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CNC Router Build #2 - Stepper Motors 

John Ward
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Part 2 in a series on building a CNC router.
This episode covers the stepper motors, how they will be wired and extending the supplied wires with CY cable.
Other videos in this series: • CNC Router Build
Website: xo4.uk/?cn2
Contact info, sending stuff in etc.: xo4.uk/?YTT
Support this channel at Patreon: / jwflame
Twitter: / jwflame
Facebook: / jwflame
Instagram: / jwflame

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26 авг 2024

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Комментарии : 71   
@wilbertbirdner1303
@wilbertbirdner1303 7 лет назад
I appreciate your good workmanship there. Seems to be difficult these days to find people willing to spend the time to do things the right way and take pride in their work.
@Ray-ej3jb
@Ray-ej3jb 5 лет назад
Really!!! It's just look for a Proper British electrician about 45 years old
@jseneque
@jseneque 6 лет назад
I have very little experience in electronics but there was so many gems/tips you provided that I can carry on to any projects. Thank you
@KarlAdamsAudio
@KarlAdamsAudio 7 лет назад
Really appreciate this video series - my Father and I are building a CNC router based on many of the same/similar parts, and this promises to be a great resource on how to 'do it properly' - as we all know JW will.
@texasbowhunter2509
@texasbowhunter2509 2 года назад
Yes Sir Very Informative video I appreciate you taking each step and showing what you are about to do then the execution of the process Thank You for That Keep up the Great informative Videos
@joerharris
@joerharris 7 лет назад
"Much quicker than expected" - love it!
@leer9951
@leer9951 7 лет назад
A very interesting and informative video as usual. I'm looking forward to the next one. Keep up the good work.
@koffibanan3099
@koffibanan3099 7 лет назад
Very neat and tidy! Thanks for the videos detailing the process!
@GadgetAddict
@GadgetAddict 7 лет назад
Looking good. It's all coming together quite quickly.
@1pcfred
@1pcfred 7 лет назад
Very fancy. I made my motor cables out of wire I got out of a bunch of surplus IEC power cords. I had so many of those power cords laying around.
@markgoggin3677
@markgoggin3677 7 лет назад
Thank you John for all your videos, they have helped me immensely. I actually want to make a cnc , and I have faith that yours will be perfect. Could I kindly ask what is the total cost. I've just seen a reply that you will put all the details in a later video. Thank you again for your time, and sharing your true expertise.
@sdttnkara
@sdttnkara 7 лет назад
You can put bakelite thumb nut at the other end of the shaft of the motor so you can manually control your routers axises easily.
@andreim841
@andreim841 7 лет назад
I think I speak for a lot of people here when I ask : are you going to play that piano for us? 😁
@MariaEngstrom
@MariaEngstrom 7 лет назад
It kinda looks like a Hammond organ.
@ianharrison6597
@ianharrison6597 7 лет назад
We've all been waiting so long. Perhaps Photoninduction will appear as guest keyboard player.
@asgharrezaei0138
@asgharrezaei0138 6 лет назад
Thank you , so nice and perfect
@mrAudisubaru
@mrAudisubaru 7 лет назад
i like thw attention to the details it"s a nice build
@TheSadButMadLad
@TheSadButMadLad 7 лет назад
You're definitely a quick worker!
@shehbazmalik1577
@shehbazmalik1577 2 года назад
Hello John, can I use wago style connectors to bridge the cables? I'll put shielding in the motor cables, and use 5th connector to bridge the shielding. I hope it's correct
@TheDutyPaid
@TheDutyPaid 7 лет назад
I find spray glue very good for holding work down.
@malinsg1
@malinsg1 7 лет назад
Just figured a thing,you are the opposite of Photonicinduction.
@Coolkeys2009
@Coolkeys2009 7 лет назад
I'm not so sure, John Ward occasionally tests stuff to destruction(for safety purposes of course).
@stuartwooldridge1551
@stuartwooldridge1551 7 лет назад
Both are good channels. This one is more 240V than 30kV.
@paulmorrey733
@paulmorrey733 7 лет назад
Great video - very neat wiring Thanks
@rimmersbryggeri
@rimmersbryggeri 7 лет назад
Why not just replace th provided wire alltogether rather than splicing them together. Shouldnt be so hard and you geta cable that is sheilded all the way or at least use the linesman splice which is neater and stronger.
