been cutting these all day ( testing x accuracy on lathe SOLVED)
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rob murphy
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been cutting these all day ( testing x accuracy on lathe SOLVED)
anyway, the larger diameters are too big , the smaller too small , and the center 14 mm ring is dead nuts..Ive adjusted the settings 1000 times, any ideas.
Last edited by rob murphy on Sat Feb 05, 2022 5:23 pm, edited 1 time in total.
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tblough
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Re: been cutting these all day ( testing x accuracy on lathe )
Cheers,
Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
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rob murphy
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Re: been cutting these all day ( testing x accuracy on lathe )
did that a few times, I think my backlash compensation is the issue.. just redid it , coming out .5mm too large on all 5 diameters.
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Chaz
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Re: been cutting these all day ( testing x accuracy on lathe )
Sounds like a mix up of radius vs diameter, I had that before.
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Chaz
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Re: been cutting these all day ( testing x accuracy on lathe )
Ah, that means you havent got an offset correct somewhere, IE reset up the tool.rob murphy wrote: ↑Sat Feb 05, 2022 2:18 pm did that a few times, I think my backlash compensation is the issue.. just redid it , coming out .5mm too large on all 5 diameters.
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rob murphy
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Re: been cutting these all day ( testing x accuracy on lathe )
correct.. I was doing a skin pass , then zeroing the tool. Then i realized , if i went back for a spring pass more material came off,.. Zeroing at that X now gives me sub .1mm accuracy on all 5 steps of the part.. More than accurate enough for me.Chaz wrote: ↑Sat Feb 05, 2022 2:22 pmAh, that means you havent got an offset correct somewhere, IE reset up the tool.rob murphy wrote: ↑Sat Feb 05, 2022 2:18 pm did that a few times, I think my backlash compensation is the issue.. just redid it , coming out .5mm too large on all 5 diameters.
