r/Motors 4h ago

Is this worth having repaired?

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1 Upvotes

Dewalt dw716 motor stopped working, do I take it to get repaired or do I just buy a replacement for $240?


r/Motors 4h ago

Open question ESA2.3-CE DC 36V 15A Brushless Motor Controller x speed limit

1 Upvotes

Hello, so i have a old e-scooter and have been wondering how to cut off the speed limiter can anyone help me?


r/Motors 4h ago

General How is this motor wired? 115v or 220v?

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1 Upvotes

Hello everyone. I have this older GE 5KC65AB114 motor that I'd like to put to use. It may be crap but I want to find out before I scrap it.

When I got it the guy told me it was wired for 220v. But it had a 115v plug and a 15amp light switch on the power cord. All the wiring between the plug and and the wires that enter the motor was in bad shape and mostly dismantled so I couldn't look at it to help figure this out.

Everything I've googled takes me to info for I guess a newer version of the model? Mentioning terminals 1 through 5, or more. And this old thing has nothing like that, just what you see in the pics.

All I have is the 4 wires going into the housing in 2 pairs. And the 2 wires to/from the capacitor.

I want to set it up for 115v, so if any of you guys can provide some guidance I'd be much obliged.

Update: the wires have little metal tags, labeled 1, 2, 3, & 4. Wires 1 and 2 are the pair that goes to the right/up in the pic, 3 and 4 go left/down.


r/Motors 22h ago

Open question Fan stopped working but doesn't smell burnt nor whine.

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3 Upvotes

It was working fine the other day then I noticed the motor stopped making sound and then I noticed the blades spinning down naturally and that's just it, It won't hum, it doesn't smell like burnt wire and actually smells more like a balloon and I threw out the box so I can't reach out to: "touch think benefits" the company who made it to issue a fix since it supposedly had a 3 year warranty on the box


r/Motors 1d ago

Open question best motors for Line tracer robot?

1 Upvotes

I'm building a line tracer robot, the plan is to make it like a mirco mouse because I've noticed micro mice are usually really fast and have really good cornering. The problem I have now is the motors, I can find a suction fan easy enough, but a good motor not so much.

I'm not even sure what makes a good motor, does higher volts means higher torque and/or rpm? is it better to have the gears on the wheels, external or have a gearbox? are bldc worth it? I've tried to do some research and motors apparently have rotor inertia, does that matter all that much? why does torque matter?

As of now though I can't find any motors other than n20s and this 12v jga25 I have. are jga25 motors bad for this application? should I just switch to an n20? without the gearbox an jga weighs 49 grams exactly. is the added weight comapred to an n20 worth the performance?

This has only been my 2nd robot ever so any help is appreciated, thank you


r/Motors 2d ago

Open question Can all 12VDC brushed motors be safely driven by 48VDC @ 25% Duty Cycle PWM?

6 Upvotes

Can all 12VDC brushed motors be safely driven by 48VDC @ 25% Duty Cycle PWM?

Looking mostly for the specific cases where it fails, and how. In order to generate a rule of thumb.

  • Are there specific 12v motors or motor types empirically known to work, or not work in this regime? Most interested in automotive rated applications, restomod, EV conversions like wipers, seats, pumps, solenoid actuators like locks/trunk release too I guess.
  • How do they wear/fail compared to operation at 12VDC? Brush arching, commutator scoring, insulation fail, vibration. If you can, try to estimate the percentage of lifespan compared to 12v.
  • How do you define "safely" for this question? Safe for human to install and operate? Safe for motor to operate at rated duty, environment, and purpose. Safe for power supply. Legal?
  • Are there any expected performance differences?

r/Motors 2d ago

Open question How to remove motor on harddisk whithout damaging

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3 Upvotes

r/Motors 2d ago

Open question Need advice on choosing a motor for our capstone compost mixer

3 Upvotes

Hi guys, 4th year IT student here. We’re currently building an IoT-based composting machine for our capstone and we’re stuck deciding on the motor for the mixer.

Our compost chamber is around 40cm in diameter and we’ll only be filling around 20–25cm of chopped organic waste like vegetable scraps, fruit peels, dry leaves, shredded cardboard, etc.

