Homing Retraction Not Working (1 reply)

I have an older UP! printer that had no electronics (I got it that way from Craigslist) and I've been restoring it with the RAMPS 1.4 board. It has been going well an I've made a few prints and so far they have been okay. One of the issues I've been dealing with is I cannot get retraction to work when homing. With this printer, the print head only moves in the X axis and the Y axis is cantalievered on the Z axis. The Z axis homes to the bottom, away from the print head. Right now, I have to physically hold the Z axis up before I send a home command so that it does not start past the trip point of the homing switch, which is mechanical.

There is no sign that any of the axis are retracting. I've attached my configuration files. Anyone have any suggestions on what to do to get it working?

Thanks,

Veen