@remigarage3693
@remigarage3693 5 лет назад
Best of the best. Thanks so much 😎😁
@JasperJanssen
@JasperJanssen 7 лет назад
You're gonna need really good rigid fixation of the cable and the motor, to avoid that serious weak spot where the (relatively rigid) cable goes into the motor.
@____________________________.x
Don't use heatshrink for that last section, use PVC braid and rubber sleeving . That's the wrong cable, use shielded twisted wire. Don't cut the earth wire short, leave it in. Add common mode ferrites at both ends.
@MrMooseSlayer
@MrMooseSlayer 5 лет назад
Agreed. At the very least, the copper tape on the motor end of the shield braid would be safer using electrical tape to secure it away from the motor casing. If the shield makes a connection with the motor casing and the cabinet end is terminated to earth ground, ground-loop circulating currents are possible and most undesirable.
@perspectivex
@perspectivex 4 года назад
What kind of cable would you suggest instead of this "CY" cable (e.g. provide a link to an example product)? In general there are not many recommendations for the wiring used to connect steppers to the controllers, d.i.y. people seem to use just whatever they can find.
@____________________________.x
@____________________________.x 4 года назад
@@perspectivex From a quick look Belden 9552 looks ideal? 18awg (16A), voltage rating higher than the 72v you'd ever see on a stepper, nice shielding. John's really just using what he has on the shelf here, which is the main issue with people larping on youtube, only industry does it properly. The twisted cable is for EM fields, the pvc braid is avoiding a stiff connection, the earth shielding and wire has to extend the full length of the cable and terminate right before the end. None of this is essential, but it's what you might see on say an industrial robot and it's good practice
@perspectivex
@perspectivex 4 года назад
​@@____________________________.x thanks a lot for the valuable cabling info. I can't find Belden 9552 in lengths less than several hundred meters (like il.farnell.com/belden/9552-0601000/shld-multipair-2-pair-18awg-1000ft/dp/2846661) but I guess then any shielded twisted pair 18AWG should work? I'm having a hard time finding any although I found some on AliExpress; www.aliexpress.com/af/twisted-pair-wire--18awg.html but it's super expensive, at least $5-7/meter. I'll have to keep looking.
@BenM0
@BenM0 7 лет назад
Hello dear John can you tell me which ballscrew and guide rail size do you use? and can you use this setup machine for milling aluminum ? i mention for your choosing stepper motor which has 4 nm torque...is it enough for milling aluminum? thank you so much for sharing your experience.
@ronaldcheeseman167
@ronaldcheeseman167 5 лет назад
John can you tell me what software I need to make any machine run, that I plan to build, for an open build CNC, I am using the CNC machine for building Govt, drones molds can you tell me what I would need to complete this as far as software, great job always.
@torq7280
@torq7280 6 лет назад
can we use this machine for 3D work and for large production as heavy duty???
@ryanchenoweth5673
@ryanchenoweth5673 7 лет назад
Perfect John 👌
@malinsg1
@malinsg1 7 лет назад
Really tidy and well thought.if i wore a hat,i would tip it to you
@srishtygardenresorts705
@srishtygardenresorts705 6 лет назад
thanks a lot
@Obsidianiron
@Obsidianiron 7 лет назад
I'm surprised there is no mechanical protection of the wires going into the stepper motor.
@AndyTaylor_Paintguy
@AndyTaylor_Paintguy 7 лет назад
I was just about to say the same. The lack of provision for any kind of strain relief is a little concerning. Especially with such a heavy shielded cable now being joined to it
@UberAlphaSirus
@UberAlphaSirus 7 лет назад
Once they are on the machine, they won't need it.
@stefantrethan
@stefantrethan 7 лет назад
The cable must be fixed to the machine anyway, allowing any motion/flexing on a soldered joint invites failure. You could bolt a PCB, bracket, or a small junction box to the end of the motor providing proper strain relief if there was no other way to fix the cable. There are motors that come with a JST plug at the motor instead, at least for the smaller sizes. You can just crimp a plug on your own cable, it makes for a very neat solution.
