DIY FAST cnc automatic 8 position turret tool changer and how it works explained

In this video I add improvements to my previous tool changer, I change the locking springs and add a system that allows me to know if the changer shaft is able to rotate.
- uncoupling force: 3270N
- Swing motor: brushless AC 100w
- controller board: dynomotion-Kflop
- hirth couplings: Z48 diameter 100mm from tedisa-hirth

[@franciscojavierg.6001]

Super bien explicado, y ademas al verlo, mejor se entiende. Muchas gracias por compartir

[@tessenCNC]

gracias, explicar... no es mi fuerte pero bueno, ahí esta, pongo primero la parte mas llamativa, que el resto para el que no le interese, es aburrido

[@aliabiary178]

The pictures were clear and the description was good. Thanks.. Las imágenes eran claras y la descripción era buena. Gracias

[@tessenCNC]

thanks for your interest and comment, I have several videos showing the rest of the lathe, what I don't have lately is time.

[@AndresAlgeciras]

Como siempre una gozada ver tus videos y tus montajes. Saludos y un abrazo.

[@tessenCNC]

Andres! muy buenas hombre! jeje, gracias, la verdad es que no me siento cómodo explicando, pero se medio entiende, otro abrazo de vuelta, cuídate!

[@TrPrecisionMachining]

Una autentica pasada de cambiador herramientas..asi es como debe ser..y no los inventos de dudosa reputacion que se ven por ay..un saludo y mucha salud

[@tessenCNC]

Muchas gracias Michel 👍🏻👍🏻, es prácticamente el mismo que tenia antes, solo que conforme voy aprendiendo, voy afinando y esta mejora, la necesitaba, en cuanto termine algunos detalles que me quedan pendientes hare un video del resto de la maquina, otro de vuelta y cuídate!

[@isavega6838]

Un trabajo impresionante,gracias por compartirlo

[@tessenCNC]

muchas gracias Isa, me alegro que te guste 👍🏻

[@gonzalezpineiro]

Buen diseño, buena realización y bien explicado. Una felicitación a todos los participantes del proyecto !!

[@tessenCNC]

muchas gracias Hugo 👍🏻

[@marianodiaz461]

Muy bien explicado! Y muy bien fabricado! 10+

[@tessenCNC]

muchas gracias Mariano, creo que funciona mejor que yo explico jeje 👍🏻

[@taranson3057]

This is a great idea, very impressive piece of equipment. Almost looks like a clutch system based on a motorcycle clutch.

[@tessenCNC]

thank you very much, I don't know much about motorbikes, but in general, clutches work more by a friction locking between parts, this is more like an interlocking, the stop position at each station, has to be always the same, so as not to affect the machining.

[@JuCaFeGa]

Vaya, q alegría encontrar este video y este canal (al q me suscribo). Coincidimos en Málaga hace unos años. Un diseño y ejecución espectacular, enhorabuena y gracias por compartir.

[@tessenCNC]

😄😄 Hola Juan Carlos! :o) pues gracias y bienvenido al canal!, aquí seguimos poco a poco, cacharreando cuando me dejan, saludos cordiales

[@mezamedinaandrea9914]

Excelente trabajo. Saludos.

[@tessenCNC]

muchas gracias

[@franmarin3040]

Qué gozada es ver trabajar ese torno en directo. Ya anteriormente IVA de fabula ahora con la mejora ya ni te cuento.

[@tessenCNC]

Muchas gracias Fran 👍🏻, he hecho muchos cambios, el cambiador es solo "la punta del iceberg" jeje a ver si lo termino y hago un video de presentación 👋🏻

[@albertotrevino9594]

gracias por compartir no tenia idea de como era el mecanismo, este sera uno de mis siguientes proyectos !

[@tessenCNC]

gracias, me alegro que te guste, hay varias maneras de hacerlo y varios tipos de acoplamientos, esta gama de acoplamientos en concreto, son muy precisos, están pensados para este tipo de aplicaciones, saludos

[@albertotrevino9594]

@@tessenCNC de hecho yo hice mi Centro de maquinado con concreto y asi pienso realizar el torno cnc checa mi canal @controlCNCmexico

[@pierke110]

Wawh, what a nice explenation..good teacher.

[@tessenCNC]

thank you very much Pierre, "a restless pupil" in any case :o) I'm not used to talk about what I do, I just show what I do, I still have a long way to go to become a teacher of something.

[@RoboCNCnl]

Amazing work !

