thank you, very informative I built a 3x3 table with 8080 frame with ball screws, 100 lb gantry. I use NEMA 23s 570 in oz motor. I have seen these motors twist the frame before the motor stalled.

Wow! Someone who actually goes in depth about the inch lbs of torque ratings on steppers👍

Ran across this video in doing research for a new project. Have some questions, thought I would ask here. Long story short, I am in need of building a rotary table of sorts to polish a telescope mirror. Normally, mirror grinding machines like this are built with ~1hp 3 phase induction motors using a VFD for speed control. The tables can be run anywhere from 0 to 60 RPM and gearing is done via belts/pulleys or reduction gearboxes. Table diameter would be around 18-24 inches and the mirror diameter would be 12-16 inches. Load placed on the table is typically weight of the mirror + polishing tool + 20-50lbs of weight to help with grinding/polishing. Let's assume a load of 75 lbs total max, real world scenario probably isn't even close to this. The load will generally not be on center and will overhang the edge of the table at times. The problem with the 3 phase 1hp motor is that I really don't want something that big so I was thinking of going with a NEMA 34 (1600oz/in) plus a 10:1 reduction NMRV40 worm gearbox as the footprint would be much smaller. So questions are: Is NEMA 34 overkill for this? I'm worried about stalling the motor, skipping steps, not having enough torque, etc... Is a stepper motor even a feasible way forward for this even at NEMA34 size? Would NEMA 23 suffice? I get the feeling no. I have experience with NEMA23 ClearPath steppers on my CNC machine I built, they are quite powerful and perform like a champ on the machine. I've tried to stop the gantry from moving forward using my hands but im pretty sure the earth just rotates underneath rather than the gantry stopping. It's pretty strong. That said, a CNC machine driven by ballscrews and a rotary table with 75lbs of weight on it are completely different applications. Any thoughts or insight would be appreciated.

Thank you for explaining this so well! Saved me a bunch of headache and money

Thank you very much for this explanation, really helped me understand the ratings.

You just saved me a couple hundred dollars and possibly a trip to the hospital. Great video and thanks again!

This helped alot , my gantry is about 80 lbs on the 4x8 table, so that 600 oz motor will do what I need to do on this plasma. Thanks Sir!!

Good job, sharing valuable info, Thanks vince

I'm about to start a Gerber Sabre 408 retrofit. Sounds like you've done a few of those. I'll be working on wood primarily. Any "standard" recommendations on motors for the X, Y, and Z axis. I really find your videos very informative!

This is the info I’ve been looking for. Thanks

thnks you for the explination.

Thank you so much

This was very very informative, thanks a lot. My job depends on the information you give out , but there are many unanswered doubts and no mentors at all :( wish I could get in touch with you

Thx for the explanation, specially for students like us. What would u recommend for turntables or "lazy susan" that can carry atleast 60 kg.

Thanks, Now I feel good about buying Nema 42's for a concrete printer

Hi, nice,I need help to build my cnc

I have an application that requires a 7.5 N.m torque. which stepper motor would you recommend for this application ? thank you for this video😍

Hello, and thank you for this video (and the others) Can you please do a video on steppers vs servos? Most high end tables use servos and I am leaning towards that for my build

I need a stepper for which can produce maximum of 50nm torque, here i don’t have any concern regarding speed , speed can be compromised , can u suggest please, actually i m making robotic leg with upper legweight 12kg, lower leg weight 5kg , hip actuator needs staring torque of 45newton (not included friction), my calculations are correct , i have used Adams,Solidworks,matlab for confirming my required torque , they are giving requirement of 45-50 maximum torque for the hip actuator, so can u suggest a stepper motor for that

This is the best video I've found on this subject by far. Thanks a lot man!

I'd like to see what the thoughts are on using these motors for robotics. It's something I'm looking to get in to one day

it would have been nice with metric system (Nm)

I have a nema 23 on my Z axis on my Lathe and when it comes to doing a peck cycle it misses steps needs more torque, if I lower the acceleration will that give me more Torque ?

i have been trying ti find out why a stepper. motor . & not a dc motor like the one that drives a Mobility scooter What is the difference & why .?