@DJJeroen1000
@DJJeroen1000 7 лет назад
Hi John, you use shielded cables but it is not electrically shielded. Common mistake, the reason is that the shielding should be connected to the chassis at both ends of the cable, all around the inner conductor, so no pigtails. Here is a nice simulation showing the effect of a shield connected only at one side, through one or more pigtails and the correct full around connection: www.rfemcdevelopment.eu/lv/emc-basics/emc-blog/147-emc-pigtail You can reduce the need for shielded cables by applying snubber networks to the end stage circuit and installing a lowpass filter and common mode choke on the output. It is better to prevent than trying to fight it.
@____________________________.x
I thought that grounding the second end would require an RF choke?
@thiscommentwasposted262
@thiscommentwasposted262 4 года назад
This video doubles as an ASMR VIDEO.
@torq7280
@torq7280 6 лет назад
which CAM is used ??
@srishtygardenresorts705
@srishtygardenresorts705 6 лет назад
hey i have a stepper motor i have connected it to arduino uno r3 with a l298n driver but when i catch the shaft the stepper motor stops rotating i wonder then how do this stepper motor lift a good load is all stepper motors is like this or my stepper has any problem i am asking it because i am having a robotic arm project which requires to lift a load of 3 kg please replay thanks
@jwflame
@jwflame 6 лет назад
Lack of drive torque will due due to insufficient drive current or the wrong voltage - the current and voltage of the driver must be properly matched to the stepper motor you are using.
@twig3288
@twig3288 6 лет назад
can you provide some info on the heat gun used in the video. Is it mains powered?
@jwflame
@jwflame 6 лет назад
Yes, mains powered. All details of it are covered in this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ycdOayVSTB4.html
@dogastus
@dogastus 7 лет назад
Did you get all the CNC parts from cnc4you? If not, can you provide details of the other suppliers you used?
@jwflame
@jwflame 7 лет назад
No, only the motors were purchased from them. I'll do a list of all the suppliers in a later video. Actual parts are covered in part 1.
@cp_guitars
@cp_guitars 6 лет назад
Does the cable shield not need to be tied to the motor chassis to be effective? I thought a shield needs terminated on both ends to effectively make a Faraday cage.
@____________________________.x
Just at the source end, otherwise you could get a potential ground loop. It depends on the application, like audio would be grounded both ends
@just5444
@just5444 7 лет назад
Man įdomu, kiek lietuvių yra užsiprenumeravę ši kanalą??
@A_S_M_R
@A_S_M_R 6 лет назад
Who is in the urn?
@timwelch175
@timwelch175 5 лет назад
Higher Voltage Vs. Higher AMP draw = much less heat, and much more economical.
@peterfixit7221
@peterfixit7221 7 лет назад
i would have taken the motor apart and soldered the black cables directly to where the cables are soldered to
@jwflame
@jwflame 7 лет назад
If you take a stepper motor apart, it disrupts the magnets inside and it won't work properly ever again..
@peterfixit7221
@peterfixit7221 7 лет назад
i didnt know that, thanks
@1pcfred
@1pcfred 7 лет назад
It would be nice if stepper motors had solder lugs instead of leads. Taking stepper motors apart is not advised though.
@stefantrethan
@stefantrethan 7 лет назад
That's a bit of a myth, someone did a video comparing the strength and there was no difference. If you are still worried you could keep the rotor inside and just take the end cap off. It's only two volts John, I think that shielding is a bit overkill, especially the copper tape ;-).
@1pcfred
@1pcfred 7 лет назад
stefantrethan You don't think he is going to run the motor at 2 volts, do you? PWM stepper drives are constant current, so you have torque at high RPM. So it is typical to run motors at 24 to 80 Volts. Now as far as any video goes that's one video, and there's lots of different kinds of stepper motors. They may look the same on the outside, but it is what is inside that matters.
@Yaaayishere
@Yaaayishere 7 лет назад
Are you being sponsored by CNC4YOU ?
@jwflame
@jwflame 7 лет назад
No, that's just where the motors were purchased from. I don't do sponsored videos.
@Yaaayishere
@Yaaayishere 7 лет назад
Good to know, thanks.
@VelvetCondoms
@VelvetCondoms 7 лет назад
Good. That means we know you're an objective evaluator. We appreciate that.
@aurthorthing7403
@aurthorthing7403 7 лет назад
I suggest you build a decibel meter so you can tell when you are mumbling.
@TheRealPapasmurph
@TheRealPapasmurph Год назад
Not mumbling, just the accent and phrasing from that part of England.
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