Originally Posted by BobF  gepato,
Mcmaster has some 5/16" 8 2-start acme which you could probably swap in fairly easily. That works out to 4 tpi and should double your speed or better, and still fit your bearings. |
Thanks for the tip. probably I'll be using the machine as it is for a while to get accustom with all the other stuff (Mach3 tunning, G-Code, etc). ...and probably I'll start building a better version of the current one (definitely with ACME screws). Considering that I worked only in my spare time (not much) and it took less than 6 weeks to complete it I think it's worth thinking to do it from scratch.