Build electric washing machine from saw motor

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Discussion Overview

The discussion centers around the feasibility and methods for building an electric washing machine using a saw motor, particularly focusing on the motor's ability to reverse direction for agitation. Participants explore various mechanical and electrical approaches to achieve this functionality, including the use of gear couplings and alternative motor designs.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses a desire to build an electric washing machine using a circular saw motor and questions the feasibility of reversing the motor for agitation without damaging it.
  • Another participant suggests that most washing machines use a gear coupling mechanism to reverse motion rather than reversing the motor itself.
  • A follow-up post acknowledges the gear coupling concept and seeks further clarification on the specific mechanism involved.
  • Another participant proposes that any electric motor, along with V-belts and a crank, could achieve the necessary agitation action, questioning the need for a saw motor.
  • A technical contribution mentions the Fisher and Paykel Smart Drive series, which utilizes a stepper motor controlled by a microcontroller for both agitation and spin cycles, suggesting that such motors could be repurposed for DIY projects.

Areas of Agreement / Disagreement

Participants present multiple competing views on the best approach to achieve the desired washing machine functionality, with no consensus reached on a single method or design.

Contextual Notes

Participants express uncertainty about the specific mechanisms for reversing motor direction and the potential for using different types of motors, indicating a need for further exploration of designs and components.

Who May Find This Useful

Individuals interested in DIY projects related to home appliances, mechanical engineering enthusiasts, and those exploring alternative motor applications in household devices.

LadyEyeWire
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Hi everybody,
I've been trying to find instructions on how to build an electric washing machine but am not having any luck! I found non-electric manual operated makeshift washers, but I need something with a little more oomph! The closest thing I've found is someone made a power saw from a washer motor. Not quite what I was looking for but it did get me thinking that I could use a circular saw motor for the spin action on the washer. But I'm not sure if it's possible to get it to go in reverse---then forward--then reverse--then forward, to achieve that crucial agitator function, without burning up the motor. Does anyone have any ideas for what I could do? I'm not sure exactly how it would work, as I haven't gotten to that point yet. Just seeing if it's possible first! I guess I'm just so tired of hauling clothes down to the laundromat every week, and this sounds like a fun project to attempt. Any help or guidance you can offer me is truly appreciated! Thanks guys!
 
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I think most washers reverse the motion with a gear coupling trick rather than by actually reversing the electric motor.
 
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Dr. Courtney said:
I think most washers reverse the motion with a gear coupling trick rather than by actually reversing the electric motor.

Good to know! I will make note of the "gear coupling" being related to rotational shifts. Thank you! The more names and terms for components etc that I have, the closer I can get to building it and actually getting it to work! Would you happen to know what the actual "trick" is?
 
Or use a design that incorporates the crucial agitation.

 
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LadyEyeWire said:
The closest thing I've found is someone made a power saw from a washer motor.
Circular saw or reciprocating saw? I do not think you need a saw motor to reverse the above example.
Any electric motor with a few V-belts and a crank could produce the agitation action.

The Fisher and Paycal, Smart Drive series uses a 48 pole stepper motor to directly drive the drum during both agitation and spin cycles. The approximately 1HP, 750W rated stepper motor is controlled by a microcontroller through a three phase H–bridge, all powered from single phase AC, rectified to DC. Those used motors are often re-purposed as wind generators. Search the web for ideas.
 
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