Walsh DS239MG MK85 Issue

[fair oriole]

Does anyone have any clue to what might be going on? I’m using the MKE-Mini with the updated software for the Vek/Walsh 85.

[frosty junco]

Hey @fair oriole, thank you for contributing to this forum.
Please provide as much information (images, video, description) as you can. This will increase the chance that someone can help you with your issue.
Use the Close button when your issue is resolved.

[fair oriole]

It’s doing this now

[somber stratus]

Sounds like a power problem. What are you using for a power supply?

[fair oriole]

I spliced a connector to this MagSafe battery pack and been using it with USB A.

[ocean furnace]

Whats the voltage and amperage output of the batter pack?

I also would suggest installing a normally open momentary switch instead of tapping the wires together.

[fair oriole]

Gonna do that tonight, when I’m home I’ll shoot y’all a shot of the battery pack I’m using

[fair oriole]

Says the output out of the type A is 2.1A or 5V

@ocean furnace @somber stratus

[somber stratus]

Fully charged?

[fair oriole]

Fully charged

Only issue is the battery pack shuts down

[somber stratus]

Ah... you have a "smart battery". We designed the PENELOPE for that so it tricks the battery into staying on while not draining it.

[fair oriole]

Would that be what’s causing the servos to act like that? And do you got a battery pack that wouldn’t turn off?

[fair oriole]

Fully charged battery and it’s doing this

[somber stratus]

Do you get that buzzing noise when the servo is not in the helmet? It sounds stressed.

[fair oriole]

Like if I take it out and just do it?

That looks like the normal renders

[neon oracle]

*** Also *** Is the USB cable you are using rated for Power ? NOT all USB cables can handle power, some of them restrict the amount of power and can only deliver Data. Make sure the USB Cable is designed for “Charging”

[fair oriole]

It’s from Dollarama so I’m pre sure it can handle power for charging

I’m wondering if it’s the weight of the faceplate. Faceplate and the motorization arms were printed at 10% infill

[ocean furnace]

Whats your process for attaching the servo arms to the faceplate?

[fair oriole]

Wdym @ocean furnace

[fair oriole]

Getting somewhere with it

Forgot to mention this helmet’s scaled to 104

[ocean furnace]

There’s a specific way to attach your servos/arms from dome to faceplate.

Your servo sounded good without the faceplate thats why I was checking.

Typically you attach your helper arms from faceplate to dome and tape the faceplate in place.

Power up servos without the arms on so they home to closed position. Attach servo arms to faceplate.

Then you can remove the tape and test it out.

Did you install the switch yet?

[fair oriole]

I’ll redo that this morning but I did that I think

Didn’t install the switch no

[fair oriole]

I redid that and it messed it up where it’s back to the first test’s issue

Faceplate comes up but craps out and falls down

[ocean furnace]

After mounting your servos arms to your faceplate try powering down your board and manually moving the faceplate open & closed.

It should move freely without binding. Sometimes the helper arm screws are too tight.

But first, put that switch on.

Do you have your LED eyes plugged into the board?

[fair oriole]

Not at the moment but I can

[fair oriole]

The servo arm screws, how tight do you put em

[somber stratus]

Starting to wonder about the weight of the faceplate. It's not easy, but I've been able to print faceplates with 5% infill and 2 walls.

[fair oriole]

Push comes to shove I might just reprint my faceplate then

It’s at 10% infill rn

[ocean furnace]

You need to feel it out for yourself. When you fully tighten the arms it will be tough to manually open and close.

I’m not sure about the single servo you’re using but with the MG90s any tension or binding will stop them from opening.

So I will fully tighten, then back off slightly until the movement is smooth.

[fair oriole]

Imma do that tonight

[fair oriole]

UPDATE

[somber stratus]

Getting there. Weird how it pauses before fully closing.

[fair oriole]

Could you at all edit the close using Arduino IDE to make the closing speed any faster?

I was trying to figure that out yesterday

[fair oriole]

@somber stratus is it possible for you to explain how to modify the code on the board? Maybe if we put the closing speed higher it’ll work better (since I think it’s 225 for opening and 175 for close)

[somber stratus]

I updated the README.md doc.

[fair oriole]

Thank you sir

[gray skiff]

The Shape did you manage to fix your problem ? I have the same problem like you right now...

[fair oriole]

Swapped to the MG90s servos cause we found out the problem with the DS239MG servo, the thing doesn’t have enough power to go fully up and down.

Yet now I’m having issues with the MG90s servos

[gray skiff]

Thats how its for me atm...

Did you try to swap the wires ?

[fair oriole]

It was working perfectly fine until a few days ago, I think it’s the servos stripped the geared servo arm ngl

I’m testing it with a new one this weekend

[ocean furnace]

Do those files have the servo arm with the slot for the horn that comes with the servo?

I rarely use the servo arm with built in gears

[fair oriole]

They do, I might honestly try that out if this new geared one I printed fails

[flat tide]

Any update? I have the Mg90 servos and mines doing this

[fair oriole]

Mine’s working fine, you probably didn’t home your servos cause it looks like it is in the “closed” spot with the faceplate in the middle. Take your servo arms off, power on the board again, then one you hear it go on, test it out. Make sure you put the servos in the closed position, then reattach the servos

[flat tide]

Yep that’s exactly what I did! It works perfect now I do have a question for ya though. I know python coding but not sure how I can edit the code in the crash works board

[fair oriole]

That I don’t know at all. I’ve tried to figure that out myself. @somber stratus any chance you know if we can?

[flat tide]

I did end up fixing mine with a little help. I use 360 servos as well and it works amazing

[fair oriole]

360 servos?

[flat tide]

Ya instead of 180 servos I use full 360 rotating servos

I accidentally got the 360 ones but they work fine for me

[fair oriole]

Interesting

[flat tide]

My mask is a little bigger though so it needs about 190 degrees of rotation to fully open so I guess it’s a blessing in disguise

[gray skiff]

I fixed mine too

The chin need some more work, it doesnt slide to the end on the opposide side of the servo arm. But i think that is gonna be easy fix.

[flat tide]

I love it