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    Fanuc TCP parameters Fanuc 16iMB

    Hello guys, I am having an issue with these parameters. Machine is table table , A axis swings , C axis rotates around the tool. When switching on TCP function, g43.4 , the toolpath does not seem correct. It looks certainly offset from the part, and I am not sure , the toolpath it's...
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    VMC Multiple X axis / ballscrew problems

    No problem, this website helped me in many occasions
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    VMC Multiple X axis / ballscrew problems

    Hello, In my particular case they were from 6870 to 6875 , not sure why 5 parameters, but this is what I have. Miscellany parameters numbers might be different based on the Fanuc control model.I think
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    VMC Multiple X axis / ballscrew problems

    hello guys, just an update. this might be helpful for someone else with the same problem in the future. So I had the x-axis ballscrew re-balled ( it was sent out ), but the problem was still there although no more mechanical problems, we then found a set of parameters that are not even on the...
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    Jumping X axis Mori seiki MV40b Fanuc 0m

    Hello , I am interested on this please as I am experiencing the same problems
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    VMC Multiple X axis / ballscrew problems

    I will also have Fanuc here next week , hopefully he can suggest me further
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    VMC Multiple X axis / ballscrew problems

    It's DNC electronic , the price is for a refurbished one in exchange of the old one.
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    VMC Multiple X axis / ballscrew problems

    It's a local electronic refurbishing company, specialising in Fanuc parts. Do you think is too expensive or too cheap? Also I am not sure if parameters re-tuning would still need it?
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    VMC Multiple X axis / ballscrew problems

    I think there are parameters to possibly tune the servos, but I am not sure what to change? I am also tented to buy another refurb amplifier , but if the problem is related to servo tuning , I will put another probably at least $1000 down the toilet
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    VMC Multiple X axis / ballscrew problems

    Hello, I will have Fanuc in next week to do other things on other machines , I will ask them , however if anyone else has other ideas , I would like to know. Also I kept trying, I can change backlash parameters but they don't make any changes on any axis which seems strange.
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    VMC Multiple X axis / ballscrew problems

    Hello , I am not sure if we can call it modern as it's 22 years old machine , even if it's still in a good overall codition.
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    VMC Multiple X axis / ballscrew problems

    Hello , could you help me with these , I am not sure about these jumpers you refer to as the cables can go only 1 way?
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    VMC Multiple X axis / ballscrew problems

    The parameters values change , however I don't see any real change in machine behaviour. The values remain whatever I change after power down/power up
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    VMC Multiple X axis / ballscrew problems

    Hello guys! Thanks for the replies , I will pass these opinions/suggestions to my engineer, hopefully I will have other updates tomorrow.
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    VMC Multiple X axis / ballscrew problems

    Hello guys! I was away for while then came back. So , nothing resolved so far. We checked Z axis as , well , no movement. I had the ballscrew assembly refurbished , re-balled, new thrust bearings as well. I believe at this point there is no more mechanical backlash , however , when I try to...
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    VMC Multiple X axis / ballscrew problems

    I haven't checked if the z axis is tight on the ways , but we checked the x axis and there was 0.0004" slop on the ways so he adjusted that. I can check the Z axis but I don't think it would call that much difference. This will be a difficult one to resolve I think
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    VMC Multiple X axis / ballscrew problems

    Yes on Fanuc control there is generally two separate parameters for feed and rapid backlash. Screw turns very smoothly by hand.
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    VMC Multiple X axis / ballscrew problems

    Hello, thanks for the fast replies. After shimming , the backlash on the screw is about 0.0001"/0.00015" (3/4 microns). I can have that amount of backlash jump around 0.003" now on the table , regardless I put 0 or 135 on backlash comp parameter.
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    VMC Multiple X axis / ballscrew problems

    Hello , yes everything seemed back toghether right. Also, the visual screw condition is very good and shiny, I can not see any pitting at all , also the screw turns by hand really smoothly. I am trying to have this screw refurb maybe, or do you think I need a new screw> The cutter comp on the...
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    VMC Multiple X axis / ballscrew problems

    hello guys! I tried to look through this forum, I couldn't find a similar thread about this. So I bought another 2nd hand OKK VMC, Boxway , 16im control. On the parameter's book, there is a section mentioning Softscale, I am not sure what that is and if is affecting the x-axis. The machine...
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