# 4.1 Calibration Initial Fitness **URL:** \ **Category:** Troubleshooting\ **Created:** [April 29, 2025, 4:29pm UTC](https://forums.maslowcnc.com/t/4-1-calibration-initial-fitness/23950 "2025-04-29T16:29:05Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![danFromJersey](https://avatars.discourse-cdn.com/v4/letter/d/8dc957/32.png) [@danFromJersey](https://forums.maslowcnc.com/u/danFromJersey)\ **Post date:** [May 1, 2025, 2:48pm UTC](https://forums.maslowcnc.com/t/4-1-calibration-initial-fitness/23950/5 "2025-05-01T14:48:20Z")
I got a successful calibration on the 2nd attempt. Even the first attempt was way better than any previous attempt. On the first attempt, it made it through the initial 5 point calibration and then the 3x3 but got stuck on the 5x5. EVERY previous calibration had failed on this initial 5 point calibration. On the second attempt, it made it all the way through and saved everything the to maslow.yaml file, which I immediately backed up!! I think the only step that was different in the video vs what I had been doing is… **Before starting calibration, pull the sled so that the Tl and Tr belts are tight** I’m pretty excited to get started on a few test cuts!! Thanks again to @bar and @dlang for your help. I’m sure I’ll have more questions, but I’m feeling good about the progress so far! --- _[View the full topic](https://forums.maslowcnc.com/t/4-1-calibration-initial-fitness/23950)._