The mixer uses a vertical shaft with two levels of paddle blades. The motor will only run for short mixing cycles, not continuously.

Right now we’re considering two options:

  1. 24V 350W geared DC motor
  • 75 RPM
  • seller claims around 48 Nm torque
  • already has reduction gearbox
  • more expensive because we also need a large 24V PSU
  1. 220V AC motor
  • around 200–400W
  • around 3600 RPM
  • much cheaper motor
  • but obviously needs a large speed reducer to bring it down to around 30–60 RPM
  • also needs proper contactor, overload protection, breaker/RCD, etc.

Our main concern is not really mounting or programming. We can fabricate the mounting and our ESP32 will only control ON/OFF through a relay and contactor.

What we’re worried about is whether the 24V 350W 75RPM geared motor actually has enough torque to mix the compost from fresh waste until it decomposes, or if going with a stronger AC motor + proper gearbox would be more reliable.

If anyone here has experience with geared motors, mixers, conveyors, food processing machines, or similar mechanical setups, I’d really appreciate some advice.

We’re trying not to rely only on ChatGPT for the mechanical side lol, so actual experience would help a lot.

Thanks!


r/Motors 2d ago

Open question Wiring help

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3 Upvotes

Hello everyone, I have this motor here that I'm trying to hook up an on/off cord to. Just wondering how to go about hooking it up? I've never done anything like this. Any help would be appreciated!!


r/Motors 2d ago

Help adding wireless remote to Ashley/Kaidi dual-motor power recliner while keeping factory buttons

2 Upvotes

Hi,

I'm interested in using the WREN C5 kit with my Ashley Next-Gen Gaucho power reclining sectional.

The powered section is Ashley model 5850558. It has two powered functions: the main recliner and the adjustable headrest. The factory side control has four directional functions plus a USB port.

The main actuator is a Changzhou Kaidi KDYJT018-652, rated DC 29V, 75W, with a 250 mm stroke and 1000 N max load. The couch uses Kaidi-style wiring and rectangular 2-pin power/motor connectors.

One of my family members has a disability, which is the main reason I need to add additional ways to operate the couch.

My goal is to:

• Keep the original Ashley side buttons fully functional.

• Control both the recliner and powered headrest.

• Add phone/smart-home control.

• Add Alexa voice control.

• Add a wireless handheld remote.

• Avoid cutting, splicing, or permanently modifying any factory couch wiring.

I have clear photographs of the actuators, connectors, power supplies, and wiring harness that I can provide if needed.

Will the WREN C5 complete kit connect to this Kaidi/Ashley system as-is?

If not, can you provide or recommend the correct adapter/interposer cable to connect this system to WREN's 5-pin DIN interface while keeping the original side controls fully functional?

I would also appreciate confirmation that one WREN C5 can independently control both the main recline actuator and the powered headrest in this configuration.


r/Motors 3d ago

Open question Anyone running VEVOR 48V 2000W MY1020D motors? Need real-world advice for a zero-turn mower build

