Simplify3D User Forum

Simplify3d version 5.1.2 crashes when connecting to Davinci Duo via USB.

I was running version 4.1.2 with no issues at all and I recently paid for the 5.1.2 upgrade. Now after I added the Davinci printer Simplify3d crashes every time I have my printer connected via USB. It also crashes whenever I ask the machine tool to connect to the printer. I can see a few lines of communication between by computer and the printer and then is crashes. It gives the following error:

opt/Simplify3D-5.1.2$ ./LaunchScript.sh
connect failed: No such file or directory
./LaunchScript.sh: line 4: 17416 Segmentation fault ./Simplify3D "$@"

I have tried deleting and re-adding the printer and reinstalling Simiplyfy3d more than once. I have even gone to remove the Simplify3d directory from:

.config
.local/share/Simplify3d

The only way the new version runs is if I do not have the printer connected to the computer. I am running Ubuntu 24.04. I have also tried Ubuntu 22.04, same issue.

Which exact Duo model do you have? 2.0A?

Do you know what firmware you have on the printer?

We have quite a few XYZ machines in our office that are working okay, so trying to understand what might be causing this with your unit.

The printer is a Davinci 2.0A. I have tried versions 2.11 and 3.02 (Newest published version that remove the chip requirement)..

Unit Setup

Using Davinci 2.0 setup
Pinter on USB

Using /dev/ttyACM0 (11f1, 2503, 3F20APUS5TH66FT173)

Last lines to connection Test:
READ: o:p8,t3c3
READ: p:dvF200A00
READ: S;3,0,3
READ: t:2:12,12
READ: v:3.0.2
READ: w:2 GBV6ZTH5AG0033,GBA6ZTH61J0056
READ: k:65
READ: l:en
READ: $
Connection successful!
Connection closed.

I then finish adding the printer. I give it name davinciDuo

When I try to connect I get this before it crashes:
READ: m:0,0,0
READ: o:p8,t3,c3
READ: p:dvF200A000
READ:s:3,0,3
READ: t:2,12,11
READ: v:3.0.2
READ: w:2,GBV6ZTH5AG0033,GBA6ZTH61J0056
READ k:65
READ: l:en
READ: $
Connection successful!
SENT: XYZv3/query=a
READ: b:23
READ: d:0,0,0
READ: e:0
READ: f:2,164395,237341
READ: i: 3F20APUS5TH66FT173
READ: j:10
READ: L:2,13815,28019
READ: m:0,0,0
READ: o:p8,t3,c3
READ: p:dvF200A000
READ: s:3,0,3

Then is is crashes, the window closes, and in the command line I get a segmentation fault.

I have programmed a lot in C. Normally a segmentation fault is related to try to access from a pointer that is not defined or has been corrupted. You are attempting to access a memory location that is restricted or has not been defined.

Tried with a Marlin Based Anycube I3 Mega, no issue. I was able to connect via the USB without the software crashing. The issue pears to be only with the Davinci Duo 2.0A.

Thanks