Recent content by Bob Gibson

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    Optimum TU2004v

    Does any one on the forum own one of these min lathes?
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    Interpreting Cutting Speed Tables

    My table is Left vertical column =Material (inc items such as Aluminium, Cast Iron etc) so this cant be the cutter column Across the top the horizontal column headers contain the items I listed in my previous post.So the horizontal column must be cutter material because no body would make a...
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    Interpreting Cutting Speed Tables

    OK guys thanks for the replies. Jasonb solved the puzzle for me. Yes its a German designed machine and the cutting speed table is METRIC. So it all makes sense to me now. One final NEWBE question. Am I correct is assuming HSS, P10, P20, P20, K10, HC P40, HC K15, and HC M15/K10 in the table are...
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    Interpreting Cutting Speed Tables

    Ok thanks i should be ok to make some good looking chips now. I will get the app and also look at more of joe pyszynski videos to fill in the knowledge gaps. My next task is grinding some HSS cutting tools I'm sure joe pyszynski will have a video on that
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    Interpreting Cutting Speed Tables

    Thanks again XD351 I checked out the Cs & 6s Video on Youtube and found it most helpful. Was I correct in assuming the numbers eg 35-50 represent suggested Sfpm range.
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    Interpreting Cutting Speed Tables

    Thanks XD351 i'll check out the youtube link ASAP
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    Interpreting Cutting Speed Tables

    Please forgive me for what I suspect most of you will think is a very basic question. I am a complete novice to machining and have purchased a Optimum TU-2004v. I'm having trouble interpreting the cutting table on page 39. Here is a sample line Material Non alloyed steel...
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