Thank you! Wondering what it would take to run a sawmill carriage ? Not huge logs , typically few hundred pounds

If I was looking to upgrade a motorized saw mill would my eyes still be bigger than my stomach? Not driving the blade just possibly the forward/ back/ blade up/ blade down motions.

I need a motor for a Ribbon mixer (very big long cement mixer) 4000L of powder product, what sort of motor should I be looking at I have 0 knowledge, all I know is I need high torque low speed motor

NEMA 34 is a "monster"?

I want to build 5x10 cnc plasma table, is NEMA23 motor is fine??

very powerfull motor wonder why there not used in electric cars ??

How do you find out what the ounce/inch output is? All I seem to find is what the standing torque is but it doesn’t give any other information . I have the Nema 23 23HS45-4204S and it says in the spec 425oz/in holding torque but no other specs I can find. Thx

I used the nema 23 motors to power my pedersen mill..i was suprised how powerfull they are with lifting the bed and milling steel....now i ordered the nema 34 to power up the bridgeport

Hey new to the cnc world, looking at converting my zx45 mill, I have some of the nema 23s with 425oz/in tq sitting here wondering if you think they'd be sufficient for the x and y axis direct drive with ballscrews?

how to calculate running torque(normal) from holding torque

can the nema 23 use a gearbox be able to rotate the thread to press up to 50kg?

Question is can i mill aluminum using my nema23 or it depends on the spindle size what the best spindle to mill aluminum if so thank you for the amazing video

It's this the nema 34 stepper motos ?

Hi, I bought a Nema 23 with a 6.5mm shaft to turn my 150mm rotary table. I can turn the table by turning the 11mm shaft by finger and thumb but the stepper dose not have the torque to turn the table. I then purchased a much bigger Nema 23 with a 10mm shaft but it still won't turn the table. Any help appreciated thanks

You have simplify CNC for novice like me. Thank for a great job you are doing. I would like to move a 250Kg plasma gantry using rack and pinion system and steel roller on a beam. kindly advice on the motor size to use.(with gear and without gear). Thank a million times.

Which one of these would be good for a projector screen?

How can this be converted into weight a motor could lift if mounted vertically?

Thanks in advance..i would like to use nema 23 in my m1tr turret milling machine to power feed x,y and z axis, would it be enough to handle the loads and the machining forces.

I am looking to use a motor to rotate a pneumatic cannon; is it possible to axially load these motors or will some sort of rotary table be needed?

Thanks for your explanation.I have a problem can u give me any advice please? I want to replace screw of M10 ,which need a 50Nm torque to turn around, with a stepper motor.Which size of motor should be used.Please help me..

Educational videos should include the metric units too because I don't even understand how big this torque is 😢

how many torque on 2000 rpm friend..for nema 23 and 34 ,thank you for your answer

I like to design and built things for fun. Vehicles, buildings, whatever. Idk much about electric motors. These probably arent what im looking for but do you know any website or video that describes an electric motor for about a 1000 pound tracked vehicle? Thanks

Can you easily measure the torque that the motor is producing? I need to build a test bench to know the max amount of force the product can take / find the breaking point

Which one would you recommend for a machine with 6 spindles cutting 4x2 inch rebates in timber. Do you have adapters to go from nema 23 to 34

What would be an ideal motor size for a hand(manual) coffee burr grinder for espresso?

🤮 Ounce inches

So I’m actually working on a project for which I’m making an automatic door, and was wondering which motor to use.? The motor according to me will be rotating connected in a v belt fashion to the hinge of the door to rotate it. When I mean hinge it has a rod passing through the hinge area of the door. Can u help me regarding this?

What stepper motor would work in a sewing machine? I am wanting to swap motors for better control of my speed.

When you say this is 1700 ounce inch torque...but can you tell at what speed it is that torque?

What does it mean to write 10kg/cm on a DC motor?Will it be measured from the center of the shaft or above it

Can these motor used in skateboard becoz they are having high torq

Hi, love your channel and info. Great work!! I am starting a DIY project where i am searching for a motor to make a outdoor sun shade blind at the car park. The width of the parking lot is 5.5m so i was thinking to have all the fabric rolled up on a metal stainless bar and have a motor roll it up and down. Which motor would you recommend ?