[@tessenCNC]

thank you very much for your words, it is a lot of time invested in these projects 👍🏻👍🏻

[@dfcz7772]

El numero Uno !!!!!

[@tessenCNC]

muchas gracias, hago lo que puedo, pero siempre hay alguien por encima 👍🏻

[@johnmcnamara3719]

Greetings from Australia This is a beautifully designed tool turret. Wonderful work and an excellent video production easy to understand. I am half way to making a turret also in CAD first. You design has inspired me. The Hirth coupling I guess is the biggest hurdle at 600 Euro it is a lot for a DIY maker. I wonder if this would work? Replace the Hirth rings with two similar size to the Hirth coupling rings, with two rings that have a circular array of of holes that are joined by a circular array of array of matching ball bearings. I have drawn this up and I think I can get it to work. The balls need to be slightly bigger than the holes in the disks. They also need to be retained to one of the disks. Using balls and holes instead of teeth still enables the error averaging that is the real key to the accuracy of a Hirth coupling. An array of holes in a disk is fairly easy to make for a DIY machinist. I made the disks 10mm thick 10mm holes.

[@tessenCNC]

Hi, I'm glad you like it, thank you for your words. The coupling, you can do it, yes, but it is not as simple as it seems, it is not only that the holes of the plate match in one position, but must match in all positions, without moving the plates or axially or radially, if you have access to industrial cnc machinery you can do it, apart these discs must withstand the load of the tool without moving. Hirth discs are so expensive because they ensure all this, they are hardened and ground.

[@pierke110]

That's working nice and Fast

[@tessenCNC]

Hi Pierre!, thank you very much for your words 👍🏻👍🏻

[@seimela]

awesome works

[@tessenCNC]

thanks a lot :o)

[@gerrit2107]

Thanks for the video :) im looking into building something simmilar for my lathe project

[@tessenCNC]

thanks to you for commenting, the truth is that an automatic tool changer, whatever type it is, is very useful for a cnc lathe.

[@gerrit2107]

@@tessenCNC what is the gear ratio between the servo and the turret face?

[@tessenCNC]

@@gerrit2107 Hi, 1:14 aprox I add a link to a worklog foro.metalaficion.com/index.php?topic=7845.0

[@dilansandeepa1956]

❤️❤️❤️

[@necmiaycicek5448]

👏👏👏🙏

[@dieterfreind6979]

I'm the designer of this tool changer and I'm always happy when someone replicates my ideas. I like your improvements too! Very good !

[@tessenCNC]

Hi Dieter, I'm glad you like it, there are several versions of this changer, I specifically used as a base this one -dl.dropbox.com/u/1019949/revolver-komplett.zip- (which unfortunately, does not appear as available) and is quite modified by my friend Florencio (xalaix) and by me in the last instance, I mention it in my worklog (www.foromaquinas.com/showthread.php?13574-torno-CNC), but I don't know who the author is, if it is yours, congratulations.

[@dieterfreind6979]

@@tessenCNC Yes, this one is from me. That's about 20 years ago when I constructed it ;-)

[@BillGriggs]

@@dieterfreind6979 Hello Dieter, Is there a drawing or plan that can be downloaded? This is an amazing project.

[@dieterfreind6979]

@@BillGriggs Hello Bill, unfortunately I didn't upload anything and I don't know how to do it either. I have the drawings here as a PDF and could send them to you, but how? any ideas?

[@milansimko3501]

hello! I am curious about electrical schema, or about breakboard for motor control. Thank You!

[@tessenCNC]

Hello! I do not have a scheme as such, I have an excel sheet where I write down where each cable goes, the control board of the motors is the Kflop of the company Dynomotion, it is a fully programmable FPGA type, depending on the configuration you load this can be a lathe or a washing machine 😄 I use this board for all my machines, I leave a link for you to see "the wiring" actually outputs are outputs and inputs and can be configured --> dynomotion.com/Help/SchematicsKFLOP/ConnectorsKFLOP.htm

[@max_eley]

Excellent work!, is there any cad for this, i would be interested to see how the die springs work.

[@tessenCNC]

Hi, thank you very much, I can't provide you with the cad, but I leave you the data, it uses 8 springs (ISO10243 B13-032) precompressed 9mm and with an effective stroke of 3.5mm.

[@gerhardgroenewald6560]

Excellent work! It looks very rigid.. I'm curious to know why didn't you use pneumatics for clamping force?

