# USB disconnection issue: solved(?)

**URL:** <https://forums.maslowcnc.com/t/usb-disconnection-issue-solved/10480>\
**Category:** Troubleshooting\
**Created:** [July 11, 2019, 4:56pm UTC](https://forums.maslowcnc.com/t/usb-disconnection-issue-solved/10480 "2019-07-11T16:56:18Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![Gero](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/gero/32/17487_2.png) [@Gero](https://forums.maslowcnc.com/u/Gero)\
**Post date:** [July 12, 2019, 6:51pm UTC](https://forums.maslowcnc.com/t/usb-disconnection-issue-solved/10480/15 "2019-07-12T18:51:30Z")

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Nice parts, could use some of those 🤪

 ![image](https://canada1.discourse-cdn.com/flex031/uploads/maslowcnc/original/2X/7/7274f8ebc205e7833aad6845d7c2d9c981fba256.png)

How fast you can plunge into the material (G1) is limited, however moving out (G0) can be as fast as the setup permits. I’ve used the original Z-motor, tooth-belt with 25 teeth on the z-motor and 20 teeth on the c-beam side. The c-beam has a lead of 2mm, times 4 treads = 8mm. The pulley reduction giving me 2 more mm, i ended up with 10mm per motor rotation. My Z moves max 180mm/min = 3mm/sec (for some reason translating to F188 in g-code)

I could easy see that speeds up to 600mm/min could run well, not for plunging in, but on the way out.

> [@Is the feedrate for Z-Axis hard coded? (solved)](https://forums.maslowcnc.com/t/is-the-feedrate-for-z-axis-hard-coded-solved/8187/3):
>
> As for tonight i’m hoping to do the ‘sled balancing act’ tomorrow and add some weight plus getting a look and feel with first moves. Maslow sled the 3rd (low CGZ):

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