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Type: Posts; User: steve-l

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  1. Replies
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    I do not like twist nuts. Proper high pressure...

    I do not like twist nuts. Proper high pressure crimps do work well, but the appearance is shit. I prefer to use copper bus bars with threaded holes hosting properly crimped ring terminals. There are...
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    2,702

    This is a big issue today and I personally...

    This is a big issue today and I personally believe these internal stresses that cause warping are caused by rapid cooling after casting. I further believe that once there, they can never be removed...
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    First, I cannot believe you have durability...

    First, I cannot believe you have durability problems with your cobalt alloy tools in a shaper. Cobalt bits take even the worst slamming better than anything I have used. If you don't like them, make...
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    I use HSS almost exclusively and it is very hard...

    I use HSS almost exclusively and it is very hard to discriminate by brand or even age. It isn't like they have a production history stamped on them. So, in many ways it is a crap shoot. I can state...
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    Bill, That was wonderful bullshit, but you...

    Bill,
    That was wonderful bullshit, but you didn't answer the OP's question. Why? Examples?
  6. I'm going to apologize for a partial capture of...

    I'm going to apologize for a partial capture of your thread up front. First, 3 phase power is SOOOOOO much better in all respects over single phase that there really is no comparison. Secondly, all...
  7. I suspect the problem is not initially the drill....

    I suspect the problem is not initially the drill. It is most likely the driller. The operator must be skilled and smooth. he must use a sharp bit, steady pressure and slow speed. Miss any one of the...
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    Not so Bill. In Germany and most of at least the...

    Not so Bill. In Germany and most of at least the Netherlands, all 3 phases are delivered to the homes. Single leg voltage is a nominal 230 volts to Neutral. Leg to leg is now 400 Volts nominal (Used...
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    The OP's 240 volt 3 phase power sounds like BS to...

    The OP's 240 volt 3 phase power sounds like BS to me. I cannot imagine it even exists anywhere. How is this voltage measured? I assume it is RMS leg to leg. If so, the individual leg to neutral...
  10. Replies
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    This is your first lathe. You don't know shit....

    This is your first lathe. You don't know shit. It's an old machine that you paid scrap price for. No matter what, you cannot loose a penny. Use it, learn with it. Make your mistakes with it. Then...
  11. For those of you who want to restore a DBW 1A...

    For those of you who want to restore a DBW 1A blade welder. The lamp it has is no longer available. In a previous post I identified the bulb required as a E11 base lamp. It is not, it is an E12 base...
  12. Replies
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    There has been a lot of crap welders made in...

    There has been a lot of crap welders made in China. I know, I have probably owned them before and my experience with these crap machines was terrible, but I have a friend that imports from China and...
  13. A big thank you again to John for measuring...

    A big thank you again to John for measuring everything. Making all these parts is a lot of work and time, but I'm retired now, so I have the time and I don't have the kind of disposable money DoALL...
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    4,494

    I'm certainly not a professional welder, but I...

    I'm certainly not a professional welder, but I weld a lot for myself. I have a Chinese 500 amp inverter power supply driving a water cooled portable MIG wire unit with all the remote controls. It is...
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    How do you thread mill on a Bridgeport?

    How do you thread mill on a Bridgeport?
  16. This is done all the time. The limiting factor is...

    This is done all the time. The limiting factor is "operator skill".
  17. Thanks again John, but can you identify the...

    Thanks again John, but can you identify the actual cable that is used? On the welder progress, I developed my own schematic for the DBW 1A but modified it slightly by adding a separate switch for the...
  18. My first issue is with your query. Gas nitriding...

    My first issue is with your query. Gas nitriding creates surface hardening only and you specified Rockwell "C". The "C" test requires a 45 degree diamond cone with a 150kg weight applied. That will...
  19. Thank you John, this is all very helpful. I have...

    Thank you John, this is all very helpful. I have just completed the mechanical restoration and painting of the DBW 1A saw blade welder, but I have been unable to find an electrical schematic for the...
  20. bump bump bump

    bump bump bump
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    Well, you were right. I stand corrected!

    Well, you were right. I stand corrected!
  22. Replies
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    You are incorrect. Cold rolling steel occurs at...

    You are incorrect. Cold rolling steel occurs at temperatures only slightly cooler than that used for hot rolling.
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    I think you have just learned a big, very...

    I think you have just learned a big, very important lesson. As a home machinist, space is a premium. You cannot afford to own a lathe that is not fully equipped and fully featured. None of your...
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    Your machine is different than the 1612. Where...

    Your machine is different than the 1612. Where ever the 3 power leads go from that box is where the main contactor is. It is that contactor that is powered by the 110 volt control transformer. Take...
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    The transformer you have identified is part of...

    The transformer you have identified is part of the welder. It is ALWAYS powered by 220 as I stated in my last reply. Please read my last reply carefully. It has all the electric answers you need. If...
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