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General Mach Discussion / Constant Velocity doesnt' work anymore?
« on: December 02, 2010, 03:39:43 PM »
Hi all,
My constant velocity seems to have broken. Let me explain. I'll admit that when I first set up, I didn't understand it. Then after reading alot on this forum and and the pdf Mach put out I thought I understood, but didn't. Then after more reading and fiddling, I got it. It worked fine and great! It really sped up my projects! Now, it seems to not be working properly. I am running a 4x8 router set up in English measurements. When I first started, it was obvious that I was in exact stop the machine was very jerky. Then I got CV figured out (I think) and it smoothed out dramatically and all was right with the world. Now, it doesn't seem to make any difference in performance if CV is on or off, but when I turn on the CV distance (which I have set to .01) the jerkiness returns and it is acting as though CV is off no matter whether it is on or off. If I set CV distance to 1 it is somewhat better, but still pauses at some code lines. Can anyone tell me what I may have wrong or what may have caused this? I bid a project of about 500 circles cut out of wood and it is leaving a slight flat spot on two opposite sides when it runs smoothly (that is whether or not CV is on, but when CV distance is unchecked), but pauses at 4 points around the circle and jerks on the ramp in when I turn CV distance on, leaving an uneven cut finish. The circles are 4" in diameter and my cut speed is 180 and my CV Feedrate is set at 200. Any help would be appreciated.
Thank You,
Nostradamus
My constant velocity seems to have broken. Let me explain. I'll admit that when I first set up, I didn't understand it. Then after reading alot on this forum and and the pdf Mach put out I thought I understood, but didn't. Then after more reading and fiddling, I got it. It worked fine and great! It really sped up my projects! Now, it seems to not be working properly. I am running a 4x8 router set up in English measurements. When I first started, it was obvious that I was in exact stop the machine was very jerky. Then I got CV figured out (I think) and it smoothed out dramatically and all was right with the world. Now, it doesn't seem to make any difference in performance if CV is on or off, but when I turn on the CV distance (which I have set to .01) the jerkiness returns and it is acting as though CV is off no matter whether it is on or off. If I set CV distance to 1 it is somewhat better, but still pauses at some code lines. Can anyone tell me what I may have wrong or what may have caused this? I bid a project of about 500 circles cut out of wood and it is leaving a slight flat spot on two opposite sides when it runs smoothly (that is whether or not CV is on, but when CV distance is unchecked), but pauses at 4 points around the circle and jerks on the ramp in when I turn CV distance on, leaving an uneven cut finish. The circles are 4" in diameter and my cut speed is 180 and my CV Feedrate is set at 200. Any help would be appreciated.
Thank You,
Nostradamus