Hello. I wanted to use stepper motor to lift the screen. Can one 18.9 Kg-cm motor lift 10kg weight?. Please help. Thanks in advance.

Hi, I have a question... I am building a full size 8ft by 4ft cnc, and i am using as stepper motors the nema 34. Do i need to use a gear reduction, or i can assemble them exactly as they are? Looking forward to your reply. Many thanks.

Hello corvetteguy50, Im thinking of building a 48" x 48" plasma cutter table, did you think the nema 23 motors will work on this application. Thanks

Hi. I am doing diy cnc small mill for metal and want to put 2010 ball screw. What stepper motor you suggest and what about availability . Also want to put 5.5kw spindle estimated weight of spindle 20kg

I'm doing a project that is making the camshaft of an one cylinder generator engine to run on something else than the crankshaft and was thinking of using a stepper motor. I'm just confused on what size I need. I need the stepper motor to spin at 4000rpm and have enough torque to apply a 20 Newton force to the engine valves. Could you help me out? Thanks so much for your video it helps a lot.

Any recommendations for a set of open loop stepper motors to drive the wheels of a 13x16 foot, 5 ton gantry crane on a steel v-track?

do you think on the same driver i will see a difference from the 269oz to 425 oz ?? my x axis randomly stalls

what is load handling capability of NEMA34 when lead screw is attached with motor for moving load up and down

Can I use nema 23 motor for manual surface grinding bed movement in y axis

If you drive each y-axis with a separate motor do the torque ratings add linearly. For example 2 x 2nM = 4nM?

Hello Sir, I am looking for a stepper motor for one my application which is a rotating table. I would need to rotate the table (22" diameter) in steps of 10 degree with 10 sec pause on each step. Max center weight i would have is 20 lbs. Can you please suggest me a stepper motor, Not sure if i should go with Nema 23 or 34. Also i would be adding an wormgear to the motor.

My application is going to be to drive an 16mm diameter extrusion screw as a part of my capstone project and from the calculations I have done it seems that I may need the 34 but do you think diffferently?

1700oz/in means 12n*m so this kind of motor can be used for construction of a electric scooter? What will be a nice battery for it based on your knowledge?

I want to dona retro fit on a Commercial blender Would you be willing to help me if I send you the specs of the old motor

Thanks for this vid! just bought a nema 23 with 8mm shaft, and I'm looking for a reduction gear, even a simple spur gear. Not only that I found nearly nothing on eBay and aliexpress, but the very few I did find weren't design the 8mm D shaft. Any recommendations?

thanks for the explanation, i need a motor with high speed (150- 500 rpm) and that can carry 3-10kg. What motor stepper u reccomend me?

Hi Mate, I am going to carry a steel pallet (overall weight of 700 kg) over rollers with 2 stepper motors on each sides, do you reckon "Nema 42 CNC Stepper Motor Bipolar 30Nm" is enough for this application?

What do you think about 15-20 lbs at 5.3 inches out from center? Would that be 1700 oz inch? Thanks

Building out a robotics workshop and have limited space, after painting and sorting out power, my first step is going to be a "z-table" made of 4 lift columns (lead/ball screw driven) -- I found some pretty hefty NEMA 23 size steppers that I'm planning to run each column, continuous torque is 58 oz-in at 75V, but it keeps some pretty nice cont. torque at lower voltages also. The max load on the table would be ~100lbs, stroke length about 24 inches - does this application seem reasonable?

