In my 18 years of experience in cnc conversions, my opinion is: It's always much better be over than under powered specially when it comes to stepper motors which have no position feedback and missing steps ruins parts!
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.
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!
Brute4rce, thank you for your support. I greatly appreciate it. I try to breakdown just how powerful a stepper is to make sure they never over purchase. Thank you again, Vince
@@corvetteguy50 I keep seeing these great concrete 3D printer projects, but I haven't seen build details anywhere. Considering the small houses they're building are always charity projects, it's a bit odd that there are no printer build instructions in the public domain. Do you see any problems using a NEMA 42 or 34 in a geared rotary-type printer with an aluminum arm that telescopes, say, ten feet from the center? On second thought, now that I've written it out like this, I suppose the math is straightforward. Just the same, have you happen to have seen any information on the internals of those enormous printer builds? Thanks for any guidance.
@@Chocolatchips , Thank you for your support. I believe those printers are strictly proprietary to the manufactures of them. This is of course not to say they can't be replicated, but the engineering is required to be done by the end user of the project. A Nema 42 gear reduced motor would be the only possible solution for such a robot, or custom made motor. Large scale production robots like these take ample amounts of engineering knowledge, and money to accomplish, which discourages many of them. Thank you Vince
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.
Hey Gary, thank you for your support, and your exactly right. Steppers oz/in per IN/LB are very strong, and most end users really overestimate their requirements . Thank you, Vince
Mr. Santiago thank you for your support. The load your wanting to rotate would require a Nema 42 with at least 2800oz/in motor for maximum stability for that application. Thank you, Vince
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
rushikesh 29 thank you for your support. I really appreciate it. My contact information is in the video description. Please be safe, and have a great weekend! Vince
Abo, thank you for your support. The motor you would require is a Nema 34 standard. I carry one with the proper amount of torque you'll require. Please email me from the video's description for pricing. Thank you, Vince
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.
elrohirtinuviel, thank you for your support, and I apologize for my ignorance in forgetting the translations from imperial to metric. The answer to your questions are as follows. The first recommendation I would make is to utilize ball screws on all axis of the system as belts, and pulleys are not the best option for robots machining aluminum. Here's a video overview I made on transmissions. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-pdFNqGY3h94.html Which spindle should I choose for a very good aluminum experience. A 2.2Kw (3HP) is the best option for soft metal substrates, along with woods, plastics, carbon, and composites. 2) Does more RPM mean cleaner cuts? This questions has many variables, and what it all comes down to is the substrates your cutting, and the endmills your using. If your RPM is high with certain substrates you will risk melting them rather than cutting them (plastics, and composites) 3) Will these stepper motors will be enough? I recommend a minimum of 2.8N/m motor for machining aluminum, and all softer substrates. My 4.3N/m motors provide the maximum torque for these substrates. And if yes how many should I use for a balanced fast and strong machine? You would require your Y axis to utilize a slave configuration using two motors. One on each side of the Y axis. This will assure maximum equilibrium. Thank you again, Vince
Thank you for your support. Please contact me directly for a consultation as this would require engineering to give you a proper size matched with the proper gearbox, and transmission. Thank you, Vince
AsilarWindsailor, thank you for your support. These motors are designed for robotics, so your in the right place. have a great weekend, and please be safe. Thank you, Vince
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
Hey Sam, thank you for your support. For your torque application requirement you would need a Nema 52 motor which may not work for your project due to its massive size, and weight. 50 Newton meters equals 442.5 in/lbs of torque. Thank you, and a have a great weekend! Vince
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.
Balogun, thank you for your support. A 500+lb. gantry is only the units weight, but it will be mounted on bearings which will be supporting the load, so the actual force required to move the gantry is much less depending on the quality of bearings. Genuine HiWin is the best. I would recommend my Nema 23, or Nema 34 depending on the length of your chassis. Please tell me, and I'll direct you to the motor. Thank you, Vince
@@corvetteguy50 Thanks for your response. The length of the chassis is 8 meters. Is possible for me to use stepper motors for this machine without gearbox or pully? If yes what size of motor should I use? Kindly direct me to the motor. Thanks for your support.
