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clough42 / electronic-leadscrew

Lathe electronic leadscrew controller
MIT License
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FIXED! Magic Blue Smoke came out of ELS Boost Board V2.1 #153

Open steelbarz opened 3 years ago

steelbarz commented 3 years ago

Has anyone else had this problem? I had everything all set up and it was working and just about ready to install on my lathe (Craftex 701). I was checking out the different feed rates and threading pitches and how it would spin my hybrid servo/stepper (57HB22 With HBS57 Driver). Setting the display to MM and cycling through the different options until I got to 6. Spun the encoder by hand and heard a pop, the magic blue smoke came out from the ELS Boost board (V2.1) now both the TI board and ELS Boost are dead. The power supply for the TI board and ELS Boost was set to exactly 5V and verified with a multimeter.

My setting I changed in config.h

define STEPPER_MICROSTEPS 20

define STEPPER_RESOLUTION 200

define ENCODER_RESOLUTION 4000

20210506_114633 20210506_114751

dsgroninger commented 3 years ago

Steel,

It looks like the voltage regulator on the interface board let go. On your second picture, take a close look at the solder joints on that head right beside it where the little flags call out 3V3 on one side and 5V on the other. Is there a solder short between those pins? If not, then I'm guessing that something else supplied by 3.3 volts is shorted to ground somewhere.

Dan

steelbarz commented 3 years ago

Thanks for the reply, I know my soldering job is not the best I blame the flux...lol, but before I applied power to the board I checked continuity as described in the troubleshooting section and made sure there were no shorts, so that was not it. As I mentioned everything was working great until I cycled through to the highest setting in the MM pitch setting and spun the encoder by hand. My hybrid stepper motor spun on turn and pop.

20210507_183959

clough42 commented 3 years ago

I don't know. It's possible it was a bad part, but it's hard to tell at this point.

I went ahead and soldered the new board just to eliminate that variable.

You might check to make sure the inputs on the servo driver are truly isolated. If something is wrong there and it fed high voltage back through the step/direction lines, that would cause trouble.

James

On Fri, May 7, 2021, 4:42 PM steelbarz @.***> wrote:

Thanks for the reply, I know my soldering job is not the best I blame the flux...lol, but before I applied power to the board I checked continuity as described in the troubleshooting section and made sure there were no shorts, so that was not it. As I mentioned everything was working great until I cycled through to the highest setting in the MM pitch setting.

[image: 20210507_183959] https://user-images.githubusercontent.com/80372851/117515308-e267ab00-af63-11eb-99eb-a77c844a505b.jpg

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steelbarz commented 3 years ago

Thank you James for your help and your efforts. I also won't be using the same power supply set up to eliminate that variable as well. This is truly a great project and I know when I get it up and running it will be well worth it. I just hope I can do it without any more glitches, which never happens....lol I have a mill CNC project I want to start :)

steelbarz commented 3 years ago

IT'S ALIVE!

Thank you James for this amazing project. After a bumpy start, it got all hooked up today and works wonderfully! I can say this I never wanted to cut threads because of the pain of change gears. 1st thing I did was check out that feature and wow now I think my lathe is even more useful than it was before.

20210603_184752 els

clough42 commented 3 years ago

Awesome! I'm glad it's working for you.

James

On Sun, Jun 6, 2021 at 7:01 PM steelbarz @.***> wrote:

IT'S ALIVE!

Thank you James for this amazing project. After a bumpy start, it got all hooked up today and works wonderfully! I can say this I never wanted to cut threads because of the pain of change gears. 1st thing I did was check out that feature and wow now I think my lathe is even more useful than it was before.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/clough42/electronic-leadscrew/issues/153#issuecomment-855506075, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAZLSHH3CBIBI4GTKX5N5D3TRQK53ANCNFSM44HM3QEQ .