Oh crikey. It's all gone tits up now. I was cutting a roughing file on a 3d relief. It has 40mm depth which the router was due to cut in 2 x 20mm passes. When it got to the end of the first pass, instead of moving back 500mm to the origin to begin the second pass, it only moved back around 30mm and started the second pass in totally the wrong place. When I stopped the program and returned to origin, it had set itself a new origin where the second pass started. Rats!

So, something is amiss. It could be one of several things;
1)in trying to find how to run large files on the pendant I inadvertently pressed 'format' which deletes all the settings on the pendant memory. I reset them but may have missed something.

2) deskproto CAM has a bug in the sub-seg feature perhaps.

3) My new laptop which is running the CAM is messing it up. It is being replaced under warranty tomorrow as it's playing up.

I am going to try cutting a last known good file which should help identify whether it's the pendant or the file. Any advice much appreciated.