No you would require a gear box for acceleration on a chassis that size. I would recommend a Nema 34 do to your chassis length to allow the torque produced from it to allow for higher rapids. Unfortunately their are tom many variables to just recommend one for you without covering the details in your chassis. Please contact me via email to discuss engineering consultation. Thank you, Vince
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
Dev, Thank you for your support. I really appreciate it. Here's my comparison video I've already done on the servo verse stepper debate. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Exk7ORteS0o.html Thank you, Vince
sparkeydave, thank you for your support. Steppers are designed for low end torque that bleeds away quickly at higher RPM's making their applications best suited for robotic automation. Thank you again, and have a great weekend! Vince
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
Eclipse, Thank you for your support. A Nema 23 is easily capable of machining aluminum. I designed my 600oz/in Nema 23's for metals, and softer substrates. Here's Nema 23's machining aluminum. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-LLHbzmXAPps.html Spindle size does matter, but effects your feed rate variable the most as it has to keep up with the motors motion to provide smooth cutting. Think in terms of a Dremel tool which can cut steel, but must move very slow to do it properly, so the tool will actually cut it. A well balanced system is key. A 2.2Kw (3HP) spindle is optimal for optimal feed rates. The motors you use should be as strong as possible in a Nema 23 frame. Thank you, and have a great Labor Day weekend! Vince
corvetteguy50 // so you mean i need to lower the speed of spindle to get accurate cut and more torque as the torque inversely proportional with the rpm .. my last question is if the 800w spindle 1hp is the only spindle available for now is that ok to mill aluminum as a beginning
@@yasirh2004 No you'll need to lower the feed rate of the systems axis, so the spindle can keep up with the cutting required. 800W was used in the video link I sent you in the previous reply. Start with a slow feed rate with proper lubrication on your endmill, and you'll be fine. Thank you, and have a great Labor Day weekend! Vince
corvetteguy50 // never heard of feed rate before but after you told me that I searched for it and i’m totally understand what it means thank you very very very much really appreciate these answers 🙏🏻
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
Stepper motor's run on step, and direction signals for precision control. DC motors in a scooter aren't applicable to precision robotic applications. Thank you, Vince
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.
Thank you for your support. Its certainly possible depending on your budget, and time allowance. If you would like to setup an engineering consultation please email me. Thank you, Vince
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
n6y6h6, thank you for your support. I agree most don't realize how powerful Nema 23 motors actually are. The Nema 34's are really monsters, and will be put to good use on your Bridgeport. :) Thank you, Vince
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..
eimyatmyat, thank you for your support. The torque you require is 7080oz/in which a stepper motor isn't able to be produced by one without it using a planetary gear box. Using a PGB will however slow the RPM of the motor down, so if that's a factor for your application you'll require another motor for your solution. Thank you, Vince
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?
Chris, thank you for your support. They may work, but optimally you would be better with my 600oz (37.5in/lb) motors www.ebay.com/itm/142172266617 for that sized mill. Thank you, and have a great weekend! Vince
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.
Hayden, thank you for your support. I really appreciate it. Unfortunately for your application a stepper motor wouldn't be able to do it as their not designed for that high of RPM. You would require a regular A/C motor for this application. Thank you, Vince
Shoaib, thank you for your support. Holding torque is the torque rating that will stall the motor if exceeded. Normal running torque is anything the motor produces under this rating as that's considered usable torque. Thank you, Vince
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 ?
Falcon Eye Vision, thank you for your kind words, and support. There are many variables to make a recommendation for the motor size you'll require. I would first need to know the transmission you were planning on using if any. I would then need to know the weight of the sun shade, and all rotating components to make the correct decision on selecting the motor to handle these variables. I offer engineering consultations for an in depth look at projects like this, and product designs. Contact me at my email address for pricing. Thank you, Vince
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
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
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
Hey Brent, Thank you for your support. Unfortunately when it comes to engineering seldom are things easy when dealing with measurement accuracy. There are designs on RU-vid, but the accuracy is based on the equipment, and the knowledge of the end user performing the measurements. Thank you, Vince
Thank you for your support. You'll need to talk to your motor supplier to answer this questions as its based on specific motors torque curve with matched power supply. Thank you, and have a great weekend! Vince
Thank you for your support. This can't be calculated without knowing the transmission you're using in conjunction with the motor. If you're planning on using the motor as a stand alone unit without a transmission I offer consultations to match the correct stepper to your application. Please email me at Storm2313@gmail.com for a quote. Thank you, Vince
Thank you for your support. Its impossible to know as you have missing variables like transmission used if any, and the Khz frequency the drivers are running that are sending it step, and direction signals. Thank you, and have a great weekend! Vince
Thank you for your support. I need to know more details than that to provide information. Please contact me to setup a consultation on your retrofit project. Thank you, Vince
@@corvetteguy50 thank you for your reply bro..🙏🏽🙏🏽👉🏿my knowledge abaout this is 0=bad👉🏿stiker stepper👉🏿EM-242 , STH-39H1012 , and 2793DG mostly..youtube content is about 'stepper as generator' no stepper as a drill/mini drill😁i think is gonna be powerfull ( correct me if wrong),the point is to make 'high speed' with stepper, can it be made? (simple way not complicated way😁) nb: apologize about my english🙏🏽thank's bro..🙏🏽🙏🏽
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 ?
