3D PRINTED VERTICAL MACHINING CENTER FROM SCRATCH
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- Опубліковано 24 чер 2024
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I've built a vertical machining centre or what some may call a CNC knee mill. It is mostly built out of 3D printed parts and aluminium profiles. I had to do an insane amount of cuts drills and taps on this build but I think the end result is very much worth it.
Apart from the XYZ movement it has a lifting XY table that allows for very tall parts to fit in the work area and a tilting head to do weird chamfering and slotting jobs. The motors are Nema23 attached to some ball screws and MGN12 linear guides and blocks.
I'm already aware that I should have protected the guides and the ball screws from the chips while milling. I'll try to add some covers in the future.
It is way faster cutting through steel than my previous all metal CNC too so I'm pretty sure it'll come in handy for future projects. As always let me know your thoughts in the comments.
More info about the files for this mill can be found here:
ivanmiranda.com/products/3d-p...
More info on the board I used in the build can be found here:
www.duet3d.com/Duet3Mainboard6HC
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CHAPTERS:
00:00 Lifting table
02:41 XY Axis
04:21 NordVPN
05:29 XY Platform
07:42 Frame
09:00 Z Axis
09:47 Final assembly
11:39 The boring wiring
13:05 Moving and homing
14:12 Testing - Наука та технологія
Make 3D printed CNC knee mill -> Use 3D printed CNC knee mill to make and replace 3D printed parts with CNC metal parts -> 3D Printed Metal CNC mill.
Use metal CNC mill to achieve world domination...
@@ivanmirandawastaken I knew there had to be some hidden purpose behind your insane projects. Now it all starting to make sense.
@@ivanmirandawastaken You're probably going to need some spacers.
@@ivanmirandawastaken 3d printed world domination
@@ivanmirandawastaken ROFL - I love this community :D
Can we just take a moment to appreciate that this man uses a drill for tapping and never breaks the tap? That takes some serious skill.
Blows my mind every time!! Using a Tapmatic in a drill press so its square and I still break taps and its clutched and self-reversing!!
Not that difficult with a spiral cutter and just aluminium. The combination is quite forgiving.
I do it with a drill on ar500 now that's Sketchy
@@kylec71ify Somehow I doubt that. Hardened steel is a pain in the ass to cut. Even with the right tools.
But it's only alu-minimum
Insanely impressive! I don’t think a lot of people appreciate just how incredible your designs are.
Thanks!!
The amount of aluminum extrusion that Ivan goes through is what keeps that industry booming. Keep up the hard work Ivan! This is one of my favorite channels
Ivan just a thought. The number of profiles that you drill and tap, sounds like a new machine is required to automate such procedures👍
Yeh a tapping arm would do that, you could easily make one with aluminium extrusion and a couple of gas struts.
@@zakquddoos4641 A flexarm would only really be useful for drilling and tapping the faces of the extrusion, not the length of the extrusion; though a flexarm isn't that useful in making the process more efficient. A better solution for the lengths would be a horizontal drill/tap setup, where the extrusion is butted against and endstop and a horizontal stop, while using the table for a vertical stop, for placement, with the spindle on a guide and spring for when drilling and tapping; all you'd need to do is rotate the extrusion to dill and tap the next hole, as each predetermined stop will accurately locate the spindle for the next operation. For the repeated drilling along the face perpendicular to the length, a setup on the drill press can be used, all it needs is a pin for the endstop and a second pin that'll also locate the previously drilled hole to setup for the next hole being drilled, as this is a pretty basic operation. The only use a flexarm would actually provide is a preventative for repetitive strain injury from drilling and tapping each hole with a hand drill.
@@xaytana Thank you. That sounds like a plan. What would you use to power the chuck suitable for drilling and them tapping?
cool project Ivan! 🤘😎
Thanks 🙏
I agree.
Very cool project. But you are really losing the hobbyist/tinkerer vibe with the professionalism you achieve.
@@ivanmirandawastaken this is the most entertaining cnc build Ive seen many technical youtubers dont understand the value of music
YES! I've had plans to diy a cnc milling machine for a year or two now and seeing this proves it's possible. Thanks for keeping my dream alive
Yeah!
When the spindle arced to the aluminum plate, you actually built a EDM machine you just didn't know it.
Exactly 😉
@@ivanmirandawastaken Electronic dance music machine? Excellent!!
Electronic direct mail machine?!? Woah!!
Ivan, the entire build montage was fantastic!
it blows my mind that our society is so rich that I can view high precision engineering as entertainment.
Can we all just take a moment to appreciate the tolerances to which Ivan needs to keep for these projects and that he does most of it with a hand drill. Awesome :)
I love the 80s style music in the background! Awesome video!
