A DIY Mill-Turn
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- čas přidán 27. 07. 2024
- This is the presentation of my self build Mill-Turn. The Machine was built in the kitchen of my apartment..
00:00 Intro
01:19 SpecSheet
01:46 Base Construction
02:47 Portal Construstion
03:31 Door Construction
04:24 Main Spindle
05:36 Roughing Steel Demo
07:07 Tapping
07:34 HSK-Toolchange
08:07 Turning Tools
09:12 Turning Setup
10:05 Turning Demo
11:17 My Jaw Chucks
11:40 Turning Devices
12:53 Controlling the Machine
20:02 Electrical Cabinet
20:45 Controller Unit
21:52 Outro - Věda a technologie
Of course, you can only give a very superficial introduction to a machine like this in such a short video. So if you would like to know anything else, or just need some information, please let me know.
Have you measured the roundness deviation you can achieve when milling a circle? I would generally be interested in the precision and accuracy your machine is able to achieve! :)
hey awesome machine, and quite a bit better desinged than my 5-ax mill......but id like to know how much you spent ? id guess somewhere in the 8-12k range
@@Basement_CNC
Thank you :)
I honestly don't know what I spent on all the parts and raw material. 8K maybe, but probably a little less...
@@JohnWilliams-qk4ik
Unfortunately, my linear ball screws are not preloaded and are of simple quality (T7). The result here would certainly only be moderately good..
@@9voltprojects thats honestly less than expected 😮
i also spenk 4.5k on my mill, and the quality of most parts is "aliexpress "😂 cant afford more at 19
If you said you're a toolmaker you could've fooled me :) Very impressive build and design! And wrote your own firmware for it too! Truly a one of a kind machine.
..just a hobbyist with skilled hands :)
Thank you!
Please make a video of how you build the spindles :) I am sure everybody wants to see the process!!! Thanks
ne uno a la idea , seria genial ver el proceso
yeah many videos about cnc ways, but i've never seen one about a self made spindle.
Yes!! The HSK spindle is definitely the most interesting part of the machine.
Die Maschine ist unglaublich beeindruckend. Ich hätte ja erwartet, dass du gekaufte Controller verbaut hast, aber als ich gehört hab, dass du auch den selber gebaut hast (inklusive Firmware!!!), war ich sprachlos. Das ganze Projekt ist einfach ein Meisterwerk. Das System, welches Drehmeißel und die Frässpindel auf der gleichen Führung kombiniert, ist der Hammer.
Vielen Dank, freut mich das Dir meine Konstruktion gefällt :)
Da ich keinen weiteren Platz für eine Drehmaschine hatte, musste ich halt erfinderisch sein. Elektronik mache ich quasi seit ich laufen kann, deshalb auch der Eigenbau des Controllers.
Very impressive!
I always said the electronics guys make the best mechanical engineers... 😎👍
:) :) :)
my jaws dropped to the other side of the earth when I knew the spindle is self made, I really hope to see how did you do this amazing achievement
Thanks ;-) Unfortunately, I don't have any video footage of the spindles being built. I'll see if I can find some pictures, then I could try to make a "short" out of it.
@@9voltprojects that would be pretty cool, i'll be waiting for the notification
This is very well done, better than many professionally built small machines.
What a nice compliment :-) Thank you very much!
Wow 😮
Ich arbeite bei einem großen Hersteller der Mill-Turn Maschinen herstellt. Dort im Außendienst tätig und finde die Erklärungen und was Du da gebaut hast echt klasse 👍🏼
Weiter so!
Ich dank Dir :-)
This machine is really a Masterpiece. I hope you can make more Vids about it. Especially i am interested in how you made the two Spindles with the Servo Motors, and the hight adjustment of the Linear-Rails.
It's on my to-do list.. Many thanks :)
Incredible! I've been scouring youtube looking for home made mill turns or swiss type lathes. This is pretty much identical to what I want to build. Strong work.
Thank you very much! I hope I was able to give you a few ideas along the way. :-)
That's a nice build. I'm actually happy to see that more people use a similar trick as I do for lathing... I basically just mount it right next to the spindle as well. I've had trouble with stainless steel and don't have a good solution for boring yet, but other than that it seems to work quite well.
I'd add a proper flood coolant personally. My experience with milling steel and alu is that you can't throw enough fluid on it (and I do a lot of alu). Not only will that wash away the splinters, but it will also help significantly with the life of your tools. Like me, you put the electronics below the cnc - and like me you're probably going to regret that eventually if you flood the thing.
I threw the whole cnc in a steel cabinet. There's acoustic foam on the market that does wonders for the neighborhood. Plus, if you do it right, the cabinet can be used to add some more rigidity to the whole thing.
