X and Y axis movement anomaly

Hi All,

I have just loaded latest version of Marlin to delta printer using Delta Generic configuration files from examples as basis.

Printer homes OK to endstops and Z axis seems to function OK in Z- and Z+ directions.

HOWEVER

When I try to move either the X or Y axis the carriage on the rear tower makes a large Z- movement and then goes back up in Z+ to the correct position whilst the other two carriages go directly to the correct position.

I have reviewed the configuration.h setting and cannot find anything obvious amiss so any ideas would be most appreciated.

Thanks in advance

A Delta doesn't work with sample configuration files. ( at least it would be a big coincident )
You have to calibrate it.
I don't use Marlin for Deltas so I can't help you any further, but there is a Delta subforum and a Marlin subforum, where you can get help.