Man I love this guy’s videos. Its so satisfying to watch stuff come together and his music choice is great to go along with his montages.
This is awesome! However, I will say, as someone who owns an actual 3 axis CNC knee mill, you really should have put the Z axis movent in the knee....while yes, you can move the knee up and down for larger parts, but having such a limited z travel (as I do with an automated quill), it's extremely limiting with respect to cutter length and retract/clearance heights...very annoying....the next thing I do to mine is going to be put a ball screw in the knee, add two gas struts to offset the weight, and cut a hole in the casting to run a belt drive go the top of the screw....
Nice builds but there are many problems that I see with your builds FYI I have been building cnc mills for the past 10 years .
1 it you fill the aluminum extension with epoxy granite that will help with the vibration that will increase The CNC performance .
2 add a support beam at the front of the xy carriage that will make the Bed more flat .
3 Mill the connecting surfaces flat ( where the Linear rail Is mounted )
4 add steel plates in the z axis of the spindles.
5 buy a metal spindles not a wood spindle like you are using the Will improve the tolerance and will last longer.
some supplier: so how many aluminium profiles do you need?
Ivan: YES!
Ivan, I just need to say thank you again for all your awesome videos. I really love how you improved over the past years. You truely mastered your craftsmanship AND video editing. Love your content so much. Everything is just perfect. Thanks!
The amount of work and the montage is out of this world!
I am just upset I never heard "Spacer!" during the entire build.
And he used a hammer AND a mallet.
Your time lapse editing skills are out of this world
You should make an automated tool that can produce these tapped extrusions that you use in every 3D printed project.
And cut them to exact length at right angle
"It was pretty long, it took me more than two weeks to assemble everything". Well, it would probably take me two years, so...
Can we all just take a moment to appreciate the SOUND of those Nema23's as they spool-up into that whirring symphony of CNC magic... Mmmmmm... SO good!
I have watched uncountable projects that involved designing and making tools. This one is my all time favorite. And of course the red PLA is the icing on the cake.
You can save a lot of time if you first make roughing passes with a flat end mill and then move to a ball end mill (with a much faster feed speed). Also end mills are much more efficient at working with their sides, avoid milling downwards at all costs. The surface finishes will be much better, you will be able to use faster feeds, you will significantly reduce the chances of the end mill clogging up (and breaking) plus the tool life will be longer. You made yourself quiet a tool, really interested to see what you will make with it, good luck!
I am in near disbelief that this worked so well. Yours cuts damn near a clean as my iron mill. I'm impressed!
This should be available as a kit. I've been procrastinating about buying a CNC mill for decades.
Damn Ivan, your editing is just getting smoother and smoother!
I think thats gotta be the smallest and cutest CNC mill I’ve ever seen
the one thing that amazes me is how much energy you bring to each video well done keep it up
should really rough out parts before using a ball endmill. Balls can only feed at like 2/3 or less of a square endmill.
It this case I don't think it makes much difference since his frame is not rigid enough to handle the cutting capacity of a typical end mill. He needs to keep his cut depths and feed speeds low to get any accuracy. The aluminium is flexible.
Ivan, this is amazing! You keep evolving yourself and your channel too. I've been subscribed for a while now, and you still manage to amaze me everytime.
I don't have a large workshop, just a small shed, a 3d printer, and ofcourse some spacers!
But you're still a great source of inspiration, keep up the great work! 🤟
Milling and spark erosion at the same time! Cool
Very impressed. I love to see how your skills have improved with each build. This machine is definitely going to be my next project.
A recommendation for bolting down linear rails: they are likely to be much straighter than what you're bolting them to, so rigidly bolting the 2 parts together will warp both parts. Use a stack of Belville washers on each bolt (6 will do, alternating them to face opposite directions) and tighten the bolts up only to the point when the washers are partially compressed; you'll need to use thread lock on the bolts to ensure they don't loosen, but you rails will remain absolutely straight.
Even though you solved the spark problem. You should keep the fire extinguisher around for good luck.
I have three around the table just in case
Impressive! I can’t imagine the project work behind it, great work!
Great video Ivan! The build montage is amazing to watch :)
This is insane! Keep up the good work!
Thanks!
You already incorporated the 4th axis. Love it all. Keep going my friend!
Absolutely professional build quality, and I love your enthusiasm. I also appreciate that you lrave in the "oops"'s.
Wow, that's amazing man!
Such an awesome build! You should try to avoid slotting with your endmills as much as possible, it's horrible for surface finish and chip evacuation/tool life. Also on the hemispheres you could try running a roughing pass with a sharp corner endmill, or one with a small radius. Then come in for a finishing pass with the ball nose.
