# Last cut is oval shaped solved **URL:** \ **Category:** Troubleshooting\ **Created:** [September 14, 2018, 2:24am UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697 "2018-09-14T02:24:00Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![doug2](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@doug2](https://forums.maslowcnc.com/u/doug2)\ **Post date:** [September 14, 2018, 2:24am UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/1 "2018-09-14T02:24:00Z")
Hi All I started my first sled and the computer shut down. I did not know how to get it to restart on the first sled. Then I had some trouble with software so I updated Firmware and GC. Started the second sled and it came out egged shaped. ![maslow%2010](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/5/54330409a3c125ed9e7977f7082cbcdcc301600c.jpeg) Did I lose calibration? Doug ---
**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:** [September 14, 2018, 5:16pm UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/2 "2018-09-14T17:16:04Z")
You should just need to do **Actions -\> Set Chain Lengths Automatic**. When the computer shut down while the machine was moving, the machine forgot where it was. ---
**Author:** ![doug2](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@doug2](https://forums.maslowcnc.com/u/doug2)\ **Post date:** [September 14, 2018, 10:58pm UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/3 "2018-09-14T22:58:28Z")
I went to actions set chain lengths automatic. I pushed the automatic button but nothing happened. then I turned the sprocket until it was centered, I put marks on the chain and sprocket when I did my first calibration. Then I pushed set zero and went to the next page that said adjust chain length. I was already at the right position. so I pushed finish. Now when I try to run the machine it says can not find valid machine position. ![maslow%2011](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/f/fa1d4cc5e913be55d6836072944a8a97dabf6abe.jpeg) ![maslow%2012](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/b/b215c845e6bd8d414d150277272a57f6b9531889.jpeg) ![maslow%2013](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/f/ff43c5f17ca85ad7e8db7cb1838c63484a93f90c.jpeg) ---
**Author:** ![doug2](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@doug2](https://forums.maslowcnc.com/u/doug2)\ **Post date:** [September 15, 2018, 5:08pm UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/4 "2018-09-15T17:08:18Z")
Hi Did I have to remove chains from the sled and put them on the sprocket then hit set chain lengths automatic? I know everything is in the right place can I do a manual set? ---
**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:** [September 17, 2018, 5:55pm UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/5 "2018-09-17T17:55:49Z")
The automatic process is expecting the chains to start with just one link on the sprocket (see the pictures on the bottom) and then the chains will extend from there. You are getting that error because it thinks each of your chains are only 1.6mm long right now and it can’t figure out how to compute the position with those numbers ---
**Author:** ![doug2](https://avatars.discourse-cdn.com/v4/letter/d/e19b73/32.png) [@doug2](https://forums.maslowcnc.com/u/doug2)\ **Post date:** [September 19, 2018, 12:34am UTC](https://forums.maslowcnc.com/t/last-cut-is-oval-shaped-solved/6697/6 "2018-09-19T00:34:54Z")
Hi Thanks I reset the chains an it cut my sled out. Doug