My dude, not everyone in the world is American you know that right? I think you should add those values in metric, at least in the editing process. It's really frustrating to pause the video to convert those really weird values into metric. That way you might have a bigger audience. Other than that I think you do a very good job of explaning stuff. For that reason I have a few questions for you. I have a CNC router project that I am planning at the moment. Working area will be about 1 meters on X axis and 2 meters on the Y axis (3-4 feet to 6-7 feet). For movement on the X and Y axis belts and pulleys will be used, for Z axis I'm thinking of a ball screw setup. I will be using this system for wood and aluminum machining and nothing more denser. I have 4 options as a spindle: a 0.9kW 24000 RPM AC Spindle, 1.1kW 18000 RPM AC Spindle, 1.4kW 24000 RPM AC Spindle or a 1.5kW 12000 RPM AC Spindle. They all use big external motor drivers. As stepper motors I plan to use 57hs22 model NEMA 23s which have about 2.2 N/m of tourqe. I think the one in the video is the exact same one. All the structure will be built with sigma aluminum profiles. My questions are: 1) Which spindle should I choose for a very good aluminum experience. 2) Does more RPM mean cleaner cuts? 3) Will these stepper motors will be enough? And if yes how many should I use for a balanced fast and strong machine? So sorry for the novel that I left here but if you at least give me some answers I will be greatefull. Greetings from somewhere between Europe and Asia.

Hi teacher . Please, how intense (A )should the drive be in relation to the motor nema 34 JK86HS155-6204 for more torqe

does the torque rating refer to maximum output on an intermittent basis or is it a maximum continuous rating?

Nice video as always. I see from the tracking my first package is waiting on me at the post office. My wife was picking the kids up at the bus stop when they tried to deliver. How long do you think it'll be before the motors come in?

How much can the little guy lift?

I'm building a giant 3d concrete printer... What step motor you recomend me if i'm moving 200 kg ?

I have heard that using smaller motors results in more torque at higher speeds because of lower inductance. Is this true? I look at torque charts and do indeed see how nema 32's drop off quicker than nema 23's, but at 1000 rpm's, the 32 still has more torque. This idea seems to be repeated a lot on CNC forums. Any idea?

i have a motor almost same that size panasonic brand how can i run this motor stepper motor 4 wires

Hi Vince, i found your video very interesting as all the videos you make. I have extended my 6040 on X axis up to 850mm travel so what i ask is, the original Nema 23 270 oz-in 3A will handle the extra travel or shall i go for Nema 23 425 oz-in 3A or even the Nema 23 435 oz-in 4.2A + it's driver ? Thank you again for your time. Kind regards, John.

I am building a injection molding Machine for my college project. The screw used has 25mm diameter and 400mm length. So this screw will be used for melting plastic granules. I don't know how much torque motor should I use. Please help me out

I have a name 34 I got 6 of them I just need to know what drivers I need and power supply

hi i am thinking of building a epoxy granite plasma cutter 8 x 4 what stepper would u recommend for this project manly worryed about the y axis also so would you use a lead screw or a rack and pinion thanks

can u suggest me a motor having torque above 540 mNm

Hi I am building a robot for my school project. The robot is required to move along any type of uneven sidewalk. The motors we currently have are not enough for the robot to move over anything. Can you recommend some motors that are capable of moving along uneven pavement?

Hey bud, this big motor, standing upright, can this turn a 250lb person left or right with no problems? I'm looking to build a motorized platform and connect to a Arduino UNO to control it. I say 250lb as a max load. Thanks for any reply.

is there any shorter version of that NEMA 34 size?

Do you think a stepper motor is a good idea to use for a robot arm base?

Thanks for the video, very helpful. Quick question for you, I'm setting up a linear slide system that will initially be actuated via a hand crank handle. The customer wants the option to motorize the slide in the future. Trying to decide on the right motor to use to essentially mimic the hand crank, with around the same speed of travel. What size motor would you recommend for this application? Thank you so much

Can stepper motor rotate clockwise and counterclockwise when programmed? And can I use arduino uno to control it?

Hi please tell me what kind of motor is used in motorised screen upto 8ft..Thank you

Cant wait to try a dd wheel haha

If I want a stepper motor to rotate a 30 lb shaft, how do I determine how much torque is required to do so? Can't seem to understand what equation or even what exact variables I need to solve this problem. I need to buy a motor but I want to know exactly what I need so I don't overspend.

can you suggest motor for driving robot with a lot of equipment on it (lets say around 15kg)

Guys underestimate the power of these motors. They look at the physical size and think they look too small. So they usually go too big out of fear of going to small. That 1700 oz. motor is a monster. Whatever you attach it to needs to be idiot proof.