Annoying stepper's sound
12 Oct 2016 23:03 - 12 Oct 2016 23:04 #81593
by Marfil
Annoying stepper's sound was created by Marfil
Hi. Ones again.
In my router, I have a very high sound- It is a variable frecuency and It is very annoying.
I think that is from stepper but I'm not sure.
Anybody have any suggestion / advice to reduce it?
The steppers are from China.
Thanks in advance.
In my router, I have a very high sound- It is a variable frecuency and It is very annoying.
I think that is from stepper but I'm not sure.
Anybody have any suggestion / advice to reduce it?
The steppers are from China.
Thanks in advance.
Last edit: 12 Oct 2016 23:04 by Marfil.
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- tommylight
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13 Oct 2016 00:35 #81594
by tommylight
Replied by tommylight on topic Annoying stepper's sound
You can use these to dampen the sound and vibrations, i use plenty of those.
www.ebay.com/sch/i.html?_from=R40&_trksi...otor+Damper&_sacat=0
www.3dp2go.com/stepper-motor-damper-for-...per-motor-p-343.html
They will not totally remove the noise and vibrations, but they will make everything a lot quieter and more pleasing to the ear.
www.ebay.com/sch/i.html?_from=R40&_trksi...otor+Damper&_sacat=0
www.3dp2go.com/stepper-motor-damper-for-...per-motor-p-343.html
They will not totally remove the noise and vibrations, but they will make everything a lot quieter and more pleasing to the ear.
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13 Oct 2016 14:35 #81608
by Marfil
Thanks Tommylight !!! It is an excellent suggestion.
Now, regarding the variable audio frecuency sound; it is helpful this motor damper? this sound is all the time, and is more evident when the stepper not rotate. Really is very annoying.
Thanks for your answer.
Replied by Marfil on topic Annoying stepper's sound
You can use these to dampen the sound and vibrations, i use plenty of those.
They will not totally remove the noise and vibrations, but they will make everything a lot quieter and more pleasing to the ear.
Thanks Tommylight !!! It is an excellent suggestion.
Now, regarding the variable audio frecuency sound; it is helpful this motor damper? this sound is all the time, and is more evident when the stepper not rotate. Really is very annoying.
Thanks for your answer.
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13 Oct 2016 16:26 #81614
by tommylight
Replied by tommylight on topic Annoying stepper's sound
That is the noise produced by the drive PWM current limiting so here are some tips:
Try a different power supply, cheap power supplies produce way to much ripple.
Adding 220 to 470uf capacitors directly to each drives power terminals should lower or completely get rid of that noise.
As a side note, the TB6xxx series drives will need also some 0.1 to 0.47 uf capacitors in parallel with power supply, or even betteter said capacitor should be added inside the drives connected between ground and the "VRef" input to IC.
Try a different power supply, cheap power supplies produce way to much ripple.
Adding 220 to 470uf capacitors directly to each drives power terminals should lower or completely get rid of that noise.
As a side note, the TB6xxx series drives will need also some 0.1 to 0.47 uf capacitors in parallel with power supply, or even betteter said capacitor should be added inside the drives connected between ground and the "VRef" input to IC.
The following user(s) said Thank You: Marfil
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14 Oct 2016 01:17 #81630
by Marfil
Thanks Tommylight, I understand all your suggestion. I'll open the drivers box and I'll analyse the electrical circuit. As I told you is an "almost home made" router.
Thanks. a lot.
Replied by Marfil on topic Annoying stepper's sound
That is the noise produced by the drive PWM current limiting so here are some tips:
Try a different power supply, cheap power supplies produce way to much ripple.
Adding 220 to 470uf capacitors directly to each drives power terminals should lower or completely get rid of that noise.
As a side note, the TB6xxx series drives will need also some 0.1 to 0.47 uf capacitors in parallel with power supply, or even betteter said capacitor should be added inside the drives connected between ground and the "VRef" input to IC.
Thanks Tommylight, I understand all your suggestion. I'll open the drivers box and I'll analyse the electrical circuit. As I told you is an "almost home made" router.
Thanks. a lot.
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14 Oct 2016 01:43 #81631
by tommylight
Replied by tommylight on topic Annoying stepper's sound
Opening the drives is a last resort, you have plenty to test with without opening them. Do test at the exact order i wrote them above. Chances are you will get satisfying results before reaching the "open the drive" point.