I would throw a Fog Buster mist cooler on there. You’ll massively improve the machine capabilities. Gotta get some
Chip evacuation
Especially for Al. Chip welding is a big problem for that material.
Very late, but don’t you know it’s a very bad idea to use a coolant mister in a non enclosed machine, coolant is already caustic to your skin. So why would you want to breathe that in
Seriously amazing!
And super glad there's no more sparks😄
It is beautiful. And it is the only meal I've ever seen that you could pick up and put in the trunk of your car. You are amazing Mr Ivan
I cannot lift it by myself though... almost but I'd be gambling my back
Not sure which progresses the most, production value of videos or ridonculousness of projects .. love it!
This is a crazy project & I LOVE IT!
It is a machine. It is art. It is beautiful. Another wonderful job Mr Ivan
Thanks!
Real life iron man..
Thanks for bringing these kind of amazing stuff 🙏👍
WOW Ivan, this is a really crazy build. I have to tip my hat.
Some friendly suggestions:
1. You don't need those monster Steppers, in fact, for what you paid for those, you could have gotten Closed loop Hybrids that hold their position.
2. Rigidity Rigidity Rigidity!!! There's a reason your taking teeny tiny baby cuts on your aluminum (Which is why you really don't need those Monster Steppers). A good project for your new knee mill could be desiging and machining more Aluminum parts to replace your 3D printed parts. I LOVE YOUR DESIGN, but maybe make it a work in progress and show how you stiffin it up and prove it by making deeper cuts.
I watch all your videos and I love how you go big and really make DIY fun. I would just hate for someone to invest and build one of these and realize that they got roughly the same performance as an MPCNC.
I'm very impressed that you can cut steel!
Nice job, I have never thought of making a knee mill!
Great project - amazing what it does using 3d printed parts, now you can cut them properly in aluminium 😊😊😊
You continue to amaze me! Keep up the great work!
Mills don't use a cantilever cross-slide because the table will flex down on the end, they use a jacking screw under the centre of the cross-slide with the post only as a guide.
Nice CNC machine build. Try a slightly smaller ripper bit for rough cuts, then the right size end mill for the finishing pass; that's what I use now and it eats through aluminium even with only a 150W spindle motor and finishes nicely without changing the G-Code. Also, you may want to look at getting a septic tank aeration pump instead of a compressor to blow the chips away, I tried this and it works really well, plus is only just above 30dB and will run continuously for years.
I would love to see this mounted on a proper base (maybe cast concrete? maybe even with attachable dampers?) just to see if it effects part quality or not!
When machining metals rigidity is not enough. The machine needs mass. This is why machine equipment are so heavy and bulky. The quality of the cut is night and day. Great vids and content :)
This is was really innovative. Everyone doing router style but VMC are just better for cutting metal. Really nice.
routers are so overrated!
@@polviaortega3709 i mean makes sense. If you go with aluminum profiles you can not expect crazy precision. The frame is not death flat anyway. So router application fit better. I made a router while back but since I machine mostly aluminium and steel, I have converted a bf20L to CNC, with tons of features. Still hobby machine but much better for my application. A router is really nice for big not tall parts, preferably wood and plastic. If you want one efficient in metal then you need to invest on the frame. Machine aluminium and epoxy granite if possible. Linear rails ecc...
@@Ale_Lab Thats what I meant. Routers are cheap and easy to manufacture but what really gets the job done, specially in metalworking, is the VMC. I would love to se more DIY and hobby VMCs instead of routers.
@@polviaortega3709 me too. I have converted two small VMC so far. Use one daily and it's really nice
IMPRESSIVE work, congratulations man!
What a monster build.
Great build video and good demonstrations too.
Love it 👍
Ivan, fantastic video as always. As a machinist and engineer, as soon as I saw the spark on the aluminum I thought 'Oh something shorted....' I can't believe that spindle isn't grounded though. Not sure I would be comfortable using that in the long run but your addition of a grounding wire is certainly a good improvement!
Absolutely brilliant. Really impressive. I’m sure this old Tony himself would like this too. 😃👍
Fantastic work, Ivan! Really amazing machine! 😃
Stay safe there with your family! 🖖😊
Now THIS is a 3d printed mill!
Excellent music choices, makes watching your videos even better! :D
Wow! Dedication! Thanks for sharing this wonderful project!
Build once, tram forever!
True
2022 and stil making amazing projects!! continue to inspire bro! your projects are awesome.
Beautiful and very interesting project... Congratulations for the result, it's beautiful!
You always upload when I am on holiday:)
We need "Finally - no sparks!" on T-shirts!!!
