# DXF files will not upload to my CNC Quilter
**URL:** https://discourse.shapr3d.com/t/dxf-files-will-not-upload-to-my-cnc-quilter/33675
**Category:** Modeling Questions
**Created:** [September 9, 2024, 6:13pm UTC](https://discourse.shapr3d.com/t/dxf-files-will-not-upload-to-my-cnc-quilter/33675 "2024-09-09T18:13:10Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@ashough](https://discourse.shapr3d.com/u/ashough)
#### Post date: [September 9, 2024, 6:13pm UTC](https://discourse.shapr3d.com/t/dxf-files-will-not-upload-to-my-cnc-quilter/33675/1 "2024-09-09T18:13:10Z")
When I attempt to export DXF files of my sketches and upload them to our CNC Quilter, I get the following error: “Error: Exception of type System.NullReferenceException was thrown.” I am working with the quilter company to better define the error, but dutch I discovered that the SHAPR3D files allow for extremely large axes (+/- 1x10E20) in all three directions. In the text version of the .dxf file, this is called $extmin and $extmax, I have uploaded a screenshot of three files the first two are mine, and the third is from our supplier of the machine. My question is can I make an adjustment inside SHAPR3D to limit these quantities?
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### Author:  [@ashough](https://discourse.shapr3d.com/u/ashough)
#### Post date: [September 10, 2024, 3:31pm UTC](https://discourse.shapr3d.com/t/dxf-files-will-not-upload-to-my-cnc-quilter/33675/2 "2024-09-10T15:31:01Z")
Disregard this request. The issue was a conflict in Sketch Name with the CNC’s software.