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You are too loud! Now, you're vibrating too much.

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Mic_Hazelburn
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Joined:25 Nov 2016, 08:18
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You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 23 Apr 2018, 12:52

Hey Guys,

I did some changes to get my prusa silent. first I installed some temperature switch which set the fan on when the temperature hits 45°C. Also the coil in the PSU was very loud. When you start the printer, she keep holding some very high tone.

But now, I have another problem. The vibrations are to much. If all axes are set to zero, the Y-axis is particularly loud. Either something's too tight or too loose. It sounds like an enormous amount of energy has to be invested, although everything runs smoothly. During printing the sound is also present but not so strong. More with slow movements than with fast ones.

Any ideas that I can change or proof?
Last edited by Mic_Hazelburn on 26 Apr 2018, 08:26, edited 1 time in total.

MrDoom
Posts:223
Joined:01 Apr 2017, 10:01

Re: You are to loud! Now, you're vibrating too much.

Post by MrDoom » 23 Apr 2018, 14:19

Hello Mic,

I would suggest 2 changes to make you printer almost whisper quiet:

- Change the PSU to a fanless one with the same power and voltage 24V 360W
- Change all the stepper drivers to TMC2208

I did this and the printer is barely hearable with any ambient noise :)

If you want a cheaper alternative:

- Change the fan on the PSU to a 120mm fan
- Buy some A4988 step sticks, altough not nearly as silent as the Trinamic drivers they are much cheaper and are much better than the default DRV8825

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 24 Apr 2018, 09:12

MrDoom wrote:
23 Apr 2018, 14:19
Hello Mic,

I would suggest 2 changes to make you printer almost whisper quiet:

- Change the PSU to a fanless one with the same power and voltage 24V 360W
- Change all the stepper drivers to TMC2208

I did this and the printer is barely hearable with any ambient noise :)

If you want a cheaper alternative:

- Change the fan on the PSU to a 120mm fan
- Buy some A4988 step sticks, altough not nearly as silent as the Trinamic drivers they are much cheaper and are much better than the default DRV8825
I think the Version with a bigger fan or quieter one is the first thing because I cannot find any fanless PSUs here in germany for under 100€. The chinese market would be a thing but...the quality is not my standard :lol:
I saw the post with the TMC2208 steppers long time ago - is this ready to go? Also with instructions? I don't know what the current situation is :?: Do you have Version 1.0?

On the other hand the A4988 are of course mega cheap!
I will read the thread for the TMC2208 again and if I understand all this, it will be done like this.

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are to loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 27 Apr 2018, 09:16

MrDoom wrote:
23 Apr 2018, 14:19
Hello Mic,

If you want a cheaper alternative:

- Change the fan on the PSU to a 120mm fan
- Buy some A4988 step sticks, altough not nearly as silent as the Trinamic drivers they are much cheaper and are much better than the default DRV8825
So, I buyed the A4988 step sticks - do I have to change some settings or can I put them in and all runs smoothly?

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 27 Apr 2018, 20:06

Ehm.... should I have known something about the A4998?
I blow the board o.O
If I switch on, only the fans are running....

So, what did I wrong???

MrDoom
Posts:223
Joined:01 Apr 2017, 10:01

Re: You are too loud! Now, you're vibrating too much.

Post by MrDoom » 27 Apr 2018, 20:55

Hi there Mic,

You migh have plugged the chips the wrong way, the potentiometer on the DRV8825 faces up on the allegro it faces down on the motherboard
Image

To be sure when changing one stepper driver model for another always check that the silkscreen on the bottom of the drivers matches up the EN(ABLE) pin from the original stepper driver position on the motterboard.
You can see this pin on the bottom left of the stepper drivers on this image
Image

if you did plug them the wrong way arround you board is most likely fried and needs to be replaced :( sorry I forgot to warn you

Other then changing the stepper driver to the A4988 you need to configure the firmware to use the allegro stepper driver.
To do that you need to download the printer firmware here:
viewtopic.php?f=8&t=719

Extract the file then edit the configuration.h file, uncommenting the line for your option,
if you install all 5 A4988 just edit line number 71 and delete the //, so the line changes from:
// #define hBp_A4988all
to
#define hBp_A4988all

if you only install the two bottom extruder drivers the line you need to change is different, you need to delete the // from line 68:
// #define hBp_A4988ext
to
#define hBp_A4988ext

Do not define both at the same time!

When the change is made save the file, then follow the tutorial, available on the firmware link above, on how to install the firmware you just configured :)

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 28 Apr 2018, 09:09

Damn! I checked them but was so in a hurry...

Yep, in this case, I need another board. But can I buy any MKS Gen V1.2 Board right? Without stepper, it cost 22€ - seems okay so far.
Is this right? https://www.amazon.de/dp/B06VSFTN4C/ref ... B06VSFTN4C

MrDoom
Posts:223
Joined:01 Apr 2017, 10:01

Re: You are too loud! Now, you're vibrating too much.

Post by MrDoom » 30 Apr 2018, 11:47

Hi there,
Yes any MKS gen 1.x board should do as they all have the same pins the changes are on the power regulation to the chip :)

Anyway you should try contacting beeverycreative just to be sure

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 05 May 2018, 14:51

Man, I hate these kind of days!

So, one of the drivers is burned after I set it in the new board - but this was the driver, which I put in the wrong direction - so, ya - 4 to go.

But, what do I have to change, if only the extruders should use the old drivers? I would only change X-Y-Z.

Is it than #define hBp_A4988Z ...Y ...X and so on or what?


Thx for help!

Mic_Hazelburn
Posts:53
Joined:25 Nov 2016, 08:18
Location:Germany
Contact:

Re: You are too loud! Now, you're vibrating too much.

Post by Mic_Hazelburn » 07 May 2018, 11:40

So, after a quick response from the support team, it is not recommend to use only steppers for the x-y-z axes.

Of course, my main focus was a quieter version of the hpb - the quality is good enough.

But now, I ordered some new driver (you only get 5pcs cheap and quick enough).
They will come to me tomorrow.

After I get those, I will give you a feedback what my board is doing now.

Ah, PS. If someone changes his board to a new one - mine was without any software on it!

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