Low torque homemade lathe-type machine

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SUMMARY

The discussion centers on finding a suitable motor for a homemade lathe-type machine that requires approximately 2.5 kgcm torque and a variable speed range of 60 to 180 RPM, controllable via a foot pedal. Key considerations include the type of motor (AC single/three phase or DC), the configuration of support for the motor, and alignment with the stock feed apparatus. Participants emphasize the importance of defining specific requirements and researching available components before making a purchase to ensure compatibility and functionality.

PREREQUISITES
  • Understanding of motor specifications, including torque and RPM.
  • Familiarity with lathe components, such as chucks and stock feed mechanisms.
  • Knowledge of motor types, specifically AC and DC motors.
  • Basic skills in mechanical assembly and alignment of components.
NEXT STEPS
  • Research AC single-phase and three-phase motors suitable for lathe applications.
  • Explore DC motor options that meet the torque and speed requirements.
  • Learn about foot pedal controllers compatible with lathe motors.
  • Investigate alignment techniques for motor and stock feed apparatus in lathe setups.
USEFUL FOR

This discussion is beneficial for hobbyists and DIY enthusiasts looking to build or modify a lathe machine, as well as engineers and makers interested in motor selection and mechanical assembly for precision machining tasks.

mtranter
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Hi

I am trying to find a motor that you could attach a chuck to and have somewhere around 2.5kgcm torque, with a speed variable between 60rpm and 180rpm, controllable with a foot pedal (smilar to a sewing machine pedal). Ideally there would be a clutch in there as well. Is there anything out there that might fit the bill?

Thanks,
Matt
 
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What you ultimately end up obtaining will depend greatly on the specs that you set, other than the general drive motor and controller idea. I believe that you can find many lathes on the Internet that will provide the essential specs that you desire. What length of stock are planning for? What swing are you wanting to deal with? How will you maintain the stock feed? Once you have all of your requirements defined, and can purchase the motor (AC single/three phase, DC, etc.). You will then need to configure an appropriate support (height and swing) for the motor and stock feed apparatus, align them, and attach the chuck to the motor. You can always add one of several controller types that you might want. I am assuming that you know what you are doing and that you are on some sort of limited budget. Otherwise, I would recommend purchasing a unit that meets or exceeds your specifications (based upon your requirements).

Above all, research your available components and building supplies before you purchase them.

I hope this helps,
 

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