# Connection problem with z axis motor **URL:** \ **Category:** Hardware\ **Created:** [September 8, 2017, 5:16pm UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641 "2017-09-08T17:16:54Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![rclemence](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rclemence](https://forums.maslowcnc.com/u/rclemence)\ **Post date:** [September 8, 2017, 5:16pm UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/1 "2017-09-08T17:16:54Z")
Hi, I just constructed the temp frame for the Maslow cnc. It’s taken me a while to build it because of space to build it and time I had to put into it. It works great I am very happy with it. But the z axis does not move, I turned on the setting in ground control using the .87 version of firmware and ground control plus I have it plugged into port 2. I feel that the motor is not getting current, so I don’t know if the problem is the motor, wire, or control board. I have made successful cuts manually moving the z axis. ---
**Author:** ![rclemence](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rclemence](https://forums.maslowcnc.com/u/rclemence)\ **Post date:** [September 8, 2017, 10:36pm UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/3 "2017-09-08T22:36:35Z")
I am running .87 ground control and firmware Bar suggested I run a motor test and it worked. So every thing works. But still won’t move or make noise like it’s trying to move when trying to move z axis in ground control. Which makes me think it’s software, or a setting I’m not turning on. I did turn it on in the settings of ground control. I’ll try to update the firmware and ground control. ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [September 9, 2017, 12:31am UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/4 "2017-09-09T00:31:46Z")
So you see the z motor turn when doing the motor test, but no movement when using the z-axis pop-up to run it out or in? ---
**Author:** ![rclemence](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rclemence](https://forums.maslowcnc.com/u/rclemence)\ **Post date:** [September 9, 2017, 12:44am UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/5 "2017-09-09T00:44:14Z")
Blurfl, yes I have updated the firmware and ground control from .87 to .88 that did the trick. I can now move z axis with ground control. Next step is to use the z axis in a cut. Thank you every one for your advise. ---
**Author:** ![rclemence](https://avatars.discourse-cdn.com/v4/letter/r/e19adc/32.png) [@rclemence](https://forums.maslowcnc.com/u/rclemence)\ **Post date:** [September 9, 2017, 12:46am UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/6 "2017-09-09T00:46:50Z")
Do I need to recalibrate machine dimension after updating ground control and firmware? ---
**Author:** ![dlang](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/dlang/32/859_2.png) [@dlang](https://forums.maslowcnc.com/u/dlang)\ **Post date:** [September 9, 2017, 1:10am UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/7 "2017-09-09T01:10:18Z")
not always, but in this case, probably. If you mark the chain links where they should be when calibrated, you can do a manual calibration and put in the proper numbers. This is significantly faster to do. ---
**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\ **Post date:** [September 9, 2017, 1:59am UTC](https://forums.maslowcnc.com/t/connection-problem-with-z-axis-motor/641/8 "2017-09-09T01:59:52Z")
If your sled moves to the correct location when you use the Action/Return-to-Center, you’re probably OK as is. Painting those ‘king links’ is a real timesaver, though 😄