Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: steve-l

Page 1 of 60 1 2 3 4

Search: Search took 0.03 seconds.

  1. Replies
    8
    Views
    359

    You are correct and I very much like the...

    You are correct and I very much like the machinist's description of machining AL4032. It needs to be T6 before you machine it first. Keep in mind that AL4032 is super Eutectic, that means there is...
  2. Replies
    8
    Views
    359

    Rick, you have the properties backwards AL4032...

    Rick, you have the properties backwards AL4032 has a smaller expansion coefficient than AL2618. AL4032 is a super eutectic alloy that allows tighter piston to wall clearances than AL2618, but...
  3. Replies
    14
    Views
    535

    Congratulations. Great job. One question though,...

    Congratulations. Great job. One question though, how do you know if the torque demand exceeded the drive and a pulse or more is lost in motion? Are you using positive position feedback?
  4. Thread: OT retirement

    by steve-l
    Replies
    41
    Views
    1,952

    John, your assessment of graduate knowledge level...

    John, your assessment of graduate knowledge level is not correct. University graduates today have no more knowledge than I had after high school, if as much. Maybe in some cases, that may not be so,...
  5. Thread: OT retirement

    by steve-l
    Replies
    41
    Views
    1,952

    You are correct Limy. I should have congratulated...

    You are correct Limy. I should have congratulated Winger first. It was not my intention to rain on his parade and I do wish him luck as well as yourself. My statement however was not political, it is...
  6. As I just stated on another L&S thread, I found...

    As I just stated on another L&S thread, I found another, new to me, use of my L&S PT lathe. Last week I had to broach a 10 mm internal keyway in a 80 mm bore and my arbor press was too short for the...
  7. Replies
    51
    Views
    3,463

    I think you should use a ISO 68 way oil in the...

    I think you should use a ISO 68 way oil in the apron like the manufacturer recommends. I use SHELL TONNA S3 M 68, which is SHELL's equivalent to Vactra 2.

    I see you do not have the two speed tail...
  8. Thread: OT retirement

    by steve-l
    Replies
    41
    Views
    1,952

    Retirement is fictitious. Usually it is a mistake...

    Retirement is fictitious. Usually it is a mistake financially. Governments carry national debts. They can never and will never be paid. These debts are all too real. All governments depend on...
  9. Replies
    16
    Views
    757

    The gears are in the wrong place. Someone had the...

    The gears are in the wrong place. Someone had the machine apart and reassembled it incorrectly. Arithmetic is your friend!
  10. Replies
    41
    Views
    9,951

    I have found this thread entertaining. First, BP...

    I have found this thread entertaining. First, BP mills should never be used in a production environment. They are manual machines usually used for one-off or short run tasks. In that light, power...
  11. As a beginner, you will have learning issues,...

    As a beginner, you will have learning issues, everybody does, nothing against you personally. The last thing you need is a non-runner with missing parts. You do not even know how to evaluate a used...
  12. Thread: Create Tool

    by steve-l
    Replies
    8
    Views
    750

    Emanuel, Do you speak one or more Chinese...

    Emanuel,
    Do you speak one or more Chinese dialects or do you rely on your zhu shang for that?
  13. Replies
    10
    Views
    559

    I don't understand your comment. Mobil vactra...

    I don't understand your comment. Mobil vactra no.2 is a ISO 68 slide way oil, which is exactly what a linear guide machine requires. Now, slide way oils do come in lighter viscosities, like ISO 32,...
  14. It is not used for taper pins. It is used as a...

    It is not used for taper pins. It is used as a finish reamer for cleaning/deburring tool sockets like in the spindle of large lathes and quills of large drilling machines. My largest is a number 4...
  15. Replies
    21
    Views
    2,992

    You guys should know you are responding to a...

    You guys should know you are responding to a thread two years old and one the OP never responded to.
  16. Replies
    43
    Views
    1,512

    Paul, Send the job out to someone that has the...

    Paul,
    Send the job out to someone that has the tools or acquire the tools yourself. Anything else endangers you, the tools you are abusing and the work.
  17. Replies
    8
    Views
    459

    Anybody who buys a $300 band saw for a production...

    Anybody who buys a $300 band saw for a production environment needs his head examined. For that price, buy two , scrap them when they fail, use the back up and buy another $300 special.
  18. Replies
    21
    Views
    1,857

    Garwood, I'm not going to argue with your...

    Garwood,
    I'm not going to argue with your detail. Your comments just enhances my point that for what ever reason, time or money, These older CNC machines do not hold their value like manual machines.
  19. Replies
    21
    Views
    1,857

    Old CNC machines have almost no value over scrap....

    Old CNC machines have almost no value over scrap. The reason is not as if they are worn out or not repairable mechanically. It is because the controls cannot be repaired or economically be replaced....
  20. Replies
    7
    Views
    720

    This thread is stupid. Everything we do as a...

    This thread is stupid. Everything we do as a machinist exposes us to hazardous material. In each case of exposure, common sense applies and normal protective measures should be used. Donie's input is...
  21. I always assumed DRO PRO was made by SINO simply...

    I always assumed DRO PRO was made by SINO simply because they look the same. I also have a mill made in China that had a SINO DRO installed at the factory on my initial order. It has worked...
  22. Replies
    10
    Views
    559

    One more point is that it appears to me that most...

    One more point is that it appears to me that most of us have no idea what viscosity is. So for those that fall into that category, viscosity is the thickness of the oil and is measured by the time it...
  23. Replies
    10
    Views
    559

    This topic is of interest to me. I have the issue...

    This topic is of interest to me. I have the issue that I am surrounded by farmers and virtually all industrial supplies have to be special ordered including all machine oils. I did some research...
  24. Replies
    9
    Views
    507

    Why? It was not OEM. A two speed motor is no...

    Why? It was not OEM. A two speed motor is no replacement for gears nor is a VFD.
  25. Replies
    32
    Views
    1,264

    When you pick it up and do a complete inspection....

    When you pick it up and do a complete inspection. Take lots of photos and get back to us here. Do not expect to find parts from scrap machines........there aren't any. DoAll is your parts source. I...
Results 1 to 25 of 1500
Page 1 of 60 1 2 3 4