PMDX Forum
General Category => General Discussion => Topic started by: smcelhaney322 on August 05, 2017, 03:57:55 PM
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I have a constant problem with motion underrun (error 7). I seen comments in posting that it may be due to a slow computer and to increase the queue in the PDX configuration. My computer is not slow (dell inspriron 5000 series) and I have increased the queue to near max. In runs for 8 minutes before hitting the underrun, then it may run 2-6 minutes before having that error again.
Any suggestions? My pdmx cable is connected straight to my computer. Does it matter if it is a usb 2.0 or 3.0 port?
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The SmartBOB family of products are USB 2.0 and backward compatible with USB 1.1.
If connected to a USB 3.0 port they will run in USB 2.0 mode.
Even though your computer is fast, it is possible that your G code contains segments
so short that there is not sufficient time to transmit them relative to how long the
movement should take. Look to see if you have G code moves that are tiny, such
as less than a couple of thousandths of an inch.