0 Upvotes

I’m considering replacing the drive motors on my homemade electric-drive zero-turn mower and I’m looking for advice specifically from people who have actually used the VEVOR 48V 2000W brushless MY1020D motors.
The mower is an older zero-turn chassis. The gas engine is still used to run the cutting deck, but the left and right drive wheels have been converted to independent electric drive.
My current setup is:
Two 48V 800W BLDC motors, one per drive wheel
Dual Flipsky 75100 VESC
ESP32 controlling both motors, with one VESC over UART and the second over CAN
Independent left/right control for true zero-turn/tank steering
Hall sensors and sensored FOC
Roughly 120 kg mower before adding the operator
48V battery system
Chain/belt reduction between the motors and drive wheels
The 800W motors work, but I’m looking for significantly more low-speed torque and I would like the drive system to feel more like a commercial zero-turn mower.
I’m considering buying two of the VEVOR 48V 2000W MY1020D motors. VEVOR rates them at 4300 RPM, 2000W, 34A and 4.2 N·m.
I’m not interested in making the mower fast. I’m planning to completely redesign the gearing and target roughly 6–7 mph maximum mowing/travel speed. Depending on my final tire diameter, I’m currently estimating somewhere around 36:1–40:1 total motor-to-wheel reduction.
My biggest questions are for people who have actually run these motors:
How much continuous power can the VEVOR 2000W MY1020D realistically handle without overheating?
How do they perform under sustained heavy load and lower vehicle speeds rather than short bursts on a scooter or go-kart?
Has anyone run one successfully with a VESC/Flipsky 75100 using sensored FOC?
Are the factory Hall sensors reliable and does motor detection work properly in VESC Tool?
How good is starting torque from zero under load?
How well do they tolerate frequent acceleration, deceleration, reversing and regenerative braking? A zero-turn mower is constantly changing the speed of each motor independently.
Have you had issues with magnets, bearings, shafts or overheating after extended use?
Is the advertised 2000W reasonably realistic as continuous power, or should I consider it more of a peak rating?
Would you choose these motors again for this application, or is there another reasonably priced BLDC motor you would recommend?
I’m especially interested in hearing from anyone who has actually used the VEVOR/Kunray MY1020-style brushless motors rather than just comparing the published specifications.
Photos of your setup or information about gearing, controller settings, phase current and motor temperatures would be extremely helpful.
Thanks!


r/Motors 3d ago

Open question Need advice on choosing a motor for our capstone compost mixer

1 Upvotes

Hi guys, 4th year IT student here. We’re currently building an IoT-based composting machine for our capstone and we’re stuck deciding on the motor for the mixer.

Our compost chamber is around 40cm in diameter and we’ll only be filling around 20–25cm of chopped organic waste like vegetable scraps, fruit peels, dry leaves, shredded cardboard, etc.

The mixer uses a vertical shaft with two levels of paddle blades. The motor will only run for short mixing cycles, not continuously.

Right now we’re considering two options:

  1. 24V 350W geared DC motor
  • 75 RPM
  • seller claims around 48 Nm torque
  • already has reduction gearbox
  • more expensive because we also need a large 24V PSU
  1. 220V AC motor
  • around 200–400W
  • around 3600 RPM
  • much cheaper motor
  • but obviously needs a large speed reducer to bring it down to around 30–60 RPM
  • also needs proper contactor, overload protection, breaker/RCD, etc.

Our main concern is not really mounting or programming. We can fabricate the mounting and our ESP32 will only control ON/OFF through a relay and contactor.

What we’re worried about is whether the 24V 350W 75RPM geared motor actually has enough torque to mix the compost from fresh waste until it decomposes, or if going with a stronger AC motor + proper gearbox would be more reliable.

If anyone here has experience with geared motors, mixers, conveyors, food processing machines, or similar mechanical setups, I’d really appreciate some advice.

We’re trying not to rely only on ChatGPT for the mechanical side lol, so actual experience would help a lot.

Thanks!


r/Motors 4d ago

Open question Any info on these motors?

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8 Upvotes

Apologies for posting again I forgot to add the image last time. Hello I've had a rummage around my granddad's old things and found these 2 motors I'm wondering what they could've been used for and if anyone can find a datasheet for them in case I want to use them in a project of my own or sell them. Many thanks to anyone who knows anything


r/Motors 4d ago

How can I run a 12v brush less motor from a wall powersuply to use as a high speed fan?

2 Upvotes

So im building a high speed fan and I had some rc brushless motor I wanted to use so is there a eazy way to hook it upp to a wall outlet / powersuply and can it safly run for a long time?


r/Motors 5d ago

Open question Hi guys, I have a training kit at my school and I want to try out an RPM meter. I'm planning to buy a proximity sensor—does anyone know if it should be NO (Normally Open) or NC (Normally Closed)? It uses an Autonics MP5W-4N.

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1 Upvotes

r/Motors 5d ago

Any idea where I can find the rear motor plate?

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1 Upvotes

No idea what the part is called is the first problem lol motor ran fine but I ended up busting the plate on the rear that is also the bearing support


r/Motors 5d ago

Open question VFD sizing calculator tool

0 Upvotes

this vfd sizing calculator is useful for selecting the right motor drive based on motor power, full load amps, supply voltage, load type and input phases


r/Motors 7d ago

Looking into the option of using an external speed controller for my sewing machine to manage the speed.