[@tessenCNC]

Hi, thanks, because the turret cannot rely on air to maintain position, if there is a problem in the pneumatic line and pressure is lost, it can be unsafe. On the other hand, while the lathe is cutting part of the cutting force is used to close the two hirth discs and this force is added to the force of the springs, just turning from the chuck outwards, the springs do all the clamping force.

[@gerhardgroenewald6560]

@@tessenCNC ahh... I had an idea that was the reason. What do you think about putting a pressure sensor on the piston if you were using it for clamping. AS soon as it picks up a pressure drop it activates estop. Would that be possible in mach macro and what do you think about that idea? Im building a turret soon and cant make up my mind. Your video already helped alot.Any futher advice would be much appreciated. Anything you would do different with you turret design? How is your bronze bearings holding up? Look like you did a slow oil quench to the tool holder?

[@tessenCNC]

@@gerhardgroenewald6560 - yes, there are a few ways to do things, if you put any kind of pneumatic control system to control the state of the clamp, it will work, in this video I do it the other way around, with the switch I am controlling that the tool holder can rotate - bronze bearings only support the shaft, they do not fix the shaft position, because hirth couplings are self-centering. - the tool holder has a bluing treatment to avoid oxidation, it is a chemical bluing, it is not by heating and putting the piece in oil. - I am very happy with the tool changer, everything can be improved, but I don't see any major defect to correct. I have pending to make a video demonstration, not only of the tool changer, but of all the functions that I have added to the lathe, but I still have other things to do.

[@B.E]

¿Hola Qué pasa? Soy nuevo en su canal, vine a ustedes después de que estaba buscando hacer una TORRETA porque quiero hacer un proyecto como este, por falta de tiempo quería ir por algo listo y lo más cercano a lo real, Llevo 15 años trabajando en CNC y su TORRETA es la mejor que he encontrado en KZbin. ¿Es posible conseguir los modelos de tu TORRET?

[@tessenCNC]

Hola, gracias por los cumplidos, me alegro que le guste el proyecto, por ahora no me planteo publicar los planos, pero avisaría si cambiase de parecer, saludos cordiales

[@user-sc7qc6il3p]

السلام عليكم اخى العزيز هذا الڤديو الرائع هل لة بقية احييك على هذا العمل الرائع

[@tessenCNC]

و السلام عليكم شكرا جزيلا على تعليقك

[@behlulsimsek8708]

Very nice work, how about the CNC lathe, do you produce at home? I need a turret design, could you please share the design with me? Is there a grabcad site?

[@mohamedelsharaidy3087]

Hey man, I stumbled upon your amazing video while working on a similar project. I was wondering if you may give me access to the cad files. Thank and great job.

[@tessenCNC]

hello, thank you very much for your words, I am sorry, but for the moment I will not make public the plans, best regards

[@catmeta6044]

bacano

[@tessenCNC]

Muchas gracias amigo 👍🏻

[@rengankrishnaiyer6912]

superb work. where did you purchase the curvic coupling ? Did you machine them ?

[@tessenCNC]

Hi, thanks, no, these parts are precision ground and hardened, they are listed in the comments - hirth couplings: Z48 diameter 100mm from tedisa-hirth.com

[@rengankrishnaiyer6912]

@@tessenCNC thank you

[@HectorRamirez-zp6nc]

buen dia disculpa como controlas el giro de la herramienta sin sensores de posición para cada una estoy haciendo un torno cnc y estoy en este dilema como girar y poner en la herramienta exacta estoy usando mach3 la idea que se me ocurrió es ponerla como un 3er eje

[@tessenCNC]

Hola, hay varias maneras de hacerlo, yo no utilizo mach3, pero si, como un 4 eje, configura los pulsos del eje del controlador de la torreta para que una unidad de movimiento sea una posición de la torreta, es como configurar un eje rotatorio, si tu motor tiene 360 pulsos por vuelta y tienes 6 herramientas, de una posición a la siguiente tienes que moverte 60 pulsos

[@marcosbalich3413]

Excelente proyecto, que piston usas? como podría encontrar el nombre para sus dimensiones?

[@tessenCNC]

Gracias, es un pistón de 80mm de diámetro, no es comercial, está construido a medida

[@miwarrr2248]

Hello, great job! Can you share your project or drawings?

[@tessenCNC]

Hi, thanks for the comment, it is a lot of work, for now I am not considering it but I do not rule it out for the future. regards

[@aldubay]

Buen trabajo, amigo, ¿puede proporcionarme los dibujos de ingeniería para que pueda hacer uno para la máquina de torno CNC que hizo para poder enseñarle a los estudiantes de secundaria, incluso si es por una cierta cantidad de dinero?

