# Sled not Keeping up **URL:** \ **Category:** Troubleshooting\ **Created:** [November 13, 2018, 12:26pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701 "2018-11-13T12:26:21Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Spartandante](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/spartandante/32/9765_2.png) [@Spartandante](https://forums.maslowcnc.com/u/Spartandante)\ **Post date:** [November 13, 2018, 12:26pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/1 "2018-11-13T12:26:21Z")
I was running a cut last night and about halfway through (a couple hours) i kept getting the alarm that the sled wasn’t keeping up. i ran the test motors /encoders test and it failed in direction 1 for both motors the first time. i then ran the test again and every thing passed. I originally thought that maybe the sled was to heavy or something but even if i take the load off of the chains by lifting up the sled and hitting home it gives me this error almost immediately. I did check the connections of all motors, to the motors, to the shield, the power supply and the usb cable. any suggestions? ---
**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:** [November 13, 2018, 12:56pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/2 "2018-11-13T12:56:45Z")
You can increase the limit that triggers this message in the advanced settings, however I think I’d want to be sure that no mechanical or wire issues are triggering it. That the test motors /encoders failed worries me. ---
**Author:** ![Spartandante](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/spartandante/32/9765_2.png) [@Spartandante](https://forums.maslowcnc.com/u/Spartandante)\ **Post date:** [November 13, 2018, 1:20pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/3 "2018-11-13T13:20:05Z")
at this point id like to turn it off and finish the cut im on then figure out the issue i will probably do that when i get home and hope that there are no major issues… its strange that the motors failed their test the first time but the second time passed. i wasnt looking at the sled when i ran the first test i was watching the computer, but it sounded like it moved in all directions. ---
**Author:** ![Spartandante](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/spartandante/32/9765_2.png) [@Spartandante](https://forums.maslowcnc.com/u/Spartandante)\ **Post date:** [November 13, 2018, 1:22pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/4 "2018-11-13T13:22:20Z")
the last check i did i noticed it was failing with the diagonal movements… it sounded like the left motor was supposed to be moving but it didn’t. ---
**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:** [November 13, 2018, 1:22pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/5 "2018-11-13T13:22:53Z")
In GC click on ‘settings’, then on the grey bar where it says ‘maslow settings’. A menu should show up for ‘advanced settings’. At the bottom change from 2 to 20 or so. ---
**Author:** ![Spartandante](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/spartandante/32/9765_2.png) [@Spartandante](https://forums.maslowcnc.com/u/Spartandante)\ **Post date:** [November 13, 2018, 1:28pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/6 "2018-11-13T13:28:31Z")
thats what i plan on doing when i get home. could the position be off somehow because the computer im using is fairly slow? i had a laptop i hadnt used for a while that i decided to dedicate to the machine. ---
**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:** [November 13, 2018, 1:31pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/7 "2018-11-13T13:31:35Z")
I don’t think the laptop is the problem. Could be a loose encoder or a tricky wire that sometimes looses contact. ---
**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:** [November 13, 2018, 10:42pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/8 "2018-11-13T22:42:23Z")
This is a warning, it does not block cutting, you should be able to just ignore it. ---
**Author:** ![Spartandante](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/spartandante/32/9765_2.png) [@Spartandante](https://forums.maslowcnc.com/u/Spartandante)\ **Post date:** [November 14, 2018, 1:59am UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/9 "2018-11-14T01:59:02Z")
Unfortunately it was stoping the sled ever half inch or so. After doing some research I ended up lower the feed rate from 950 to 800 and doing what Gero has suggested with the positioning settings. Seems to be working fine now! ---
**Author:** ![GrahamBuildsStuff](https://avatars.discourse-cdn.com/v4/letter/g/8c91f0/32.png) [@GrahamBuildsStuff](https://forums.maslowcnc.com/u/GrahamBuildsStuff)\ **Post date:** [October 23, 2022, 2:58pm UTC](https://forums.maslowcnc.com/t/sled-not-keeping-up/7701/11 "2022-10-23T14:58:27Z")
This happened to me yesterday and it turns out one of the motor cables was ever so slightly unseated.