As far as I know, the printer wont respond without modules attached. A simple workaround is to keep the cnc/laser module attached … probably it would be better to use laser and set the power to something like 0 or 1% (not sure if it still burns at this power)
Hi all, Thanks for your help. I went back through various posts and discovered that the CNC module must be attached, or at least plugged in. This makes sense - Now it would be great to create a module with a pen holder, cordinates could be transmitted, but there would be no motor. Then pens, pencils, etching needles etc. could be attached and away you go.
Or perhaps something like this: [https://www.thingiverse.com/thing:3076422]
Maybe an RJ45 jack with a dummy load could be integrated with slight modification eliminating the need for the CNC or Laser module being attached.