33 replies to this topic

[mjr]

I tried a bunch of different frequencies. As I went higher the pitch got higher but nothing really helped. In the end the best I could actually get was the original 85Hz, but having the flipper logic percentage higher to a point it was a quiet low pitched buzz. These solenoids can stay on at 20% power, but I had to go 27% on one and 60+% on the other to reduce the noise, and it was still slightly audible.

 

While I had the cab open I just ran the flippers back to the Mosboard Full I have my shaker/gear running off at the front of the cab, and running your 20kHz build and that works perfect as before. 20% hold power and zero sound.

 

Thanks for the update!  I figured that the frequency limit on those chips was going to make the noise impossible to eliminate that way, but nothing beats experimenting for finding out for sure.  I'm glad that the GPIO approach solved it.

[krystm]

So I’m back with a different issue but since I had posted here and using the other firmware figured ask here.

Long story short I decided to buy a stern shaker. I put the diode on, went in to pinscape and found how low I could go before it turned off. Adjusted the knob to the highest / most comfortable feel. It’s kinda insane how low it is. Anyways, played medieval madness and the shaker is probably double the intensity of maxed out pinscape option.

So in pinscape turned it on to 255 and used a pwm knob (about 1/3 up) nice solid feel no hard rumble or buzzing. Medieval madness intensive vibrations are what it felt like when knob was 3/4 up and much more violent. Back to pinscape and it’s the the same nice low shake when bar is maxed. So it’s like the game is somehow by passing it but I don’t know how since I thought pinscape max was the max it could go?

Also added a gear motor, guessing it doesn’t need pwm / didn’t see it in dof. Went with your suggestion mjr the vw motor, 3d prtinted some mounts and put it under the cab. Tried the high speed and was a bit loud, the slow speed seems pretty good though! Out side chimes I think I’m out of add ons lol.

[digitalarts]

The intensity of a dof effect is set in the dof config of the table.
Just look into dof config online, search for your table, see the settings at Shaker line. It's often like "M1200 I32" or something.
The "I" is for intensity and the value can 0-48. The "M" is a time setting, it's "Minimum". Of course you can set instead "Max" for maximum time of effect...

[krystm]

So I think the pwm is bad some how maybe the capacitor. I was messing with it this morning and quick hits, would hit at max level but continue to play around seems like it gets energized and then works properly. Once I got it where it was lowering the output I couldnt get it to hit hard again until like 20 min later if I didnt interact with it. I know I could also just remove the pwm and find the highest setting I like. Say 5/22 etc, just not sure how would that impact tables. Would it just not fire if say I use 25 and the table calls for 44 would it just run at 25?

[digitalarts]

If you limit your Shaker with external power board to e.q. 40%, DOF and tables see this as full...

[krystm]

If you limit your Shaker with external power board to e.q. 40%, DOF and tables see this as full...

 

 

Yeah that's kinda how I came to the conclusion my external board was bad. (I got the new one just haven't tested yet). Cause in tables it was hitting like the board wasn't even there, after closing and checking pinscape it was still hitting just as hard. Then I dialed it back with pinscape and then took it back to max and it never went above the threshold of the knob. So My guess is something with a bad capacitor or similar on the external pwm board. Was defiantly unexpected to play a table and it go as hard as it did vs what was expected lol. 

 

Also if anyone comes across this post in the future. A real shaker motor is much better By FAR than the DIY. However, I do believe with the right weight amount and RPM a DIY should be able to match it or be close (I couldn't though) and I think time / materials will put you close to the same as the real deal so plan accordingly.

[Abhcoide]

I was having issues with my shaker motor, whenever it was anything other than max power it would whine.  

 

I'm running one of Arnoz's rigmasters.

 

Saw this helpful post - tested the 20kHz firmware; works lovely.

Thank you!

[cryhavok707]

the link to the 20kHz firmware isnt working for me, any suggestions?

[xenonph]

the link to the 20kHz firmware isnt working for me, any suggestions?

 

Your computer may be blocking you from downloading it.

Added as attachment and zipped it.

Try downloading attachment and see if you are able to download it.

 

 Pinscape_Controller_KL25Z_20230207_20kHz_PWM.zip   63.78KB   5 downloads

[Ltek]

MJR, you are awesome, we are all in your debt - thank you!

 

I have been using my shaker on digital (on/off) and missing a lot of shaker goodness... wish I found this a year ago!

[theavevpin]

Hi All,

 

Can anyone shed some light as to where the 20kHz file goes once downloaded?

 

Or, how to update/change your Pinscape settings to 20kHz with this file.

[mjr]

Can anyone shed some light as to where the 20kHz file goes once downloaded?

 

Or, how to update/change your Pinscape settings to 20kHz with this file.

 

It's a firmware binary, so you just go through the normal firmware update procedure in the config tool.  There are any settings for it - it's just a change to the internal PWM setting defined in the build.

[theavevpin]

MJR - I'm just new to the virtual pinball scene and I absolutely LOVE IT!! Thank you for all that you've done, you're awesome. Also thank you for your prompt reply to my FW question, I have updated the FW but still get a lot of noise from my shaker. I even changed the output from PWM to Digital and that didn't change anything either. When I disconnected the shaker motor output from The Rigmaster and connected it to a 'hard' -12VDC and the motor squeal / noise was still present, maybe it has something to do with my speed controller I have connected. this is the one I'm using - https://www.jaycar.c...VxoCbSYQAvD_BwE.

 

 

So, I just thought of increasing the shaker motor speed controller to 100% and then reducing the output of the shaker in DOF by 50%. Squeal/whine noises are gone, so happy.

Edited by theavevpin, 11 July 2024 - 09:27 AM.

[mjr]

​MJR - I'm just new to the virtual pinball scene and I absolutely LOVE IT!! Thank you for all that you've done, you're awesome. Also thank you for your prompt reply to my FW question, I have updated the FW but still get a lot of noise from my shaker. I even changed the output from PWM to Digital and that didn't change anything either. When I disconnected the shaker motor output from The Rigmaster and connected it to a 'hard' -12VDC and the motor squeal / noise was still present, maybe it has something to do with my speed controller I have connected. this is the one I'm using - https://www.jaycar.c...VxoCbSYQAvD_BwE.

​

 

It definitely sounds like it's the speed controller, just by process of elimination - and looking at the link, it does say it's a PWM device, so there you go.  It must be PWM'ing at a low enough frequency that you're hearing it as a whine.

 

The easiest thing to do is probably to ditch that speed controller and just use DOF's software speed control instead.  The DOF config lets you set an upper limit for the shaker motor strength, so you can dial it down there.  It's exactly the same thing that your speed controller is doing - they're both PWM controls.  The only difference is that the PWM frequency with the patched KL25Z firmware is at ultrasonic PWM frequency, so it should get rid of the noise problem.

 

If you still want some kind of external manual control, you could replace your current speed controller with an adjustable DC-to-DC voltage converter.  You can find those for pretty cheap on eBay and Amazon.  Those let you slow down the motor by adjusting the supply voltage.  Most motors will run fine if you lower the voltage by a few volts from the rated voltage, and will run proportionally slower as you reduce the voltage supply.  When shopping for the voltage converter, make sure that the output amperage rating is at least enough for your motor, and look for a continuously variable one so that you can adjust the voltage to get the desired motor speed.