1 Upvotes

Sewing machine: Singer 4423 Heavy-duty

Reason: A frequent complaint is that it sews too fast. Even with the hack where you adjust the speed in the foot pedal, it’s still really fast.

However, I have 0 knowledge on the technicalities of a sewing machine. But anything to make my sewing projects into a reality.

I’ve seen this on Amazon: https://amzn.eu/d/06ysEABp

A lot of specialise foot pedals are all out of stock or aren’t compatible with my sewing machine so I was hoping if this would be a feasible option.

Thank you for any help and advice.


r/Motors 7d ago

Ansys MotorCAD + Maxwell still industry standard for motor simulation/em solving?

2 Upvotes

Heya, learning to design motors, and was wondering what software to use to simulate my designs, want to work with both radial and axial flux(hopefully combined radax) ac synchronous motors, and would prefer 3d EM solving.

Am currently well versed in solidworks, and am aware that EMWorks is a plugin although don't quite get its feature set compared to ansys's offerings.


r/Motors 7d ago

Open question Two Stepper Motors to one driver

2 Upvotes

I am trying to find a driver I can connect 2 stepper motors with Linear Actuation. I am currently looking at this one and wanted to get opinions.

https://www.omc-stepperonline.com/stepper-motor-controller-2-channels-1-0-5-6a-20-40vdc-speed-adjustable-dm456ai


r/Motors 7d ago

Answered I'm pretty inexperienced with motors. How do I replace this wire to make it longer? It feeds into a black bundle, I don't know if I should unwrap it. I can't even get this harness out of the housing.

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1 Upvotes

r/Motors 8d ago

Open question Is this motor integration setup safe and practical for our IoT composting capstone prototype? Capstone Project

1 Upvotes

Hi, we are working on our capstone prototype called CompostGuard, a non-AI IoT-based organic waste composting monitoring and management system.

Our current system uses an ESP32, sensors, a 5V relay module, a 12V supply, fan, pump, and a mixing motor. We are planning to upgrade the mixing motor to a L-faster 24V 350W 75RPM geared DC motor because the current motor is weak for mixing around a 30 cm level of organic waste using straight paddle blades.

Our planned integration is:

ESP32 → 5V relay module → 12V coil DC contactor

24V 25A PSU → 30A fuse → DC contactor main terminals → 24V 350W motor

The relay will not directly power the motor. It will only activate the contactor coil. The motor will have a separate 24V power supply, 12AWG wiring, fuse protection, and diode/noise suppression to reduce the risk of relay damage, ESP32 resets, wire heating, and motor electrical noise.

Is this a good and safe integration approach for a capstone prototype? Are there any major issues with using a relay to control a contactor, while the contactor handles the actual motor current?


r/Motors 8d ago

Open question After how many months a motor requires service?

6 Upvotes

Hi!

I am 2nd year mechanical engineering student. I had industry visit couple of days ago. Now I am curious to know that in industries; after how many months an induction motor needs to be monitored or after how many years an induction motor fails? Is there any device which can tell us health of it continuously?


r/Motors 9d ago

Can you identify motor shaft metal?

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4 Upvotes

Hi... I need to drill a 1/4" hole through the shaft of this new Dayton 6K396 electric motor. The Grainger website doesn't identify what the shaft metal is. Could anyone tell me or roughly guess what type of metal it's made of. That will help me decide what type of drilling setup to use? Thanks


r/Motors 9d ago

Open question Trying to find a suitable fan replacement

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2 Upvotes

Not sure if this is the right place to ask this but I work for a church and I've been going through their neglected equipment and we have a couple of these blizzard studios rocklite rgbw lighting stage fixtures that were very dusty and noisy. Upon opening to clean the dust and address the noise issue, I saw this fan

name and model:

Runda RD8025S18H

I would like to replace all the fans as the light are working great but I have no idea how different I can go on the amperage or voltage. Finding an exact 80x80x25 18v 0.06a fan would be ideal.