In the following text it will be described in detail how to control spindle with USB-MC motion controller using PWM or STEP/DIR signals. Employment Opportunity / RFQ (Request for Quote).Besides relays that are used for switching spindle on and off, Mach3 supports two ways for controlling spindle revolution speed.I purchased a ATC changer to mount on a 65mm spindle. Once I get everything back working like before I start the project of implementing ATC. What I am doing is like what is shown in the china videos, using the LAN port on the computer to connect to the NVEM and using a USB wireless adapter to connect to my LAN. I wish the NVEM had a configuration setup where I could assign it an IP, Subnet, VLAN etc. I did get the controller working with the computer! disable the firewall! Now I need to go back through and enable the firewall but allow the NVEM through. Plus at $20 a key it is cheap, and for what I need the computer todo it is perfect. I am using Win 7 because I have several old compact form factor desktops that it runs nicely on. I found it was easier to use the Arduino and an LCD display to control relays and show status of the machine. Prior to my computer crashing I was in the process of interfacing an Arduino to the NVEM controller. The translation in the manual is terrible not to mention vague in description. I have to agree the NVEM/China PLC or whatever else they brand the controller as is poorly supported. My personal opinion, I would NOT waste any more time on a unsupported product.
Even in their newer industrial controller version NVEC400 manual they don't talk about connecting to a network. I have NEVER received an acknowledgement or an email from them. One more thing, I went to the NVEM websites ( and sent multiple emails to their support people. It modernizes the UCNC Software with neat windows buttons, and some consolidated screens. I also saw a new screenset for the UCCNC software from CNC Woodworker. It has all of the features of MACH3/4, but not based on out dated technology (parallel port). I also am looking seriously at the UCCNC Software for $60. It connected easily to the computer, and now I am waiting for the BOB to connect it to my CNC machine.
I don't have any computers left with XP or even Win 7 on them.Īfter trying for more than a week with every trick I could find, I gave up on the NVEM as a waste of time
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