Awesomeness wrote:You should be able to get into the 30-50ipm range. It really is true that about 90% of the problems turn out to be mechanical (something slipping, rubbing, etc.), despite the first several posts swearing it isn't. Everyone just wants to start off blaming the electronics, because they are an invisible "unknown".
How much is it getting off by?
Ha, yeah, i MADE sure that all the mechanical parts were working they way they should...the best i could at least. I even ended up remaking the Z motor mount blocks.
When i first discovered it it was off by about 1/2" after running for 15 minutes or so. How i got this number is i would run a 3d roughing program for some time (air cutting) then hit the e stop and return to zero. i would be off 1/2" in the negative direction (center start).
After taking some advice from someone at work and from CNCzone i unplugged the y and z and ran the program. my problem went away. i plugged everything back in and just did some rapids in the x direction, just back and forth 10 times or so. everything seemed fine. i tried my 3d roughing again (cutting air) and everything seemed fine.
I decided to give it a go and hope for the best. I just finished the roughing and everything seemed fine. I'm about to start the finishing pass.
Maybe it was a connection and by me plugging and unplugging everythign it worked itself out? even though i didnt unplug the axis i was having problems with.