# Sculpfun S9 strange error **URL:** \ **Category:** LightBurn Software Questions\ **Tags:** grbl, sculpfun-s9\ **Created:** [January 11, 2024, 4:58pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442 "2024-01-11T16:58:21Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 4:58pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/1 "2024-01-11T16:58:21Z")
![Imagem do WhatsApp de 2024-01-11 à(s) 09.47.22_54001516](https://forum.lightburnsoftware.com/uploads/default/original/3X/7/5/753dbc946772fcefe75456a6e63f93040a44dc29.jpeg) Hello. I just purchased a Sculpfun S9 and put my first box to cut. But unfortunately it is cutting crookedly, even with everything installed according to the manual. Did anyone also have this problem and knew how to solve it? Thank you in advance for your attention and sorry my bad english. ---
**Author:** ![Dskall](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/d/b5e925/32.png) [@Dskall](https://forum.lightburnsoftware.com/u/Dskall)\ **Post date:** [January 11, 2024, 5:08pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/2 "2024-01-11T17:08:32Z")
Go through and check anything for looseness, especially set screws on drive pullies and laser head for looseness. ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:15pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/3 "2024-01-11T22:15:13Z")
The same thing keeps happening… now I’m afraid I’ve tightened everything too much ![Imagem do WhatsApp de 2024-01-11 à(s) 19.14.09_90e3ee8e](https://forum.lightburnsoftware.com/uploads/default/original/3X/3/c/3c5bda1fcaf64e70d568c3b42ab0f1f4ea76aa98.jpeg) ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 10:25pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/4 "2024-01-11T22:25:21Z")
this is for the most part belt tensions Try this for me and send a picture of result [Dot Test with Angle.lbrn](https://forum.lightburnsoftware.com/uploads/short-url/nA1rzsEq585ayw9Ft6jSG3dcvry.lbrn) (46.3 KB) ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:30pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/5 "2024-01-11T22:30:26Z")
![Imagem do WhatsApp de 2024-01-11 à(s) 19.29.30_fc6dedaa](https://forum.lightburnsoftware.com/uploads/default/original/3X/f/0/f0ef1cc363e6638ad6548e758c9f0c2979bfdef2.jpeg) ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 10:31pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/6 "2024-01-11T22:31:27Z")
Definitely issue with your belts Any chance you can take a few pictures of your belts? as a visual guide ![Belts](https://forum.lightburnsoftware.com/uploads/default/original/3X/c/1/c1aaa704c611029a26c14caeb05e816f63901d19.png) ---
**Author:** ![JohnJohn](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/johnjohn/32/37027_2.png) [@JohnJohn](https://forum.lightburnsoftware.com/u/JohnJohn)\ **Post date:** [January 11, 2024, 10:32pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/7 "2024-01-11T22:32:19Z")
The head of the engraver can be loose and generate small errors in the Y-direction. You may also reduce errors generated by machine deflection by slowing down. May I ask your commanded ‘Engrave Speed’? Are you working in mm/minute? ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:34pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/8 "2024-01-11T22:34:10Z")
![Imagem do WhatsApp de 2024-01-11 à(s) 19.32.40_dd6cd259](https://forum.lightburnsoftware.com/uploads/default/original/3X/c/0/c0b7a264aac7d1b0bf4f9c653c05e870470b1f15.jpeg) ![Imagem do WhatsApp de 2024-01-11 à(s) 19.33.15_4d844f97](https://forum.lightburnsoftware.com/uploads/default/original/3X/c/b/cb0c04ccd663c719d3c9bf8c3d0a76b135cee7fd.jpeg) ![Imagem do WhatsApp de 2024-01-11 à(s) 19.33.23_6df74958](https://forum.lightburnsoftware.com/uploads/default/original/3X/5/a/5a247fa574930085c598ba4c66094779a7497baf.jpeg) ![Imagem do WhatsApp de 2024-01-11 à(s) 19.33.31_1fe5dd6d](https://forum.lightburnsoftware.com/uploads/default/original/3X/6/0/6078d95e3ba89092765fa72e2bb40d312b8509e6.jpeg) ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:35pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/9 "2024-01-11T22:35:17Z")
![image](https://forum.lightburnsoftware.com/uploads/default/original/3X/5/2/5266b3bdb672262d0e2f526469c71315cafe8488.png) I thought it might be that, so I reduced it a lot, but it didn’t solve it. ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 10:36pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/10 "2024-01-11T22:36:09Z")
