Strange problem with Repsnapper

I just finished building my Prusa and managed to tweak the settings in repsnapper to get some decent prints.

The only problem is the dimensions in the z-axis seem to be two times greater than is shown on the STL file or the gcode trace in repsnapper.

For example, when I try to print a prusa base vertex with foot, the holes for the threaded printed by the x and y axes are the perfect size and completely round. The the hole built in the z axis is oval and twice as wide as the xy hole. I dont know what I need to do to tweak this.

Thanks!

I'm starting to suspect that it is printing two layers for each one it should be printing, but I'm not sure how to tell in the code if its doing it.

Any thoughts?

Ok I printed a 40mm test cube.

It came out 50mm in the xy axes and 100mm in the z axis, what gives?

You haven't been doing your homework?

It sounds like you skipped the calibration step in firmware setup.

go to the IRC channel, and look for me (Wildseyed) there, and I will walk you through.

Make sure you have a digital caliper. We will need to take precise measurements.