How do I send my finished work to my 3018 machine?
Machines not made by Carbide 3D are off-topic here (but we will help w/ Carbide Create).
The usual program mentioned for this is “Candle”.
If you use cc to create your project there are two post processors, generic and gbrl. Try those for your gcode. The sender should be supplied by the oem or at least a suggestion for a sender.
Did a quick google search and Universal gcode sender popped up quite a few times.
CM is only for c3d machines.
There’s a 22,000+ facebook group dedicated to 3018s, you can ask there. Or buy a ShapeOKO 4, it’s a much better machine