have a mixture of aggregate or is it just sand?

@joergbeigang

4 жыл бұрын

dry sand, a bit of gravel and about 13% of epoxy. I made some tests before. Those tupperware containers are perfect for that. They come with an draft angle and there is no need for any release agent.

@onemanriflemaker3873

4 жыл бұрын

Joerg Beigang thank you for the reply. I’m thinking of making a cnc lathe from scratch. So your information is most useful. I bet you get zero vibration on the mill you made. Again nice machine, and thanks.

@joergbeigang

4 жыл бұрын

@@onemanriflemaker3873 I wouldn't call it zero vibrations. Low, but not zero. Vibration damping is of course proportional to the mass. I could have made everything a little bigger. But the resonance frequency seems to be pretty low. Which is good for using a hf spindle. For low rpm I'm not so sure.

@onemanriflemaker3873

4 жыл бұрын

Joerg Beigang again thanks for the reply. I have been trying to find the maths that would predict vibration frequency but I haven’t been lucky. Question framing seems to have thwarted my efforts so far. Can I ask another question. You placed re-enforcing plates within the moulds. Was the spacing requirements dome to a formula or was it a question of half way put a “bulk head”? I was also thinking of using a mixture of granite grit and sand.

@joergbeigang

4 жыл бұрын

@@onemanriflemaker3873 I read somewhere some design rules, and there was written to stay minimum one inch away from corners. Don't know if it's true, but it sounded plausible to me. So (mostly) sticked to it. I can't remember where I read this.

hey very nice documented video playlist :) are you industrial mechanic or mechatronic?

@joergbeigang

4 жыл бұрын

Happy you like it. No, I'm just a hobbyist. I work as a consultant for automotive design. So cad and cas are my strong suit, the rest is learning by doing ...

This is amazing! What size rails did you use? Are they the Chinese ones or super high quality ones, if you don't mind me asking? I want to make a machine like this in the future and don't know if the Chinese rails are horrible or not. Keep up the amazing work! 😁

@joergbeigang

4 жыл бұрын

All Chinese parts. These are 20 mm chtr rails.

@setha6096

4 жыл бұрын

@@joergbeigang Thanks!

Hi. Are the rails on steel or aluminum?

@joergbeigang

3 жыл бұрын

Aluminum. Didn't have the tools to work with steel precisely enough

Sounds like a Router being used to cut aluminium. You need to reduce your spindle rpm if you want to cut metal, even aluminium, otherwise you will be using a lot of disposable cutters. Im guessing the vibration will be difficult to get rid of cutting metals, but its going to be a great router on wood or plastic. Kudos for doing battle with wood cutting tools on your aluminium machine components. The weakness in the machine is its routing head with its spindle and bearing arrangement being more suited to high speeds and wood cutting, not metal cutting.

Congratulations nice work. Could you please share your drawings. Thanks.

Wow! Super! Where did you find that spindle? Was it Aliexpress? What is the link?

@joergbeigang

4 жыл бұрын

Standard China spindle. Bought it on ebay from a dealer that shipped from Europe, to avoid potential hassle with the customs

@alexecheverria

4 жыл бұрын

@@joergbeigang It looks bigger than mine, a 500w china spindle. What is the power of yours? I want to search for it in eBay :D

@joergbeigang

4 жыл бұрын

@@alexecheverria 2.2 kw

hellow, i want to by some machine like yours, did you sell it?

@joergbeigang

4 жыл бұрын

No, it's not even completely finished :- )

AAAAAAAHHHHHHHHHHHHHhhhh oh wait the balls are caged ok.

The only weak point i see is the ball screw mounts. They are probably more than strong enough, but compared to the solid aluminium and granite epoxy, those are definitely weak points imo. Amazing job tho, have my envy :)

Wd40 is brilliant for cutting aluminium

@joergbeigang

4 жыл бұрын

Tried that as well. The one I'm using mostly for everything is called rixol 8000. Was getting a small bottle of it for free and it's apparently not getting empty. It's not bad, I just can't stand the smell off it ...

@droneforfun5384

4 жыл бұрын

Ethanol is actually very good

sir axic motor dc or ac ?....

@joergbeigang

4 жыл бұрын

Closed loop stepper

Are you sure you have enough fasteners in your Z axis assembly? Holy shit bro, she is stout. LOL.

As far as way covers goes, Physics Anonymous made a surface grinder ( video of it running kzread.info/dash/bejne/ZJh_zcqKnryulaw.html ) and for their way covers they used some cloth and rollers (timestamp 8:29). Just a suggestion of something I've seen that was simple and easy.

@joergbeigang

4 жыл бұрын

That's a good solution. I just don't want to do it for y in the front, because it would cover the front panel including the emergency stop.

Anyone else wonder how many linear rail block bearings he dumped out on the floor doing that without installing the plastic spacers? Yikes.

And you didn't even use a motorized screwdriver to tighten the bolts! Crank...clank...clank!!! [suggest you shroud the acme gears to avoid sworf contamination or install a vacuum pickup]

"I GOT to learn how to use it"?

@joergbeigang

4 жыл бұрын

My first cnc, in theory I know, but there's no replacement for experience.

Diese Clickbeutel mit genau 17 Schrauben samt u Scheibe, die kommen doch aus der Firma ;)

its weird that you build a pretty bitchin mill but you dont know to use wd-40 as cutting fluid for aluminum

Мля у нас школьник такой конструктор по инструкции собрать может!

2.14 Why repeatedly doing screw fixing.... All viewers knows about screw tightening so mention in sentence that is more than enough

That is not wife friendly ;)

That VFD is very bad. Sorry for saying that, but it's true. It's a copy of a Chinese copy.

interesting but not entertaining