Given the flatness of your circle at TOP and bottom i suspect your Y belts are the ones that need a lot more tension Make also sure your frame is square by moving the laser front or back, both wheels touch the end of frame at the same time? ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:36pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/11 "2024-01-11T22:36:13Z")
I’ve tried 500/25 ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:39pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/12 "2024-01-11T22:39:00Z")
![Imagem do WhatsApp de 2024-01-11 à(s) 19.38.00_0c68580b](https://forum.lightburnsoftware.com/uploads/default/original/3X/8/b/8bdf7dafb3b2889e753c0bee6b7fe136c7fd7737.jpeg) ![Imagem do WhatsApp de 2024-01-11 à(s) 19.37.45_cb182c33](https://forum.lightburnsoftware.com/uploads/default/original/3X/e/7/e713b4c5791653f41f7a89d87fa6d721b7e08f65.jpeg) ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:44pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/13 "2024-01-11T22:44:04Z")
[Video](https://1drv.ms/v/s!ApaWktaLaF0hi4B5GpHGN-DwjPt_OA?e=2eV8bY) Hmmm I guess its not. I’m gonna try to tight left X ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 10:46pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/14 "2024-01-11T22:46:59Z")
Make sure both your sprokects are tight (circuled) push the frame back, and tighten the 2 little screws on BOTH sides ![image](https://forum.lightburnsoftware.com/uploads/default/original/3X/5/b/5be95fd759c5142506245e1dc593bf157162c792.jpeg) ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 10:50pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/15 "2024-01-11T22:50:42Z")
After I did this… [Video 2](https://1drv.ms/v/s!ApaWktaLaF0hi4B67h-lCYm4wC_cwA?e=bSmGMx) Resulted on this 😂: ![Imagem do WhatsApp de 2024-01-11 à(s) 19.50.07_1924d962](https://forum.lightburnsoftware.com/uploads/default/original/3X/8/0/802cec6f16f07d6f1951ab6f988576d99186d71f.jpeg) ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 10:52pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/16 "2024-01-11T22:52:18Z")
your machine has homing correct? Move head to center, power on machine record its homing cycle? I still think yoru y belts need a lot of tightening ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 11:21pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/17 "2024-01-11T23:21:55Z")
I did another test and it got worse, so I had to loosen the right side a little, which I realized was resisting sliding. So I recorded this: [Video 3](https://1drv.ms/v/s!ApaWktaLaF0hi4B8IigzXwHXrJfmhg?e=osU9y5) And the result: ![1705015047177](https://forum.lightburnsoftware.com/uploads/default/original/3X/b/e/be7f708023c93fdc9c1a7c8eec714f25c85d60e5.jpeg) ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 11:24pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/18 "2024-01-11T23:24:21Z")
Observe your video carefully, you will notice the left hand side (bottom side when watching the vide) is “lagging” behind the upper side This means your sprocket - the metal round thing where the belt rides on - is LOOSE of the shaft This means your left hand side of the machine is just being dragged ![image](https://forum.lightburnsoftware.com/uploads/default/original/3X/b/8/b87e56aee206176b129c2aea3abeb45d4e99ca30.jpeg) Notice image I highlighted a circle the sprocket has 2 tiny screws, make sure they are firmly tight after you push the machine al the way to the back or the front so both wheeels are touching the end (this ensure squareness) ---
**Author:** ![gilaraujo](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/gilaraujo/32/71745_2.png) [@gilaraujo](https://forum.lightburnsoftware.com/u/gilaraujo)\ **Post date:** [January 11, 2024, 11:26pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/19 "2024-01-11T23:26:45Z")
Let me know if that made sense, if not i can explain in a dif way please! ---
**Author:** ![carolnitra](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/carolnitra/32/110614_2.png) [@carolnitra](https://forum.lightburnsoftware.com/u/carolnitra)\ **Post date:** [January 11, 2024, 11:31pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442/20 "2024-01-11T23:31:24Z")
You mean that one? ![Imagem do WhatsApp de 2024-01-11 à(s) 20.31.02_6e457815](https://forum.lightburnsoftware.com/uploads/default/original/3X/9/7/977ee4b979da3dba73f80881ed66c2663c9b81a2.jpeg) [Next page](https://forum.lightburnsoftware.com/t/sculpfun-s9-strange-error/124442.md?page=2)