Thank you for your support. It may help, but usually missed steps are do to EMI, and overdriving the motor out of their operating envelope. Reducing the motors speed would help with this as well. Thank you, and have a Happy safe New Year! Vince
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
Berty, thank you for your support. Who did you purchase the motors from? The vendor you purchased from should have matched their torque to your application pending you explained it to them. Thank you, Vince
Sushi, thank you for your support. The 18.9 Kg-cm motor won't lift your screen. You would require a 1700oz/in -2000oz/in motor. This would be a Nema 34 standard. Thank you, Vince
Minahil, thank you for your support. The load rating is based on the motors holding torque which is arbitrary in your question. Please provide the holding torque for the motor, and I can answer the question. Thank you, Vince
sorry to disturbed you.I want to know weight in kg that bipolar motor of torque 816N.cm can lift up and down.your provided link is the conversion of torque.it does not tell weight lifting capability of NEMA34
Yatra, thank you for your support. The measurement Kg/cm is simply the unit of measure the manufacturer is choosing to provide the motors measured to torque in. This measurement is based on the position discussed in the video. Thank you, and have a great weekend! Vince
Tina, thank you for your support. I suggest removing, or reviewing the one installed in the machine to know its current size, and ratings so you then would know the size you require to replace it with. You can then get the same size motor with more torque for faster production. Thank you, and please be safe. Vince
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.
Mohanraj, thank you for your support. In order to answer that question I would need to know the weight of the turret, and the transmission its using to recommend a proper motor for it. Thank you, Vince
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.
Varun, Thank you fro your support. Your application would require my Nema 23 600oz motor as it produces 3.5in/lbs of torque. If your adding a a worm gear for gear reduction the motor will produce even more torque, but reduce its available rotational speed. Thank you, Vince
Grimblina, thank you for your support. Unfortunately the answer isn't a simple one as I would have to go over the engineering of the design with its transmission to calculate the required motors. I offer engineering consultations for projects of this caliber. If you're interested in scheduling one please contact me. Have a great weekend! Vince
I always explain to my clients please take all the time you need, and if this is a project for resale then the investment may be worth it depending on your ROI. If its a one off type it may not be. Have a great weekend! Vince
Hello. I want to make a solar tracking system(single axis)using a photovoltaic panel of size 760X680X30mm. I am thinking of creating a frame in the shape of the letter "X" in the middle of which I will weld a 15-20 cm long pipe to connect to the motor axe,everything should be around 8kg.Which kind of motor do you think would suit my application? Could nema23 with an gearbox with 1:50 ratio handle it? Thank you.
Thank you for your support. Unfortunately there are far to many details missing before I can answer that. Please schedule an engineering consultation if you would like to move forward on the project. My information is listed in the video's description. Thank you, Vince
Om, thank you for your support. If the gearing is done properly with the correct sized stepper you certainly could use one for this application. Thank you, Vince
Hey Noah, thank you for your support. A stepper motor's load is based on the axis rotating. You would be fine in using them if they have the appropriate torque required for your application. Thank you, Vince
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
Thank you for your support. Please contact me at Storm2313@gmail.com for a consultation as there's far to many variables to answer your question without knowing them all. Thank you, Vince
Thank you for your support. Yes, a Nema 23 can use a gearbox, but for that torque a Nema 34 would be better with a gearbox to produce that amount of force. You can message me for a consultation at Storm2313@gmail.com for a solution. Thank you, Vince
No, as both motors are used together with the same stall torque meaning f you exceed one motor's torque the other is exceeded as well You would require larger motors. Thank you, Vince
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.
