SV05 display is scrambled during printing

[Danabw]

@Jackv

In summary i can suggest only 2 ways how to solve issues, replace power supply or cut j4 to avoid interference. Cutting j4 not will be a problem because display has ground connection through wires ribbon

Thanks very much for breaking it down more, really appreciate it. So a couple more questions (of course, sorry.):

1. The printer is safe to use, right? Not going to zap me at some point unless I take it w/me into the shower.
2. What’s the best way to cut j4…heat up solder iron and run across, or ? I don’t have experience w/physically modifying PCBs.

Thanks!

[Jackv]

1 should be safe , cause printer frame still has a connection to safety ground wire in wall power plug.

2 if you’re looking closer on you display module, you can see what j4 has 2 pads connected with thin line. you just need a sharp knife to cut that thin line between two pads .

[sovol3d]

hi @Danabw This

@sovol3d

The action of using a wire end connected to the J4 end of the machine’s profile to form a state of conduction (meaning grounded) can avoid other interference and screen corruption. It seems to be a feasible mentioned to shoot this trouble.

is in response to your inquiry about

@Danabw

Hopefully you can share this w/your engineers to confirm that this is the issue behind the display scrambling and that the suggested fix (cutting J4 jumper) isn’t going to cause any other issues short- or long-term.

Hope I made it clearer.

[Danabw]

Thanks very much - appreciate the additional info!

I’m in the middle of a forced-march print (wife wants seven moving/rotating spice racks ASAP) so as soon as those are done my SV05 has a surgery scheduled.

[sovol3d]

haha, you are the few people I read that the wife is in support of your 3d printing hobby. Hope the printing would add more love and fun to your life~ Have fun with the 3d printing journey!

[Danabw]

Victory is mine!

[Jackv]

So @Danabw how pcb surgery was?

[Danabw]

I think it came out well…I used a box-cutter (razorblade) and I think I’ve cut it sufficiently.

I did it this morning, and hope to reinstall the display this afternoon and mount it right up against the frame to see if the display becomes scrambled again or not. I will also test zip-tieing the display ribbon cable to the front frame rail, to see if that still causes display corruption. Thanks again for your help, I’ll report back when I have results!