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    13 Days af a Machinist's Christmas

    In the spirit of the season, I have decided to catalog some of the Christmas gifts i have received over 40 years of marriage and machining. Presented for your entertainment, sung to the obvious tune,...
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    Still mystified

    The Ah-ha! board is so old that I think the legends were written in Sanskrit. Not actually, but it was made in 2000, and has no leds, adjustments or other modern conveniences. I really don't know if...
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    I have had a 1981Boss 6 Series II machine since...

    I have had a 1981Boss 6 Series II machine since 1985 that is still running with it's original controls and pretty much everything else original. It is rock solid as machines go. I run it daily....
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    Boss 5 CNC won't run - Mystery

    Well, I know I haven't been here much lately, just haven't had much spare time. But I am in quite a pickle and I am throwing this out to all the die-hard Bridgeport CNC people who are still hanging...
  5. Nobody here seems to be talking about the...

    Nobody here seems to be talking about the compensation part of having an outside salesman or sales "representatives". Our company was doing OK back in the 80's but felt it was time to move out of the...
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    I would add, before loading the part in the...

    I would add, before loading the part in the lathe, if possible, ON A MILL, spot and drill a 60 degree center as exactly on center as possible, as big as you can but smaller than your eventual bore...
  7. Machine Master CNC Control retrofit on a Bridgeport BOSS5

    Does anyone have the software for a MachineMaster retrofit controller system? If you've never heard of it, it was a cheap replacement/retrofit for a failed CNC control unit on a Bridgeport CNC, that...
  8. Thanks, that's where I found my original...

    Thanks, that's where I found my original supplier. I'm looking everywhere I can think of.
  9. Optical comparator for sale, useful or museum piece

    I have a big, heavy J&L "PC-14" Optical Comparator that is taking up too much space in front of an exit door and the fire marshal says I have to move it. I'd rather just sell it as I don't use it...
  10. WTB Surplus Material 7075 aluminum sheet, .090'

    I am seriously looking for an ongoing supply of surplus 7075-T6 sheet material, .090 thick. It doesn't have to be large sizes, pieces as small as 10" x 16" would work well and I could accommodate...
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    Well, as promised, I wanted everyone who offered...

    Well, as promised, I wanted everyone who offered a suggestion to know that the first responder was the closest to what SEEMS to have been the problem. With absolutely no idea how it came about, I...
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    How to make an excuse

    Years ago, I read an article in a machinist mag, I don't recall which one, but the title was "How to Make an Excuse", or that's how I remember it. The subject was clever ways to CYA when you made...
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    My boss at a small machine shop I worked at years...

    My boss at a small machine shop I worked at years ago had a sign over his desk that read' "You want it WHEN?"
    It was right next to one that said "You can have it fast, right, or cheap. Pick two."...
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    Not a gap bed, just a plain ol' engine lathe....

    Not a gap bed, just a plain ol' engine lathe. Thanks anyway.
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    There is a small amount of play in the carriage...

    There is a small amount of play in the carriage crank, but nothing has changed with that in a long time. The half nut is fully disengaged.
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    Thanks for all the suggestions. I'm pretty sure...

    Thanks for all the suggestions. I'm pretty sure there's nothing in the rack. I took a pick and cleaned every tooth in the feed rack back at least a foot. I can wind the carriage all the way back with...
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    Serious lathe question What the heck?

    I have a 1980 era American TurnMaster 13 x 40 engine lathe that we've owned since it was new and we never had this problem before today. I was turning a small part and had to work close to the...
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    Thanks to all for the suggestions. I called...

    Thanks to all for the suggestions. I called Gallery of Machines as they are the closest to me. I talked to their head repair person and we will be discussing my repair needs again soon. Meanwhile,...
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    I truly appreciate the offers to talk me through...

    I truly appreciate the offers to talk me through the repairs, I've done that before. And contrary to what it may sound like, I have a good general idea of what I need to do on all three machines, and...
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    Help, I need a machine mechanic

    I have 3 Bridgeport CNCs, a Boss 5, Boss6 (Series II) and a Boss 9. All three need some form of mechanical repair or other. Belts, pulleys, other adjustments. I can't find a repair person within a 6...
  21. I would definitely hire you today, if I could...

    I would definitely hire you today, if I could afford you. New York is jumping on the $15.00 per hour bandwagon and it looks like a lot of workers are going to be priced out of a job. If you have to...
  22. Sounds like maybe you got fine aluminum dust in...

    Sounds like maybe you got fine aluminum dust in the router and shorted it out. Too bad. But I think the process was as dangerous as it was destructive. The frictional forces of a large cutter could...
  23. I seem to be replying to my own post, but I...

    I seem to be replying to my own post, but I wanted to add, my process is not a one-off. By my calculations, I have made over 600 turn fins for a major customer over the past two years. Some as small...
  24. Knife edge on 7075

    I routinely put knife edges on 7075 material. I use a multi step process. First, I rough the angle with very coarse sanding belt, like 60 grit. (Yes, I use aluminum oxide belts). It may take several...
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    Sorry, I have to disagree

    I am a machinist with over 40 years of machining experience, and I have to disagree with this statement. 6061-t6 is not particularly used for extrusions, although it is an extruded product itself. It...
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