Thank you for your support. You don't need Nema 34 motors for that size chassis. You should be using Nema 23's. I recommend using the motors by themselves with a ball screw transmission. If you need more support please contact me to setup a consultation. Thank you, Vince
@corvetteguy50 Thank you a lot for your reply. I have already bought the stepper motors, and I'm using a gear rack to move the axis along. I choose the nema 34 as they are closed loop motors, and i have found your video too late. I can't send them back now, so i have to use them. Firstly, i taught i need a gear reduction for them as they are really powerful.
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?
Jose, Thank you for your support. I don't recommend stepper motors for scooters as their designed around low end torque. Your better off using a DC motor for this application. Thank you, you, and your family please be safe. Vince
Thank you for your support. A router will perform best setup with Nema 34 motors in the configuration you explained, and I do offer Nema 23 to Nema 34 motor adapter plates. www.ebay.com/itm/144041412523 Thank you, Vince
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?
Sathvik, thank you for your support. The motor requirement for your application is based on the loads weight the you'll be lifting/moving. Thank you, and please be safe. Vince
if you ran two together it might be possible if the transmission, and mount you were using could support the load. My initial response is for a single motor. Thank you, Vince
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?
Ofir, thank you for your support. The most common solution is to purchase a gear with a bore of 6.35mm, and open it up to 8mm with a drill, or a lathe pending it has enough material available which most do. Thank you, Vince
Amellia. thank you for your support. The lift capacity of a stepper is based on two variables the transmission, and the gearing being used. The 300oz/in stepper in the video is capable of producing 18.5in/lbs of torque. Thank you, and Merry Christmas! Vince
Hey Rob, thank you for your support. The difference in the two motor's torque is 9.75in/lbs, so it would make a difference, but I still would recommend going over the axis giving you issues for other mechanical problems to assure its motor torque causing the issue. Thank you, Vince
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
Dude thank you for your support. I really appreciate it. I can't provide a required torque for the motor without knowing what load it will be under. Please quantify it, and I'll select a motor for the application Thank you, Vince
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-R_cuHrl6NaY.html This is the machine i inspired from Can you say which type of motor and specifications of his motor in video Please please help me
@@masteradvisor594 I apologize for the late reply. The video link you sent doesn't reflect the size of the motor, but if that's the size of the machine you'll be making my 600oz Nema 23 would be fine www.ebay.com/itm/142172266617. Thank you, Vince
Thanks brother. You make my day. I was so pissed in searching the correct motor. I am studying in college. And I am studying plastic engineering. The link I sent you, i am going to make same machine for my college project. That's why I asked you. You are the one who replied me. Thanks once again
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?
Adriana, I'm sorry their are tom many missing variables to give you a motor size. I would need to know the weight of the robot, and the transmission you plan on using. thank you, and have a great weekend! Vince
The weight is between 15-20 pounds and we are using a raspberrypi to collect the data we collect and there are four stepper motors for the four wheels we have .
The current of your motor is provided by its manufacturer, and if you didn't purchase it from them directly then the vendor you purchased it from. Thank you, Vince
Prasad, Thank you for your support I really appreciate it. I need to know what substrate your surface grinding, and the the transmission your machine uses that you intend to do this with to answer your question. Thank you, Vince
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?
Digital, thank you for your support. the thing to keep in mind is steppers are designed for low end torque, and not speed. I see this discussed all over forums. The truth is if you use a stepper with more torque the more it has a buffer to move a load at a higher speed. This is because the motor has an extra surplus of torque available. Inductance is a technical term to say electrical resistance, and forum guys preach this everywhere. You should never be selecting a motor just by its inductance, but rather the transmission its supporting as its what actually provides the speed of the system. Thank you, Vince
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?
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?
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
Stephen, thank you for your support. A stepper motor for a plasma system is generally no larger that 400oz/in as there's no load on the cutter. I highly recommend a ball screw transmission over a R&P as its much more precise, and virtually maintenance free. Thank you, Vince
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?
Sirius A, thank you for your support. I believe you listed the Nema 23 motor toque you're using incorrectly. Please correct it, and I'll give you some feedback. Thank you, Vince
HI SIR THANK YOU FOR THIS AMAZING INTERESTING VIDEO? IT REALLY HELPS ALOT; WELL I WANNA ASK YOU WHAT KIND OF MOTOR I SHOULD USE TO ROTATE A 150 KG PARABOLIC DISH? AND THANK YOU
Abderrahman thank you for your support. The load your looking to rotate is 330lbs. You would require a gear reduced stepper with a transmission typically with a load that large. Thank you, Vince
You would want a Nema 42 with over 4000oz/in of torque and a gear reduction for that type of load as a 1700oz/in motor will only provide 100in/lbs. Thank you, Vince
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.
