Building a DIY CNC metal lathe with CNC control using Mach 3. Using steel, aluminum, bolts, nuts, and some parts from Amazon i created a 10 inch x 24 inch CNC metal lathe. Using a somewhat on the fly design of a metal lathe with a CNC controller. This video goes over the lathe build and there is a separate video (offered at the end and during the video) for the CNC drive that also covers a recap of the design of the lathe. I also thought it would be a good idea to hold a piece of aluminum I was sanding with a flap disc… It wasn’t a good idea, but a painful lesson as I almost cut off my left thumb.

NOTE: I have updated the head stock and cross slide and tool post to make it more rigid. See that new video update here: https://youtu.be/sBfbCSxcs3I

After testing and using the head stock as designed in this video the chatter is too high due to the overhang and vertical height versus rigidity of the thin steel on the rectangular tube I used for it. Look for the video here in a few weeks or subscribe and turn on notifications for an alert when it posts. I will also be releasing concentric readings and calibrate the z axis in an upcoming video as I work on fine tuning and completing setup.

Please like and subscribe. And if there is something you didn’t like please let me know and when I fix it I will thank you in my next video. This is one of my first videos and I am still learning. Thank you for watching.

Items used:

Drive screw:

Wireless mini keyboard ($11):

Nena 23 stepper motor:
High Torque Nema 23 CNC Stepper Motor 114mm 425oz.in/3Nm CNC Mill Lathe Router https://www.amazon.com/dp/B00PNEPW4C/ref=cm_sw_r_cp_api_glt_fabc_YFAX3AJES9T7MTEMETWZ?_encoding=UTF8&psc=1

3 inch and 4 inch 10-32 thread screws:
The Hillman Group 101111 10-32-Inch x 3-Inch Flat Head Phillips Machine Screw, 100-Pack https://www.amazon.com/dp/B003VFY4AS/ref=cm_sw_r_cp_api_glt_fabc_BP7WGTQYG8057S65RK1Z?_encoding=UTF8&psc=1

The Hillman Group 90332 10-32-Inch x 4-Inch Round Head Combo Machine Screw, 100-Pack https://www.amazon.com/dp/B003VFVWDK/ref=cm_sw_r_cp_api_glt_fabc_AWKERMKBKANHX9Q7PEDH?_encoding=UTF8&psc=1

Lock nut for 10-32 screws:
100 Qty #10-32 Stainless Steel Nylon Insert Hex Lock Nuts (SNG814) https://www.amazon.com/dp/B07XGM85LM/ref=cm_sw_r_cp_api_glt_fabc_QB7XBF84XTW770AYR1MS?_encoding=UTF8&psc=1

CNC kit for CNCLinux or Windows 7:
5 Axis Mach3 Stepper Motor Controller Board Breakout Board interface board For CNC Router Engraving Milling Machine https://www.amazon.com/dp/B07BFTRTBC/ref=cm_sw_r_cp_api_glt_fabc_J9B401ZE0H2MTX4387A9?_encoding=UTF8&psc=1

CNC motor stepper driver:
Twotrees Stepper Motor Driver, TB6600 4A 9-42V Nema 17/23 CNC Controller Single Axes Hybrid – Upgraded Version … https://www.amazon.com/dp/B07PQ5KNKR/ref=cm_sw_r_cp_api_glt_fabc_CY58T5R2YXXJ0TH517AF?_encoding=UTF8&psc=1

Coupler fro NEMA motor to screw drive:
uxcell 2pcs 10mm to 10mm Inner Dia Rotatable Universal Steering Shaft U Joint Coupler L35XD16 https://www.amazon.com/dp/B07GN1SXDQ/ref=cm_sw_r_cp_api_glt_fabc_2DDW0R88SM7ZTQMS8FAV?_encoding=UTF8&psc=1

Cable routing/protector:
Yecaye 26FT 1/2″ Split Wire Loom Tubing, Wire Harness Wrap Cover Sleeve Conduit, Cord Protector Loom from Pets, Flexible Wire Tubing Protect Wires for https://www.amazon.com/dp/B08TLV5SHY/ref=cm_sw_r_cp_apip_o4ihqV9sKf4L2

If there was something I left out that you are looking for, just ask in comments and I will get it to you ASAP. Thank you!

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