Homemade DIY Small CNC Lathe ,Part7 

Thank you for appreciating my video. If you don't mind, could you tell me what you liked about it?

Thanks for your support. It is very motivating. I'm working on a new website right now, so I'm not posting much on youtube, but I'll try again when I get settled.
Thank you.

@@a-cnc-f Do you share plans and material list for the mini cnc lathe? or sell those?

I do not plan to sell that CNC lathe, but I sell the 3D model. Right now, though, we're focusing on building a website. I will write an article about the CNC lathe. 50% off Coupon 79E465C18BCF70FCEC35FB0575C0E7 awesome-solution-workshop.teachable.com/p/homemade-diy-small-cnc-lathe-3d-model

@@a-cnc-f sorry for my bad english yes i mean the plans/3dmodel

It is not your problem. Since there are many people who use English all over the world, I post my RU-vid videos in English, but my English is terrible.

Thanks for the advice.

or really sharp HSS tools

Thanks for the advice. But this is the maximum of the lathe speed

Thanks for the advice.

Why does that work? I've seen videos of commercial lathes build with the tools upside down but didn't understand why. Thanks.

@@nickp4793 it's do do with the cutting forces pulling the tool into the work with the fulcrum point on the inside of the tool post. When you flip the tool the cutting forces lift the tool away and it self regulates.

@@galactica1980 Yeah, but this introduces other problems (waste of use-space, tool standing time, tool working angles, chip breaking hygiene, stiffness, etc.). The solution of sane people is to use the correct cutting speeds (MATH and RTFM involved ... scary? No! hehe). If resonance will hit you ... a +/-5% variation in speed will not harm you or the surface of your workpiece. Also, Trivia: If you hear something (And I guess the machine is dead if you don't hear anything) then there is vibration ... That is the nature of our universe, physics. What's important is that you don't have CHATTER while cutting the workpiece. That is something different and you guys should use the correct terms ... or no one knows what is meant at the end of the day.

Some additionally stuff: You can also use the RU-vid function to tell, what you mean ... if you don't find the words. Like the turning sounds at time-mark ( 4:30 ) ? That is btw not cast iron. Most of these types of screws are originally made from cold-rolled steel, which is then drawn or coiled further into wire. The final production then includes rough turning, hexagonal shaping/broaching to size and the rolling of the threads through the effect of radial force. It is not uncommon for these screws to have an increased degree of hardness simply due to the compacting properties of the work steps. That might also cause problems. The appropriate carbide, adjusted and correct cutting speed, lots of lubricant and a little patience will definitely help in such a case;) Or is 6:46 meant? ("It was vibrating a bit") ... Parting off with the parting tool is a completely different operation and places completely different challenges on the machine. However, you can easily reduce the feed here, since this surface has to be reworked anyway and can never meet a high tolerance or quality. If that is what is meant: What is this nonsense here with this strange advice??? That doesn't make any sense!:)) Or 8:37 ... ? That is simply because the driving motor can't bring enough torque on the axle for the cutting operation. There is only one thing that helps ... and turning around a tool isn't the answer to that question, hehehe (Tip: it has to do with providing the needed power to cut. That can be done by a stronger motor, a different belt translation or simply reducing the force needed to cut ... which @a-cnc-f actually did in the video and I call EVIDENCE for what I said)

I think it is easy to CNC your lathe. All you need to do is to set up your lathe with steppers motor to rotate the XY axis. Linuxcnc would be a good control program, but you will need to learn how to set it up.

I have already ordered the quick changer post. Looking forward to it.

Changing the gear ratio will increase the rpm but will not produce enough torque. To achieve higher RPM and greater torque, the motor must be larger. In order to install a larger motor, the basic design will have to be changed. It must be very important for me to have a small machine.

Thanks for the advice. It will be helpful.

Long time no see.

This is because the maximum speed of this lathe is 340 rpm. Since the motor is small, torque is important.

It took some time, but it's finally finished. I'm thinking about what to make with this lathe.

Using a linear guide for the X-axis and ball screws would make the machine too large, so I decided to use a slideway.

@@a-cnc-f All understandable. The linear guid used on the 5axis pocket mill looks to be no bigger than your slidway. But as to cost I don’t know.

Thanks for the advice.

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