Dave,
Thanks for the kind words, I was going to post a pdf file that shows the jgro plan sheet for the z-axis but for some reason I cannot do that. I will pm you the pdf file. Essentially, the parts/Item No. 5 needs a notch cut into the side opposite the Z bearing holders. I hope this helps and if I remember I will snap a quick photo and post of my z axis BL nut.
Tom |