[@tessenCNC]

Hola, gracias por su interés, pero por ahora los planos no están disponibles, ni a la venta

[@javiermoto6063]

​@@tessenCNCyo tampoco daría los planos

[@tessenCNC]

@@javiermoto6063 gracias por la comprensión, es mucho trabajo y una vez que los planos están en internet pierdes el control sobre ellos y eso da pie a que se produzcan abusos, por eso mismo, tampoco los vendo, no vivo de esto ni me apetece por ahora regalar mi trabajo

[@rengankrishnaiyer6912]

Sir, how do you track the tool position? I noticed you use a hybrid stepper/servo and no separate position sensor?. I understand the microswitch is to indicate curvic coupling released and tool ready to rotate.

[@tessenCNC]

Hello, the turning motor of the ATC head is a 100w ac servomotor and I do not have a "tool 0" or index type position sensor, to know which tool I am in, when I start the lathe for the first time, if I leave one of the 8 buttons on the control, pressed for 2 seconds, this indicates to the control the number of the tool that is in the working position in the turret, if it is pressed for less than 2 seconds it will change to the number of the tool of the button pressed and if it is longer than 2 seconds it will indicate that the tool in the working position corresponds to the number of the button pressed.

[@rengankrishnaiyer6912]

@@tessenCNC thank you sir, nicely done

[@jimicardenas1101]

buen día amigo quisiera saber q tarjeta controladora utiliza para manejar su torno. gracias

[@tessenCNC]

Hola, esta puesto en el video :) la placa es la KFLOP de dynomotion, es una placa muy potente, y muy versátil, si sabes algo de lenguaje C te la recomiendo, aunque si no tienes idea, tiene muchos ejemplos y muy buen soporte para cosas "básicas" saludos cordiales

[@mihaelrosso5124]

Si entiendo correctamente, ¿toda la carga de los resortes recae en un solo anillo de retención?

[@tessenCNC]

si, eso es, en el video la llamo "arandela de eje" y su nombre mas técnico es arandela seeger DIN 471

[@FabisuperBC]

Hola, no entiendo algo, osea que usted mismo hiso sus maquinas?, podria presentarnos su taller?.

[@tessenCNC]

Hola Fabian, efectivamente, yo me he construido mis maquinas, aunque para hacer algunos mecanizados tengo que usar maquinas prestadas. Me pensare hacer un video enseñando el taller, un saludo

[@9782ravi]

Can you tell us what gear (teeth and module) you used in this project?

[@tessenCNC]

Hi, yes, no problem, the gear ratio is 1:14,7 from motor to disc -> Z14-45 (module 1) z18-55 with a z24 freewheel (module 1.5) img.photobucket.com/albums/v219/tessen/torno%20cnc/torh176.jpg

[@9782ravi]

@@tessenCNC i count gear teeth on z18 it seems like z12

[@tessenCNC]

@@9782ravi yes, you are right, sorry for the mistake, I confused the primitive diameter with the number of teeth.

[@9782ravi]

What is the size of linear rail of both axis?

[@leszekbednarczuk6025]

¿Qué precio es posible el envío?

[@tessenCNC]

solo las coronas de acople son comerciales y cuestan 600€ + iva no es barato, de todas formas, no fabrico para vender, gracias por el interés

[@donno1967]

How much to buy ? Email Please

[@tessenCNC]

Hi Donno, only the hirtch coupling costs 600€ in materials there will be between 1100-1300€ I don't plan to make it, it wouldn't be well paid, neither I have right now time to do it, let's see if in a few days I get some time and make a video working after the last modification.

[@seimela]

Please sure the last mods we see how it goes ,it's already an excellent piece 👏.

[@behlulsimsek8708]

bro can you help me ?

[@tessenCNC]

Hi, what do you need?

[@behlulsimsek8708]

@@tessenCNC The drobox on which the design was loaded is no longer active. Can you share if the design is not custom?

[@behlulsimsek8708]

@@tessenCNC can you help me?

[@tessenCNC]

@@behlulsimsek8708 hi, that design is not mine, but the designer of the original is Dieter Freind if you read the rest of the comments he has written, ask him.

[@behlulsimsek8708]

@@tessenCNC It's been a long time since the conversation. Anyway, no problem, thank you.

[@pragatmudra8372]

English please

[@tessenCNC]

I'm sorry, but my spoken English is not very fluent, but you can put the subtitles in English.