it was a new pc about for the machine maybe just over a year and a half ago running windows 8.1 64 bit I think. the machine is connected via Ethernet cable to a csmio motion controller
I guess if there is anything I can turn off or get rid of on the pc its worth it to rule it out? (im not much of a computer person though)
Running via ethernet on a 64bit machine its unlikely to be overheads as Mach3 will not be running the parallel driver to generate pulse the pulse generation is I believe carried out entirely by the CSMIO controller, apart from virus software or windows itself maybe starting housekeeping or attempting to enter power saving mode I cannot think of much that would likely affect it in that way. Turn of any virus software if running and disable power saving and screen savers not much more you can do PC wise. If it occurs after that you may have to look elsewhere for the problem, I haven't used the CSMIO although have one ordered so cannot really advise regarding the controller I would just double check earthing and maybe add EMI / RFI filter if not already fitted.
Sounds very much like PC related rather than machine. Make sure everything like Updates, Screen savers, Energy saving etc is turned off.
Have you installed any software lately that's trying to phone home.?
It's more likely be something silly like this than PSU going down but like been said could be anything so don't trust it and find it before using again.
Lucan07 your wrong about mach3 not needing much graphics power. Infact it's one of the main reasons people have trouble with mach3 when using PP or lower spec PC's. Just clicking in toolpath screen would lock mach up on some PC's with poor or low graphics. This Big area where mach4 as improved.
While External controllers do take lot of the work load off Mach3 it can and does still happen with them. Even the Cslabs do it albeit to much lesser degree.
Charlie While I think it's more PC related just for precautions sake I'd go over the wiring and check for lose connections or any nipped cables etc.
ok many thanks every one i will have to start looking and checking those things though its going to be tricky to know with it being a little intermittent
I have heard of a few times where running from memory stick/external drives that has caused problems.
There are settings where USB will go into a low energy/power saving mode after a set time of inactivity, and if it does, it takes a little bit longer for Mach to read the next chunk of code, which can cause it to stall briefly. Copying the file to PC should eliminate that issue though.
Also, as Jazz mentions, ensure all the power settings are set so the PC is always on. On modern PCs, you usually have to create a new power plan with everything set to always on (Control Panel -> Power Options)Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
The other thing I think may cause issue is the "Look ahead" buffer size in Mach3 or the network card setting. He is using Ethernet to communicate so if the card is allowed to sleep it may cause issues.
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