[jayds244]

So i have been running a nexus 410BII with mazatrol matrix for idk like 5 years now and just ran into this problem. Im using an eia program with the cutter compensation being controlled by the cam software so the g code is offset by cutter radius. Now to the problem... The part is a "L" shaped part with a standard tolerance of .005 and the radius on the inside corner is coming out too big when profiling. The cutter dia is definitely small enough to cut the rad but no matter what i do the radius comes out big. I believe this has been happening since getting the machine but Im only realizing it now because my customer is picky. To fix the problem I plunge cut the rad with the proper size endmill but for some reason when profiling the rad never comes out right .By "not right" I mean like .02 larger. All other features on the part are perfect accept the rad. When cutting a bore by profiling I do not have this problem. It only happens with a line into a rad, followed by a line. The angle between the two lines is like 120' also

Is this some kind of mazatrol parameter thing?

[jayds244]

So I have the only mazak that does this lol?

[rcs60]

try a in position code to keep the first axis moving to its programed point while not letting the other axis move before it gets there most cnc's have an in position code the mitsubitshi lathe that i program is a g9 the other thing that you could use is a dwell of .1-.3 seconds at the end of the movement
ex.
g01x1.0
g4u.2
g2x1.005y.005r.005
g4u.2

rcs60

[angelw]

So I have the only mazak that does this lol?

It would help a lot if you were to post a listing of the code in the problem area (at least the block leading up to the circular interpolation move and the block following), the size of the radius you want to achieve, and the radius of the tool being used.

Regards,

Bill

[Mat Mexico]

Apart of your program please post the corresponding tool data page