But that's just details; great job! I was wondering about the spindle here... did you design and lathe the HSK spindle by yourself or buy an off the shelves HSK adapter? From the single screw it might seem viable to use a stepper to torque it down? I dunno, it's hard to see without a design, but I'd like to see more about that.
I also like how you used set screws solution for the rails. I'm not sure if it's better than lapping the rails upside down in a vise, but it seems pretty viable. Did you make all of these yourself?
Bonjour, bravo pour votre machine, une véritable bête !
Outstanding work, on both the video and the machine,
Thank you so much :-)
That machine is magnificent! Really spectacular! I'd love to build something similar in the future. Good job and thanks for sharing! :)
Thank you so much :)
Excellent build! We shared this video on our homemade tool forum last week 😎
Thank you, I am very honored :-)
Very nice machine, well done. Interesting design with moving the complete portal as Z axis. I don't see this often in diy machines.
Thank you :-) I've never really understood why so many hobby builders usually build it the other way around. Ok, there is more mass to move, but it is much stiffer and easier to build
@@9voltprojects True, depends a little bit on the aspect ratio of the machine and if it is a traveling gantry or bed but for your machine it looks very fitting.
Great work, thanks for sharing!
Amazing dude, way to go!
Wow, great job all around on the machine and the video! The extra carriages you slide onto the X rails for turbing work is a clever solution. I would love to see a video on the mill spindle design.
Thank you very much. I may build a new spindle at the end of the year. Of course I will make a video of it ;-)
Very clean build. Nice one
Thank You.
Nice work
Nice work! Really a good mechanical design! 👍
Thank you :)
Hallo, Watch all your films. Love it and hope to see more from you ... Very clever what you have made . Profi made ....
Thank you!
That's incredibly impressive.
Thank you very much :-)
Sehr beeindruckend Chris!
Vielen lieben Dank!
GBWM sent me. Awesome content man, very nice build.
Thank you a lot :-)
Absolutely amazing. I hope one day you can put up the cad, wiring and programming diagram up for sale!
That would be too much stress for me to do business with. I only do it for the joy of doing it :)
Thank you very much..
Hola, gran proyecto! ejecución impecable. Felicitaciones
Muchas Gracias
Vraiment impressionant tres beau boulot felicitation🙏👌
merci beaucoup
wow! super impressive machine! thanks for sharing & weiter so! :)
Danke :)
looks good brotha
Thank you :)
Sehr geil
Danke :-)
Очень аккуратно сделанный станок!
Большое спасибо.
カッコえぇえ！！！
ありがとうございました。;-)
What do you feel is the advantage, or disadvantages, of having the Z axis rails on the support pillars (also supporting the X axis)? Your Z stepper will have to do more work, the X steppers less, compared to a typical CNC router. At first I thought this was a CNC router but when looking at the details I said, no this is a mill. A very interesting design.
In my view, the advantages of this design outweigh the disadvantages. The decisive reason for me is the higher rigidity due to the better lever ratios. The lower the working height, the stiffer the working conditions. Of course, the Z-Stepper has to move the entire weight (50 kg). But this is also an advantage because the z-axis is always preloaded. Only the dynnamics is affected by this, of course.
@@9voltprojects
What's your rapid- and acceleration settings if I may ask?
The rapid speed is 2m/min!
Unfortunately, I don't know the actual acceleration values. The acceleration ramps are generated in the FPGA by up/down counters preloaded with values. These values then determine the steepness of the acceleration ramps. I then tested different steep ramps in experiments, so that step losses are excluded. But I have never calculated the resulting acceleration values. Thank you for your question! :)
Great job!! Are you planning to open source the project or sell the CAD files and BOM for DIY?
Thank you..
I think anyone with good metalworking skills doesn't need a construction plan or CAD files from me. I've also just copied most of the things from the big boys in the business.
Less experienced hobbyists I would advise to start with a smaller project.
just Wow
A well executed project! Very impressive that you created all custom electronics (with an FPGA) and wrote all the embedded software.
One suggestion regarding terminology is that 'Borders' could probably be replaced 'Boundaries', if you ever plan to open source or share your firmware. But of course, whatever conveys the information works for a personal project 😂
I had been looking for the right term while programming. I had thought about fences and borders, but both felt wrong somehow. Yep, boundaries ;-) A bit too long for my display, but let's see... Thank you very much!
@@9voltprojects Even 'Bounds' & 'Left /Right Bound' might suffice ;-)
Have you considered selling kits for this? I'd love to buy the frame-set and spindle myself. Fantastic work! Subscribed
Sorry, I don't offer kits. I only do it as a hobby.