John, thank you for your support. Motor torque has nothing to do with table length. The torque of a motor dictates the machining capacity its able to handle while under load. If your using metal substrates for machining the larger motors are your best option. If your working around woods, and plastics the smaller motors will be fine. Thank you, an have a great weekend! Vince
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?
Hey Jacob, they will be shipping tomorrow as their scheduled for delivery today, and actually just came in as I'm typing this :). Thank you again for your support. Vince
PK, thank you for your support. Stepper motors are excellent for this application as long as their torque rating is correct for the desired application. Thank you, Vince
Thank you for replying and for your helpful videos! That is good to know, also will it allow the base to fully rotate (360 degrees)? (I’m very new to stepper motors)
@@PK-mh1ir Yes, they will. Here's a link to learn about them www.orientalmotor.com/stepper-motors/technology/stepper-motor-overview.html?gclid=Cj0KCQiAip-PBhDVARIsAPP2xc02OBAezfHYtWGMt2Blwzt6y0-TfGT7mLrLacss9QjXxpQTmMXssngaAhMXEALw_wcB Thank you, Vince
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.
Joshua, You didn't specify if your using a transmission that the motor will rotate to turn the shaft, or if your using direct drive? A 30 lb shaft would require a Nema 34 based on their available torque output. Thank you, Vince
A 30lb shaft which is rotated easily by up to 100in/lbs of torque using the video tutorial above. Your shaft's weight is only 30% of the rotational torque put out by my 1700oz. All Nema 34's put out roughly 80-100in/lbs of torque. Thank you, Vince
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.
Virtual, Thank you for your support. I really appreciate it. The Nema 34 with a gear reduction would be fine for that application as I have a few clients using motion control for simulators. Thank you again, Vince
@@corvetteguy50 Thanks for the quick reply, 1 more question which may be of help, I'm having someone coding to a Arduino to control the motor to my liking, would it be better to use a open loop motor or a closed loop motor for my project. Thanks again, and love the channel
@@Michael-hr5wf , for your application an open loop stepper is fine as they provide the same accuracy as a servo as reflected in this previous video I made here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Exk7ORteS0o.html Thank you, Vince
Mary Anne, thank you for your support. I really appreciate it. The answer to your question is yes a stepper can rotate in either direction pending the Arduino is programmed to make it do so. Thank you, and have a great weekend! Vince
@@corvetteguy50 thank you so much for answering sir. I have a follow up question though. Can you suggest what kind of stepper motor is suited if I plan on mounting it on a 0.5hp water pump? It's to change the aim direction of where the water will come out
@@maryannemacalinao8376 Here's the motor I recommend. www.ebay.com/itm/142172266617 Keep in mind the motor's aren't waterproof, so you want to make sure their isolated from moisture. Thank you, Vince
Rodrigo, Thank you for your support. I would contact the vendor of the motor for its diagram, and if they won't provide it this video will help you determine how to connect it. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FYYmuUJyPes.html Thank you, and please be safe. Vince
Azpra143, thank you for your support. I need to know the transmission your using in conjunction with the motor, and the weight of the screen. Thank you, Vince
@@corvetteguy50 Thank you so much for your reply. I wanna make retractable screen with 25mm curtain rod measuring approximately 8ft. I got to know from diy videos that the motor has to be high torque and low rpm which is a bit difficult to find the right one.. Or other options people told me is to get a dc motor convert it to ac and regulate the speeds.. Also I am not very familiar with the converter types and gears.. Kindly throw some light on these points.. Would appreciate any kind of info.. I know its not a forum but you seem to have very good way of explaining things easy enough for an novice in electronics like me to grasp.. Thank you again.
@@AziUnderwater a Nema 23 300oz/in motor will provide 18.75in/lbs of torque, which is perfect for your application as the screen your lifting with rod is 3.5lbs Thank you, Vince
@@corvetteguy50 also, if it is not a lot to ask , what would be the maximum rpm of such motor. Because I want the robot to move at reasonable speed (10-15km\h or even more) and does the motor accelerate fast ?Thanks!
@@ivankolev5279 Steppers aren't designed for speed, their designed for torque. If you want speed incorporate a gear transmission, and you can have it accelerate to high RPM efficiently. Thank you, Vince