You definetly earned a sub here, also with giant 3D printed stuff! Awesome man
Nice JOB. You make it look so easy... =D Glad you got into other materials besides plastics. Thx for sharing all this on youtube. I spent weeks shimming up my lathe headstock to get it to run true... Anyways, the editing is amazing. Keep up the good work.
Great design!
Thanks man!
It is so bad
Ivan you are crazy and i love it! I don’t know if all this came from inside you head but it is amazing!
This is absolutely awesome. Thank you for sharing this.
With That Knee CNC Mill you can easily swap out the parts that cause the instabilities you experienced or make new machines with stronger or truer 90 degree angles easily. That is a really good project, All I need is a heavy duty chop and mitre saw to do that and schematics
wow. i didn't expect it this big. nice
Wow! I'm amazed that a machine made from aluminium extrusions and 3d printed parts can actually mill steel. That's incredible.
OMG, the machine that you make are insane! Love it
Cool. Interesting combination of plastic and profiles.
Awesome project! Would love see this mill create the 3D printed parts out of metal!!
Red and black
That's perfect!!!
Ivan your an absolute weapon!! I love your builds. As a CNC machinist myself I really appreciate what you do and live your antics. You keep saying your machining skills need work. May I suggest the following:
Instead of IPA use a petroleum jelly or kerosene as a cutting lubricant for Aluminium (it's what we use in industry)
When setting your toolpaths try to do it in such a way that you maintain a constant chip load as this will give you good performance from your cutting tools.
If the material is fraying like it is, it's because the speed is to high and it is cold welding the chips back onto your workpiece as the tool is bringing the chips back around. Imagine metal cutting as more of a sheering than a cutting action, like scraping a knife along a block of butter rather than slicing straight down through it.
You are essentially trying to force the material apart, the softer the metal the gummier and less likely to separate it is, excluding self lubricating materials such as bronzes and brasses.
Have a look at the Vm data on your cutters and they will have operating ranges for speeds and feeds, going below is just as bad as going above. Look at your tool and see what it is telling you. Chipping means too high a chip load, a built up edge on your tool means to fast or the wrong coolant/lubricant, carbide tooling when it's sharp has a dull edge feel, when it feels sharp it's dull.
Generally when cutting dry I reduce the speeds and feeds by about 50% to prevent problems. For demo prices and trial cuts use a free cutting brass as it almost never clogs the tooling.
Ok hope this helps a little. Keep up the outstanding work!!
oh i have to sit down for this :) lets see what the mad scientist made this time :)
I appreciate your true and total transparency of your design process. Any other UA-camr would use the power of editing to completely eliminate any errors made along the journey. Especially with the electrical issue, it would have been so easy to not show the grounding and wiring issue, and cut out the bad test cuts and said "hey look, first cut cane out perfect!" Bravo, for staying grounded in reality.
Congratulations! This project beats them all 👏
This really cool. It would be even cooler if you used this machine to machine more ridged parts to replace the original ones. I think this would end up being a great video series and the results could be a stronger machine with higher tolerance capabilities. “The machine that made itself better”. Cheers for the video again
look at 16:16 the washer is moving,amazing thing to build wow loving it so much
The spark of creativity
Amazing project and amazing video !
Love you channel man! You inspire me to improve my skills so I can build cool stuff too!
Another crasy project.... Good job Ivan 👍
Sweet project, now add a motorized axis for the tilting and this thing gets even more cool 😎
Dude, I thought the same thing when I saw that. I hope he does😳
That was my first thought when I saw him tilt the head. "Just add a ball screw and a motor and you get a fourth axis". But then I thought about it. Can the CAD software make use of that functionality? When reading up on CNC mills the fourth axis is always referred to as the A-axis, and is defined as having the workpiece rotating around the X-axis. I seems it would take a lot of tinkering to make the controller and cad software understand what to do with a fourth axis that tilts the head and has quite limited movement.
Ivan Miranda is my mechanical hero
Great build, also there is loose screw on Z at 15:34 - you can see the washer dancing :-)
Good eye!
I missed the screw, but at 18:35 the plastic plate the Z ball screw is attached to has a nice flex moment when presumably homing. I feel like I should check all of the XX:33s and XX:36s to see if there is a series.
You are very creative Ivan, all this did not happen overnight.
this is a really good engineered CNC Mill!
I have been with you from the start.! You are a absolute monster!! What a master craftsman you are 💪😎
Thanks a lot!! Cheers Brian!!
If you plan on doing a lot of cutting, build an enclosure and use flood coolant instead of just spray. It will give you a much nicer surface and allow you to speed up the process. Not to mention that flooding will wash away the metal chips so they are all in one place for easy clean-up!
Also the bottom right spindle bolt is not tight, you can see the washer spin freely there in the video.