Thanks. I will take pictures of the tap. Its very basic, I did not even bother to turn it down. Consider it a bottoming tap
. I do work in a machine shop, not sure I would call myself a machinist though.
In all actuality, its just a 1" long piece of thread that came off a thrust tube. I milled 4 flutes into it with my 1/4" EM. I used the mill to start the threads perfectly straight and square. Its not as good as the real tap I bet, but hte threads cut fine into aluminum. I meant to take pictures of my stuff today, never got around to it.
Got drivers coming in tomorrow, 6ft of 1/2"x1/2" aluminum, and an extra stepper motor from home shopCNC sometime soon also. Off hand, thats everything else I need for the conversion. Besides some misc. stuff. I am going to try to get everything to fit inside the X3's electrical cabinet, It will be pretty cramped!
Read this post:
http://cncfusion.com/phpBB2/viewtopic.php?t=7
As for travel. I should get 6" of the Y, and a little over 16" of X. Also, I dont think I am going to bother with dual ballnuts. I want all the travel in X that I can get, and I think it will be okay since my backlash is consistent. If I find it to be a problem, I will add more nuts.