Thank you very much!
Understood. Have you considered sharing your designs either commercially or under a creative commons license or alternative open source license? I believe your machine would be liked by many others who might improve upon your design and share those improvements as well.
Geile Maschine
Dank Dir!
Amazing! May I know which Gühring part you used for the HSK-C clamping? Also what kind of bearings did you use for the spindle?
The spindle bearings are from FAG. I still have to look up all the part numbers. I'll do that together in a future video about building another spindle.
A great Machine! Thanks for sharing with us
I'm interested in more Details about the Spindle design especially bearings, Servodrive and tool change .
Is there any sensor to measure your turning tools or is it manual measure offset like turning by hand ? How do you set the height offset for the turning tool? Have you thought about using a multi fix tool change system for quick change the turning tools?
Thanks 👍 👍 👍
Thank you!
I do not use a sensor for tool measurement when turning. I do it like this: After the first machining pass, I zero the displayed position of the Z-axis. Then I measure the diameter of the workpiece with the micrometer. I then enter the radius as the Z position in my control unit. I can work very precisely this way. Additional measuring sensors would tend to interfere with my workflow. I may be a bit old school in this respect, but I like it that way.
Thanks
I have some more questions 😄
How do you manufacturing all the parts? With your old machine or on an industrial CNC ?
How much time and money did you spend?
Unfortunately, I do not have access to industrial machines. All parts were made on the machine in the intro. Later I made or optimized some parts on my current machine.
😍
Could you release CAD and way you made adjustments for leveling and straightening everything for this masterpiece?!
You do not need a CAD file for the leveling plates/blocks. They consist of 40x30x10mm steel and an m8 leveling screw in each corner. There is a through hole in the middle of the plate for the rail screw. And that's it. The challenge is to get them all at exactly the same height. For this you need a reference, e.g. a granite ruler or something and a very good dial indicator. It took me a week to get it right, so be warned.
The clamps to straighten the rails are very specific to my machine. I don't have a CAD file of them, I made them right out of my head. The rails of my X and Z axis I also straightened with other tools, but that would have been too much for the video. Just build something to bring the force to the point of highest deviation. I was surprised at how easy it is to straighten them.
I noticed for X axis you did not have leveling plate, have you grounded base? Also with leveling plates you need to level everything together, as without central bolt and rail they won’t stay?
I used double-grinded precision steel plates from Meusburger for the bridge of the X-axis and the machine table. That's why I didn't make any further adjustments to the X-axis.
no tienes instagram ,estaría genial ver tus ideas mas cotidianamente , me salio de pura casualidad tu canal y desde hoy me uno a tus seguidores
Hi! Yoa have overheated endmill when you cutting the steel. You need cooling!
Yes, you're right. This cutter should be cooled ;-)
I wonder if you can find some hsk holders that will hold turning tools, if you can lock the mill spindle you could use it for turning.
Yes, that would give me some extra space. But the spindle shaft would have to be able to be fixed absolutely rigidly at the spindle nose. I had no idea how to implement this without making the spindle even bigger and heavier.
@@9voltprojects if it's not achievable electronically with the motor or a brake on the motor then maybe a mechanical pin or an electromagnetic brake/clamp mechanism that engages/clamps into/on the drive pulley of the spindle . There are some limitations to the belted drive rather than direct but a guy with your talents will be able to engineer around it.
@@weldchip
Unfortunately, this is not possible with a brake alone. The resulting forces must be kept away from the spindle bearings. Unfortunately, this makes such spindles very large and heavy (DMG, Mazak etc.)
Please tell us you have plans for this beauty!
No big plans so far.. I mainly use this machine to make spare parts or to improve appliances for everyday use. Apart from that, the beauty always looks at me when I walk into my kitchen ;-)
good evening and congratulations for your design work, your ideas are excellent, but what is the type of your spindle with the tool changing system ?
Thank you!
All spindles were designed and built by me. The HSK tool change interface is from Gühring.
@@9voltprojects thanks you my friend
Wow great job! Did you make your spindle by your self?
Thank you and yes, both were built on my machine in the video
@@9voltprojects Did you have a grinding process? What is the runout, and what rpm are they capable of? I really appreciate what you have done!
Awesome realisation. I'm surprise you can have that kind of precision with only aluminium frame without vibration. I just wandering what is the need to add additional slider for turning instead of having tool directly attached to the side of the milling spindle. I'm sure there is a reason but I'm only an electronics engineer who love to go outside its confort zone : ).
