Program Offsets changing by themselves
Posted: Sun 16 Oct , 2022 18:52 pm
HI,
Bit of an odd one and I can work around it.
I use this machine quite a lot and have made some fairly substantial items in the last few weeks.
Today I tried to machine a billet approx 100mm square. I had a 16mm carbide end mill that I wanted to try (normally use 6, 8's and 10's). This meant that I would be very close to the limits of Y travel. I ran the program and noticed that it took a bigger cut than I expected in the y direction so I stopped the machine and checked my Y offset and it was wrong by about 3 or 4 mm. So I reset the offset, double checked it by moving the tool over the datum and checking it was all reading 000 on the program offset display. All fine, ran it again and the same thing happened. Changed the tool to 10mm, regenerated my code, reset offsets and all is fine. Obviously the 10mm doesn't push the axis as far over for the first cut.
So it seems as if for some reason if I get too close to the Y axis limit something weird happens to the offsets. If It is completely out of limit I get the normal warning that I have exceeded limits. Has anyone else experienced this? When the Y axis gets close to the limits in the + direction it makes a pretty loud noise and hits the limit hard, when it gets close to the limit in the - direction it seems to slow down gently and quietly and hit the limit softly as I would expect.
It's a real shame that the Y axis is not 50mm more travel.
Also, I have seen 2 different numbers for Y travel, 150mm and 160mm. On my machine setup on VR milling mine is set to -150, can I change this to -160 and get an extra 10mm for free?
Cheers
Matt
Bit of an odd one and I can work around it.
I use this machine quite a lot and have made some fairly substantial items in the last few weeks.
Today I tried to machine a billet approx 100mm square. I had a 16mm carbide end mill that I wanted to try (normally use 6, 8's and 10's). This meant that I would be very close to the limits of Y travel. I ran the program and noticed that it took a bigger cut than I expected in the y direction so I stopped the machine and checked my Y offset and it was wrong by about 3 or 4 mm. So I reset the offset, double checked it by moving the tool over the datum and checking it was all reading 000 on the program offset display. All fine, ran it again and the same thing happened. Changed the tool to 10mm, regenerated my code, reset offsets and all is fine. Obviously the 10mm doesn't push the axis as far over for the first cut.
So it seems as if for some reason if I get too close to the Y axis limit something weird happens to the offsets. If It is completely out of limit I get the normal warning that I have exceeded limits. Has anyone else experienced this? When the Y axis gets close to the limits in the + direction it makes a pretty loud noise and hits the limit hard, when it gets close to the limit in the - direction it seems to slow down gently and quietly and hit the limit softly as I would expect.
It's a real shame that the Y axis is not 50mm more travel.
Also, I have seen 2 different numbers for Y travel, 150mm and 160mm. On my machine setup on VR milling mine is set to -150, can I change this to -160 and get an extra 10mm for free?
Cheers
Matt