# Strange error mid-cut **URL:** \ **Category:** Uncategorized\ **Created:** [March 30, 2018, 5:33pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016 "2018-03-30T17:33:35Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 5:33pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/1 "2018-03-30T17:33:35Z")
Hi. Thanks for your help. I am new to the Maslow scene, and have spent a number of days getting everything prepped for my first project. Things were going great when about 1 hour in to a sign design, the cut decided to erratically change direction. I was watching on the screen as the Black location indicator and red location indicators went out of alignment and decided to go in different directions. Here was the result. Any ideas? The machine worked so well with incredible accuracy unattended for a couple hours. I happened to be watching it when the error occurred. It didn’t lose precision. Just went the wrong direction. Thanks so much for your help. ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/2/2afd50744fcb9de9a6c42ada1a086bfb7d621e15.jpeg) ---
**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\ **Post date:** [March 30, 2018, 5:36pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/2 "2018-03-30T17:36:44Z")
That sounds like it might be a bug on our end with the way the machine is interpenetrating the gcode. Would you be willing share the file that was running? ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [March 30, 2018, 5:50pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/3 "2018-03-30T17:50:41Z")
Welcome, The log.txt from the Ground Control folder could also help finding a clue, but I guess you are restricted as a new user to post a link or upload files. A few likes and comments will get you over that. ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 6:20pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/4 "2018-03-30T18:20:34Z")
Here is where the file cut out. I’ll try to upload or link the file itself below. ![23%20PM](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/7/756d97ce06b157ab0f30189bfe636ba697a8b2df.png) ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 6:22pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/5 "2018-03-30T18:22:13Z")
Here is the gcode file: [https://www.dropbox.com/s/sceu8ej6oitf0ac/combo2.nc?dl=0](https://www.dropbox.com/s/sceu8ej6oitf0ac/combo2.nc?dl=0) ---
**Author:** ![Keith](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/keith/32/1332_2.png) [@Keith](https://forums.maslowcnc.com/u/Keith)\ **Post date:** [March 30, 2018, 6:26pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/6 "2018-03-30T18:26:16Z")
> [@Arichards](#): > > It didn’t lose precision. Just went the wrong Did you stop the cut when it went off course, or did you let it go and find that it eventually got back on course? I only ask because I am wondering if there was some z-move that was missed in the g-code sent to the motor controller. ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 6:32pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/7 "2018-03-30T18:32:43Z")
I thought the same, but waited long enough to determine to my best knowledge that this hadn’t happened. What was particularly strange was that the black target (I’m guessing position in g-code) and red target (estimated position of cutting head) were going in different directions on my computer screen. Nearly perpendicular. I let it go fro about 60 seconds before stopping. ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 6:33pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/8 "2018-03-30T18:33:52Z")
You can see in the shape of the bad cuts, it looks like it is still cutting sun-rays as it should have, but they were just rotated about 90 degrees. ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 7:11pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/9 "2018-03-30T19:11:28Z")
Here is the log file. Just found it. > **[log.txt](https://www.dropbox.com/s/x2fs8b10vga7xcu/log.txt?dl=0)** > > Shared with Dropbox ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [March 30, 2018, 7:17pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/10 "2018-03-30T19:17:47Z")
Is the connection timeout significant? Did you disconnect the arduino? ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 7:19pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/12 "2018-03-30T19:19:24Z")
I unplugged it once the error occurred. ---
**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\ **Post date:** [March 30, 2018, 7:35pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/13 "2018-03-30T19:35:46Z")
The log is super helpful, thank you! I can see where things go wrong at around line 350,633. The machine gets the command `G1 X-33.443 Y9.7261` And after that the reported position error starts climbing `[PE:2.38,-0.49,127]` There’s no warnings from the software that something has gone wrong, which is making me think it could be a hardware thing. Will you run the hardware test by clicking **Actions -\> Test Motors/Encoders**? ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 8:47pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/14 "2018-03-30T20:47:28Z")
Well… that’s a bummer. First test had a motor fail followed by two where all pass. Sounds like that might be indicative. I pulled the chain on the second test which may have engaged something that was out of place. Have you seen anything like this before? ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/b/bc0650f1e9713eeea0450994956390cae0ec722a.jpeg) ---
**Author:** ![bar](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/bar/32/10_2.png) [@bar](https://forums.maslowcnc.com/u/bar)\ **Post date:** [March 30, 2018, 8:51pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/15 "2018-03-30T20:51:51Z")
That sounds like a loose connector to me! Do they all look fully seated? ---
**Author:** ![Arichards](https://avatars.discourse-cdn.com/v4/letter/a/3be4f8/32.png) [@Arichards](https://forums.maslowcnc.com/u/Arichards)\ **Post date:** [March 30, 2018, 9:31pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/16 "2018-03-30T21:31:07Z")
Okay. Connectors are fully seated. Noticed two things. 1. When returning to center, left motor made a strange sound. Took apart gearbox. All gears In good order. Resituated everything and now no sound. 2. Left motor controller on board has a slight bump on it. It also keeps losing the cooling fins. I reapplied the cooling fins and secured them with some tape. Maybe overheating is causing the adhesive to fail. Maybe failed adhesive is causing overheating? Lots of possibilities. In any case, just started the cut again. We’ll see what happens. ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [March 30, 2018, 10:16pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/17 "2018-03-30T22:16:13Z")
> [@Arichards](#): > > Left motor controller on board has a slight bump on it. Can you describe the “bump” or post a picture? ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [March 30, 2018, 10:31pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/18 "2018-03-30T22:31:35Z")
if there is a bump on the chip, it’s probably blown a picture would let us see for sure. ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [March 30, 2018, 10:35pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/19 "2018-03-30T22:35:21Z")
A chip with a bump does not sound good. I have the file running on a simulator for over 4 hours now and are at 12% 😱 So far no sign of buffer overflows or any other issues with the file. Will check where I am in the morning after breakfast. ---
**Author:** ![madgrizzle](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/madgrizzle/32/1372_2.png) [@madgrizzle](https://forums.maslowcnc.com/u/madgrizzle)\ **Post date:** [March 30, 2018, 10:39pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/20 "2018-03-30T22:39:05Z")
He can’t post anymore today (I guess forum limit for new people), but here’s the picture he messaged me. ![91E6B771-FA8E-4A16-AB30-B50AE1C9B46A](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/b/b05f1ee786f6b0a492d46c0bd29c5e56080b4edb.jpeg) ---
**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\ **Post date:** [March 30, 2018, 10:41pm UTC](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016/21 "2018-03-30T22:41:30Z")
That chip is gone, for sure [Next page](https://forums.maslowcnc.com/t/strange-error-mid-cut/3016.md?page=2)