# Avid 4848 pro jerking, skipping and clunking **URL:** \ **Category:** General Chat\ **Created:** [October 11, 2023, 4:36am UTC](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540 "2023-10-11T04:36:13Z")\ **Posts on this page:** 4\ **Page:** 2
**Author:** ![Rafe](https://avatars.discourse-cdn.com/v4/letter/r/e495f1/32.png) [@Rafe](https://forum.avidcnc.com/u/Rafe)\ **Post date:** [February 18, 2024, 7:26pm UTC](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540/22 "2024-02-18T19:26:33Z")
Have you solved your issues with stuck lines of code, with the spindle running? I am having the same travel and spindle problem, with sporadic clunks. I have run my machine for several years and am just now experiencing this. I have been in contact with AVID and they have not had a solution yet. On my end, computer speed or capacity is not the issue. Also I file size doesn’t affect whether this occurs or not. ---
**Author:** ![Srdrgz12](https://avatars.discourse-cdn.com/v4/letter/s/838e76/32.png) [@Srdrgz12](https://forum.avidcnc.com/u/Srdrgz12)\ **Post date:** [February 18, 2024, 8:06pm UTC](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540/23 "2024-02-18T20:06:41Z")
I wouldn’t say I found a solution but more of a work-around. I only had those problems when I had a large g code file loaded and mach 4s toolpath preview was active. Now, I just make sure the toolpath preview window is NOT active and everything has been working fine. I haven’t tried mach 4 on a newer / faster computer yet but I suspect it fix the issue I was having. You can do a lot of trouble shooting, as you probably already have but I would probably start by installing mach 4 on a different PC because that’s probably the simplest thing to try. I know you said it’s not a computer speed or capacity issue but that still doesn’t necessarily rule out you computer. Try mach on a different PC, even if it’s a slower/older one. If it works then you know it’s your current PC that’s caused your issues. If not, then at least you eliminated your as being the problem ---
**Author:** ![Rafe](https://avatars.discourse-cdn.com/v4/letter/r/e495f1/32.png) [@Rafe](https://forum.avidcnc.com/u/Rafe)\ **Post date:** [February 18, 2024, 9:26pm UTC](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540/24 "2024-02-18T21:26:18Z")
Thanks yeah for sure, I was considering formatting an older PC I have that I think would still run fine, and at least determine if it’s the PC. I’ve looked through some other threads and it seems like your suggestion has a good chance of being a solution. ---
**Author:** ![pviljoen1](https://avatars.discourse-cdn.com/v4/letter/p/bbe5ce/32.png) [@pviljoen1](https://forum.avidcnc.com/u/pviljoen1)\ **Post date:** [September 25, 2024, 7:53am UTC](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540/25 "2024-09-25T07:53:15Z")
I run pretty large files on my cnc. One of them takes 17 minutes to load and render. After solving the static issue through proper grounding each part, I only get this issue, sometimes on days \> 38deg C. It usually means that some part is not properly grounded. Else it works fine. NOTE to CNC Support. I believe you should include a proper grounding wires for all the moving parts of the CNC. I am using a old laptop without any problems. but it is dedicated tot he my CNC and no outside lan connection. [Previous page](https://forum.avidcnc.com/t/avid-4848-pro-jerking-skipping-and-clunking/2540.md?page=1)