MYCNCUK - General Discussion https://www.mycncuk.com/ General Discussion for anything not related to or covered by our other forums. en Thu, 25 Jun 2026 09:24:04 GMT vBulletin 2 http://www.mycncuk.com/images/misc/rss.png MYCNCUK - General Discussion https://www.mycncuk.com/ <![CDATA[Problems with mach3 and cslabs controller - jittering & losing connection frequently.]]> https://www.mycncuk.com/threads/16092-Problems-with-mach3-and-cslabs-controller-jittering-losing-connection-frequently?goto=newpost Thu, 18 Jun 2026 20:05:20 GMT I know I haven’t posted for a while, but my machine has been working fine, and life has been busy. I have a developing problem, sometimes the... I know I haven’t posted for a while, but my machine has been working fine, and life has been busy.
I have a developing problem, sometimes the machine jitters like it’s catching up with data, other times more commonly mach3 loses connection with cslabs and it stops mid cut. I am using stepper motors. The jittering occurs on large complex 3d NC programs, mach3 losing connection is random when it occurs.

I am using a windows xp laptop and connecting via an Ethernet cat 6 cable. At first I thought it was the Ethernet ports - poor connections. So I replaced my interfaces with the machine with screw down Ethernet connects made by Neutrik for microphones etc, also a new cable which is shielded ( last on was to) The problem hasn’t gone away.

I cannot seen to find much information online about setting to tweak. Most popular suggestion was to use cslabs interface instead of mach 3.
I have rebooted my laptop a few times and cleaned all the contacts in the data path, so I am now not sure what to look at next. I haven’t changed any of the settings from those Dean helped me put in 9 years ago.
Any tips to resolve this would be appreciated ]]> General Discussion Stressedwoodman https://www.mycncuk.com/threads/16092-Problems-with-mach3-and-cslabs-controller-jittering-losing-connection-frequently stress relieving cnc frame https://www.mycncuk.com/threads/16064-stress-relieving-cnc-frame?goto=newpost Tue, 31 Mar 2026 13:18:49 GMT Hi, my name is Farzad and I am from Iran. I am building a DIY CNC machine for myself, and my goal is to make money with it. I designed it in... Hi, my name is Farzad and I am from Iran.
I am building a DIY CNC machine for myself, and my goal is to make money with it.
I designed it in SolidWorks and bought the necessary items (I also made some purchasing mistakes).
This is my design (it’s mostly inspired by a YouTube channel not an engineer).
The design is simple and is made from a 250mm × 250mm × 1300mm iron box with 8mm thickness. The material is called ST37. I am going to reinforce it with some + shaped plates and weld them inside the iron box.
For the linear rail placement, I bought some 35mm ST37 plates that I am going to attach to the main iron box using bolts and epoxy.
These plates were cut from a very large plate with a torch.
Stress relieving these parts is costly in heat treatment furnaces.
Can I use VSR instead of an oven?

I asked ChatGPT about it, and it suggested that I can grind off the torch-cut areas first and then use VSR on them, because most of the residual stress is concentrated on those cut edges.
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]]> General Discussion Farzad https://www.mycncuk.com/threads/16064-stress-relieving-cnc-frame