Solved Issues Printing with OctoPrint (disconnects)

Per direction to create a new thread:

I'm trying to troubleshoot an issue with resend requests that OctoPrint apparently "gives up on" (attempted link - I don't have enough rating) when encountering this.

Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.​

So, while I was trying to speed through some deeper understanding of how Marlin works (I have not updated the firmware on my printer, yet), I figured I may have done this to myself by moving some things around (attempted link - I don't have enough rating) in preparation of mounting my raspberry pi inside my case.

For whatever it's worth, I know I have impacted signal quality in some way by modifying the USB connection. So, I figured that it's on me and I should either undo what I did or at the very least shield the wires; which, I planned on doing either way.

Then, it finally occurred to me run a test by using my PC to print from USB using Simplify3D, like I used to before switching to OctoPrint. It worked just fine.

So, it made me think my issue is one of a couple things:

1. I modified my USB connection and have ultimately affected USB connectivity to my raspberry pi. Which, would explain why I'm getting failed prints (minutes to hours for it fail) after this change.
2. Because of the result of # 1, I'm now seeing the messages (that OctoPrint doesn't like) and is apparently a toss-up of it either being Marlin's fault and/or OctoPrint's strictness.

I can understand why my PC printing would still work, considering I'm supplying a decent amount of power/signal from my USB connection versus what I'm getting with the raspberry pi. So, I'm hoping that if I shorten my USB cable down to about a foot (connection between Arduino and raspberry pi), along with properly shielding the wires I used to move the USB-B PCB extender, I may see improved results with my final configuration/goal.

I'm curious if it's recommended that I upgrade my firmware to go along with the aforementioned.

P.S.

For those who feel inclined to berate me for my hardware modifications, that's fine. I did it for a valid reason and I figured that worse case scenario, I'll just replace it with another Arduino I have laying around.

 

Robo 3D R1+

 

I can understand where you're not following me on some of scenario (links would've helped, but I was restricted from posting them). That's good to know, though. I already updated the firmware about 30 mins ago. I also dropped the acceleration down to 500 from 1300, just for the hell of it. I saw Novice Expert do it, so I decided to try it. I much prefer that functionality.

I'm not drawing power right off from the power supply. I'm wiring an outlet in parallel with the incoming connection to the power supply. So, I shouldn't be affecting the power supply's capacity in any way.

 

I actually did just update everything on the raspberry pi, itself, as well. So, I'm hoping that'll help as well.

I wish I would've had the patience to test each step I completed to determine the actual root cause. I just want this to work... So far...with the print I currently have going, it seems like something(s) fixed it.