I was not aware also that you can rigid taping with mach 3 contrôler. Anyway the result is quite amazing
Thank you, I do tapping with my own self build controller ;-)
@@9voltprojects I've seen that and what a side project !! I'm an electronics engineer, and I know what It's like to design stuff that works. (I don't like those FPGA they don't open their minds to debugging easily)
I don't know why I fell in love with CNC and metal work, getting outside my comfort zone.
I'm in the process of building my second CNC. The first one was crappy little thing more like of a router. I don't want to spend too much time on controller so centroid acornsix will be the way.
I was in gantry design with some epoxy granite but after seing your design, I will go your way.
What I love is that the whole Y-axis is moving. It's easily understandable that it will be far more stiff when you machine low-height parts compared to those long plate that overhang.
One thing that I don't understand. The Z ballscrew attachment...Where is that low end fixing block ?
It looks like their is no and that's a really floating side.
The only drawback is the protection of the X rails and ballscrew that will be a little more tricky
Design spindle is also very nice; maybe this is the part that impressed me the most. It solve one of my issues. Having a strong tool changer without using compressed air (I don't need an ATC).
But as I'm not confident enough to try to build a part like that, I'll buy a small and silent compressor, and a Jianken 5.5kw permanent magnet rotor with 3.5Nm with BT30..
I've also see you mixed aluminium and steel to keep it reasonably not too heavy. Is there some point of attention I need to take into account about different thermal expansion between steel and aluminium (for Z lineay rail fixing) or we don't really care ?
@@UPR91 Correct, you should think/care about all the physical relationships when building a machine, including the temperature range and the behavior when using different materials. The higher your requirements in terms of accuracy, the greater the effort. In other words, the greater the temperature fluctuations (day/night) at the installation site, the greater the deviations.
Ball screw spindles do not necessarily have to have a floating bearing. It depends on their length.
@@9voltprojects Thx for the answers. I still have a question as I move forward in the design. How did you square the vertical assembly to the base ? I see some pin to perform an accurate angular the link. Does it fit 90° by precision machining or you squared it and drill after ?
Dit you glue the surface with some kind of epoxy before assembly making the whole stuff more rigid but loosing the possibility to further adjustment of dissassembly ?
6:41 Is that a Garant 203014? Those are pretty good we also use a lot of them
Correct - Unbelievable ;-) Here in 8mm, they cut very nicely..
Wo liegst du preislich bei der Maschine?
Ich habe die Ausgaben nie erfasst, besser nicht ;-)
its cutting steel better than my 800kg manual milling machine :D
In the demo, this was also only an 8 mm end mill. And admittedly, the steel was not that hard/strong (C45) ;-) Thank you!
My mill is 50yo, really abused and screams for restoration. Chatter like hell and brake or chip endmils at every possible chance she have 😅
looks like your maschine is the yellow from the egg
:)
What a great and unique machine!
I'm very impressed by the machining capabilities in steel.
In fact, that's really what I'm aiming for in my own build.
Knowing the stiffness of your machine would help me define my stiffness target.
Could you share some stiffness measurements?
Here's a measurement method: czcams.com/video/waFkpSWkctc/video.html
I'd also like to perform an FEA analysis on the frame of your machine.
This would enable a comparison between the real world and the simulation.
Do you mind sharing your 3D model?
Congratulations on your build!
Thank you a lot :-)
Please don't be angry with me... I myself have never paid much attention to such tests. Choose all cross sections as large as possible and keep all levers short. That was the approach I took to my own design.
@@9voltprojects You're welcome, the attention to details really shows, keep it up !
I also understand your design principles. Thanks for letting me know.
Unfortunately, I myself cannot follow this design approach blindly :/
In fact, I do have a limited weight envelope.
Thus, the design of my machine needs to be as efficient as possible.
I'm aiming for a high stiffness to weight ratio.
That's where FEA analysis can be so useful.
In a few minutes, I can roughtly predict how stiff the machine will be.
Because a stiff machine is a capable machine, comparing my results to the stiffness measured on existing machines allows me to better understand the machining capabilities I can expect.
My home cannot hold a heavy machine and I need a stiff and capable cnc.
That's really why I was hoping to get some stiffness measurements by doing an FEA analysis on your 3D model :')
Yes, I understand what you mean and I agree with you. Designing a machine is always a game of compromises and a simulation can be helpful. My CAD can also do FEA simulation but I didn't use it for my machine. Yes, a different approach. You'll get there! Make sure your runner blocks have a high preload class. That can make a difference. Good success..
@@9voltprojects Oh that's right, thanks again 🙂
Nice chips for 1kW
Thank you!
🦾🦾🦾🦾
Do you have a instgram account ??? Thanks
..not yet on insta
@@9voltprojects I love your milling/ lathe machine this is what i like to built also. It is so clever how you combinate things. How can i contact you ?? Thank you for reply