Router causes jerky movements
When running my DIY CNC Router, everything seems to run OK, until I turn on the Router. Then movements are jerky. For example: Code says G0 X10 Y6, but machine makes several short movements to go there. Position seems correct at end of movement. I was thinking electrical noise. I moved router power to a different circuit and frequency of interruptions went down but are still there .After I started thread, I found that the USB connection was intermittent, but changing cables did nothing. Is my problem more likely Electrical noise, or vibration shaking a connection on the board lose?
Re: Router causes jerky movements
Is the spindle of your machine a 3-phase motor run by a VFD, or a regular hand router? Have you solved the problem of the intermittent USB signal?
Re: Router causes jerky movements
It sounds like you've solved your problem, then, or at least isolated it. Just replace whatever your controller is using to connect to the USB port,
Re: Router causes jerky movements
The spindle is a DeWalt compact router. The CNC runs properly through the entire code. When I turn on the router the USB connection cuts out. The light on the interface board goes out and I hear the disconnect tone from the PC. Wiggling the USB cable makes no difference. Any suggestions?
Re: Router causes jerky movements
Quote:
Originally Posted by
Glen1Cafferty
The spindle is a DeWalt compact router. The CNC runs properly through the entire code. When I turn on the router the USB connection cuts out. The light on the interface board goes out and I hear the disconnect tone from the PC. Wiggling the USB cable makes no difference. Any suggestions?
Is the USB cable Shielded with ferrites on each end, this can help, for a test you could shield it with some tin foil
Does your router have a Ground or is it an isolated connection with a 2 pin / blade plug
