# CNC Control issues

**URL:** <https://forum.sienci.com/t/cnc-control-issues/26947>\
**Category:** 📄 General\
**Created:** [August 19, 2026, 8:53pm UTC](https://forum.sienci.com/t/cnc-control-issues/26947 "2026-08-19T20:53:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fennelljc](https://forum.sienci.com/letter_avatar_proxy/v4/letter/f/7ea924/32.png) [@fennelljc](https://forum.sienci.com/u/fennelljc)\
**Post date:** [August 19, 2026, 8:53pm UTC](https://forum.sienci.com/t/cnc-control-issues/26947/1 "2026-08-19T20:53:56Z")

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Hi,

I am having issues with gSender v 1.62

I am using VCarve Pro

Genmitsu 4040

Also the CNC is behaving odd. When I run the simulator in vcarve pro the file works fine

When I run the file in gSender I receive the errors one is:

the following line caused an error 2: 'G1X3.7997Y7.884270.0180 ’ IN gSender.

also the machine at some point has a mind of its own causing it to move the spindle away from the carve in a straight line or jusy bore down into the wood.

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**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\
**Post date:** [August 19, 2026, 9:26pm UTC](https://forum.sienci.com/t/cnc-control-issues/26947/2 "2026-08-19T21:26:31Z")

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@fennelljc Welcome to the group John.  
That gcode line is strange it seems to me. The Y move has two decimals in it. Is this really the line, or is there a transcribing issue?  
Is this the only file that is causing you grief?