Opening them would require good knowledge of electronic and schematics and soldering skills, or the magic smoke will escape from them !![:) :)](/media/kunena/emoticons/smile.png)
Anyway you decide to go, i will be here to help, just do not hope you will completely get rid of it, you won't.
FYI, i never did try to remove that noise, i just like it and it reminds me that one of machines in ON. I can hear even some connected to some high tech stepper drives made by LAM Technologies, as they are de facto the best drives i had in my lifetime. I have used plenty of the DS series, have a look
www.lamtechnologies.com/Resources/Doc/DS10_BRUK.pdf
Opening them would require good knowledge of electronic and schematics and soldering skills, or the magic smoke will escape from them !
![:) :)](/media/kunena/emoticons/smile.png)
Anyway you decide to go, i will be here to help, just do not hope you will completely get rid of it, you won't.
FYI, i never did try to remove that noise, i just like it and it reminds me that one of machines in ON. I can hear even some connected to some high tech stepper drives made by LAM Technologies, as they are de facto the best drives i had in my lifetime. I have used plenty of the DS series, have a look
www.lamtechnologies.com/Resources/Doc/DS10_BRUK.pdf
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14 Oct 2016 22:40 #81657
by Marfil
Replied by Marfil on topic Annoying stepper's sound
Thanks TommyL. I opened the box this morning
I can see per board (4 total)
1x PIC16F84A
1x 7805 In TO220 format
4 x IRFZ44N mounted over aluminium bar
1 Crystal 4000 Hz
1x transistor TO 92 format.
4 x power rectifier diodes and electrolitic 4700uF x 25Vcc
4 diodes more (like 1N4007)
Electrolitics, cap. ceramics, resistors, terminals, 1 fuse, etc
Common to 4 boards.
1 Transformer 17 Vca x 3 / 5 A or more
1 Transformer 9 vca 300 mA
So, I need a schematics circuit. If you have one to share with me, please let me know.
I have some photos if you want.
My goal is to reduce the noise as possible...just that.
![:) :)](/media/kunena/emoticons/smile.png)
Regards.
I can see per board (4 total)
1x PIC16F84A
1x 7805 In TO220 format
4 x IRFZ44N mounted over aluminium bar
1 Crystal 4000 Hz
1x transistor TO 92 format.
4 x power rectifier diodes and electrolitic 4700uF x 25Vcc
4 diodes more (like 1N4007)
Electrolitics, cap. ceramics, resistors, terminals, 1 fuse, etc
Common to 4 boards.
1 Transformer 17 Vca x 3 / 5 A or more
1 Transformer 9 vca 300 mA
So, I need a schematics circuit. If you have one to share with me, please let me know.
I have some photos if you want.
My goal is to reduce the noise as possible...just that.
![:( :(](/media/kunena/emoticons/sad.png)
![:) :)](/media/kunena/emoticons/smile.png)
Regards.
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15 Oct 2016 00:48 #81660
by tommylight
Replied by tommylight on topic Annoying stepper's sound
I do not have the schematics, so pictures would be nice, although not very helpful.
You do need that for any modification to it. Interesting to see a PIC , as the better drives use DSP processors for managing micro stepping. Anyway, it looks like the only option for now is just adding 0.1 to 0.47 uf capacitors to power rails if they already do not have them.
You do need that for any modification to it. Interesting to see a PIC , as the better drives use DSP processors for managing micro stepping. Anyway, it looks like the only option for now is just adding 0.1 to 0.47 uf capacitors to power rails if they already do not have them.
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16 Oct 2016 17:27 #81692
by Marfil
Replied by Marfil on topic Annoying stepper's sound
Hi TommyL. I've read a little more about the step motor noise.
You' re right. I need to use rubber to maximum noise isolation between the motor and the table frame.
In addition I need to use plastics screws, nuts, etc to secure the motor to the metal table frame.
This appear to be an integral solution to my problem and I'll continue along this line in a first time.
Really y didn't know about the PWM and you colaborate to increase my knowlege.
Thanks a lot.![:) :)](/media/kunena/emoticons/smile.png)
Best Regards.
You' re right. I need to use rubber to maximum noise isolation between the motor and the table frame.
In addition I need to use plastics screws, nuts, etc to secure the motor to the metal table frame.
This appear to be an integral solution to my problem and I'll continue along this line in a first time.
Really y didn't know about the PWM and you colaborate to increase my knowlege.
Thanks a lot.
![:) :)](/media/kunena/emoticons/smile.png)
Best Regards.
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