rebuilding jgro cnc

[tbenefi33]

Now I know why he used MDF wood that stuff realy heavy exspecialy
4' x 8' sheet and trying to push that thing around lows for git it come
close to whiping out a few displays...LOL

I'm gathering up parts and was wondering how many pices can I get out of a sheet 4' x 8' MDF last time I didn't use the sheet a playwood I just got it size and went from there.

[tbenefi33]

In stead of using the 1/4" X 20 lead screw what would yall recamend ?

Read some where somebody said that 1/4 " x 20 lead screw was kind of slow.

[silentreaper]

Originally Posted by tbenefi33 In stead of using the 1/4" X 20 lead screw what would yall recamend ? Read some where somebody said that 1/4 " x 20 lead screw was kind of slow.

Extremely slow, your steppers have to turn 20 time to move an inch, thats just too much, you'll get more torque from lower rpm's.

I recommend using ACME threads for you lead screws, 1/2" seems to be the flavor of choice.