+5v Power from PSU; +12v VCC from PSU; GLCD and USB? SMOKE

Controllers Smoothie
1

Hello!
I´ve done something wrong while setting up my 3d printer.
After great effort to get the wiring right. somehow i still got something wrong.

This is my setup:
Smoothie 5xc
GLCD from Robotseed
12V ATX PSU
and USB from my computer (to do the config).

Note that i´m running both 12V VCC and +5v from my PSU.
I haven´t soldered in the 5v voltage regulator.

This generated very little smoke, rushed to shut everything down, hope the damage is repareble! :confused:

How can i proceed? maby my combination somehow is bad or non-compatible?

Please point me in the right direction!

Thanks!
// Henrik; Sweden

Imported from wikidot

2

Can you tell us exactly how you wired things ? Ideally with pictures ?

3

Thanks for the super fast reply!

Will try, just give me a minute or two to prepare a pic.

//H

4

Trying to share a dropbox link with the picture, but my forum status won´t let me!
Please, how to work around this?

//H

5

Replace the dots in the link with another character.

6

link

7

Can you confirm that the red wires are + and the black wires are - ?

8

Yes, confifmed with multimeter.

VBB is +12.28V

5V in is +5.17V

IN large MOSFET 2.7 is also +12.28V

9

Then there should have been no smoke. Could you draw a diagram of all the inputs and outputs, and what exactly you wired to each ?

10

I´ll try my best.

11

I´m no electrician. Hope this makes sense.

link

Soldered the missing pins to the board, to accomendate the GLCD.
Using Optical endstops v2.1 reprap
Not soldered the 5v reg.

12

I do not see anything wrong in that diagram. Can you unplug everything, and inspect the board to see if you can locate a particular place that has burnt ?

13

I´ve found 2 things-

  1. There´s some flux recidue on the back of the GLCD adapter, exp 1.
  2. By reflecting and playing with light, i suspect there´s a small solder bridge on 2 pins on the back of the USB connector?
    Of this i can´t be certain, but it looks strange.

I need to access a microscope to rule out the solderbridge, the guy who lends me the crimp pliers might own one.
And i´m returning them tomorrow morning, hopefully a close up inspection will be conclusive.

Can the flux recidue short pins out= remove it?

Flux:
QdropboxQcom/s/tbtbeak98uyi8u0/Flux%20recidue%20GLCD%20adapterQjpg?dl=0
Bridge:
QdropboxQcom/s/uplbhktn5775xgb/USB%20SolderbridgeQpng?dl=0

. replaced with capital Q

The pictures aren´t great…

14

Hi!
It was indeed a small bridge at 2 USB pins, please see attatched picture.

QdropboxQcom/s/rl5up7v4ebbo0j7/USB%20Solderbridge%20closeupQjpg?dl=0

After close scrutinizing of components and solderings, no burnt components could be found.
The bridge between the USB pins was removed, also the flux residue.

In what steps would you recomend to start hooking the wires back together?
Is there any way to “Ask” the board if it feels alright? Some kind of diagnostics?

Have a nice day, //Henrik

15

The leds on board tell you how well the board is doing. Start wiring things back together again, and see how it goes …

16

Hi!
I started to reassemble the printer yesterday.
I have jogged it in X Y Z + extruder from Pronterface and done the homing sequence for X and Y.
The steps/mm is configured and the speed in XY in incredible, 20000 mm/ min without loosing steps!
I have some mechanical issues in Z, but that´s not smoothies fault, :stuck_out_tongue_winking_eye:

This was done without the GLCD. But it too, seems to be working fine. (Have not tested its full functionality yet)
Work will be resumed in the weekend.

It seems so far to have survived the smoke. Time will tell.

Perhaps the small short out generated little heat, boiling the flux and made smoke? This is my theory as of now.
//Henrik