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Type: Posts; User: pauluk

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  1. Thread: Ajax CNC DM45

    by pauluk
    Replies
    5
    Views
    1,569

    Re: Ajax CNC DM45

    Hi
    Thank's you set us on the right track. The CMOS battery was flat, jumping the power on pins started the PSU but it still did not boot up, but shorting the reset pins did get us to the set up...
  2. Thread: Ajax CNC DM45

    by pauluk
    Replies
    5
    Views
    1,569

    Ajax CNC DM45

    Hi
    I have an Ajax CNC (from the USA not UK) DM45 mill which dates back to 2006. All has been well for many years however I recently moved it to a new location. Since it was moved I have been unable...
  3. Thread: Ajax CNC

    by pauluk
    Replies
    1
    Views
    1,067

    Ajax CNC

    Hi
    does anyone know if Ajax CNC in the USA are still going?

    Cheers
  4. Replies
    11
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    2,395

    Hi Are you going to fit a superheater to the...

    Hi
    Are you going to fit a superheater to the boiler??
  5. Replies
    11
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    2,395

    Hi David It looks like in interesting project...

    Hi David
    It looks like in interesting project you have on the go. steam engines use either a mechanical lubricator (oil pump) which you can buy off the shelf, Take a look on page 47 of...
  6. Replies
    7
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    1,130

    Hi To me there would seem to be a mistake on...

    Hi
    To me there would seem to be a mistake on the drawing. If you look at the shaft at the other end of the motor it is dimensioned as 0.8750 to 0.8745 or in other world a 0.0005 span, which is what...
  7. Thread: what material??

    by pauluk
    Replies
    0
    Views
    1,115

    what material??

    Hi Guys
    i have to make some leaf spring suspension shackle pins for an iveco truck. the pins need to be case hardened any sugestions for the best material to make them from.

    Cheers

    Paul
  8. Replies
    13
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    867

    Hi make sure you use a sharp tool ones for...

    Hi
    make sure you use a sharp tool ones for aluminium should be fine and don't take very light cuts. it catches fire when the swarf is very fine or worse still almost a dust and the tool is rubbing...
  9. Thread: Thread Mills

    by pauluk
    Replies
    5
    Views
    676

    Thread Mills

    Hi All,
    does anyone know of a supplier of off the shelf thread mills, 40 tpi, with a 55 degree whitworth form, perferably in the uk.

    Thanks in advance

    Paul
  10. Thread: Does it work??

    by pauluk
    Replies
    3
    Views
    1,032

    Hi, My gut feeling is that it won't work due to...

    Hi,
    My gut feeling is that it won't work due to the amount that the steam contracts when it condenses. Saturated steam at 100 psi has a volume 237 times greater than the water it came from. I can't...
  11. ok ignore that last post i just had a better look...

    ok ignore that last post i just had a better look at the pictures,
  12. This is going to sound real silly, but are you...

    This is going to sound real silly, but are you sure that it has'nt got a left handed thread. I had a similar problem on a ford suspension bolt, it was easy when i turned it the other way.
  13. Replies
    31
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    5,325

    Hi Guys Thanks for the info so far. Just to...

    Hi Guys
    Thanks for the info so far. Just to clarify things I have a splined shaft which i need to copy for a customer, I can't get hold of the female part to check the fit of the part i make, so my...
  14. Thread: Ajax DM45

    by pauluk
    Replies
    2
    Views
    1,554

    Hi Larry, I have had a DM45 since December last...

    Hi Larry,
    I have had a DM45 since December last year. I spent about 6 months looking for a machine of this sort of size and the DM 45 was the only one I could find. Basically it is a Chinese built...
  15. Replies
    31
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    5,325

    Involute splines, how do you draw them

    Hi All
    I have got a one off job that requires an involute spline cut on one end. I have a sample that i need to copy. my plan is to draw out the profile of the tooth, so i can m/c a cutter to...
  16. Replies
    60
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    6,638

    Hi All Just a couple of points, don't be...

    Hi All
    Just a couple of points, don't be tempted pump it up with air, if you do and a weld fails, it will be like a bomb gong off. If you use water it is safe, because as soon as you get leakage...
  17. Replies
    4
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    1,472

    For me a 12’ long bar feeder would not be an...

    For me a 12’ long bar feeder would not be an option, by the time you add on the length of the machine you would be looking at say 19’ minimum in length, that’s a lot of space. Give me a 1 meter,...
  18. Replies
    14
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    3,676

    Hi All, Haven’t had much time to look at this,...

    Hi All,
    Haven’t had much time to look at this, but had a quick look tonight. The Z axis numbers are identical for each pass, so that’s ok. Back plotting in NC plot seems to show the dimples. A quick...
  19. Replies
    14
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    3,676

    Hi All The dimples are about 0.030” in dia and...

    Hi All
    The dimples are about 0.030” in dia and are not inclusions in the weld they were created by the cutter, yep it was TIG welded, not alu brazed. I think the problem lies in the digitizing, I...
  20. Replies
    14
    Views
    3,676

    Sorry for the confusion. The program to machine...

    Sorry for the confusion. The program to machine the shown area was digitised from another part of the same crankcase. The work zeros were then shifted and the welded area machined. Yes the material...
  21. Replies
    14
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    3,676

    anyone know what i am doing wrong

    Hi All
    I had my first go at digitising the other day, and whilst the results were fine for the job in hand (machining off weld from a cracked crankcase) the machined are had lots of random little...
  22. Replies
    4
    Views
    1,534

    Apart from spreading abrasive dust all over the...

    Apart from spreading abrasive dust all over the lathe, the biggest problem I can see is ensuring the wheel runs true on the grinder. Most wheels are shaped with an optidress or similar mounted on the...
  23. Replies
    32
    Views
    2,505

    Personally I use Autosketch, and for preference...

    Personally I use Autosketch, and for preference V2.0 (which is quite old now). It does not have all the whistles and bells of its big brother (Auto CAD). The reason I stick with it is because it is...
  24. Replies
    13
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    2,552

    This is going to sound real silly in this high...

    This is going to sound real silly in this high tech CNC world, but put a small bit of cloth over the hole before you countersink it, no I’m not away with the fairies it dose help :banana: . Run the...
  25. Replies
    1
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    1,091

    3 phase transformer needed

    Hi All,
    does anyone know of a UK supplier who produces a 440 volt 3 phase to 220 volt 3 phase transformer, current draw is up to 15A/phase, off the shelf? It is needed to run a US built machine here...
  26. Replies
    15
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    4,239

    Slightly off thread I know but I was always...

    Slightly off thread I know but I was always taught to bore a hole before reaming to insure that it was straight and to a uniform size. This was because drilled holes are seldom 100% straight and to...
  27. Replies
    16
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    2,742

    Hi, Any one know of any wax suppliers in the UK,...

    Hi,
    Any one know of any wax suppliers in the UK, I’m having trouble finding one

    Cheers
    :confused:
  28. Replies
    9
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    1,281

    Hi All I worked for the UK MOD doing R&D during...

    Hi All
    I worked for the UK MOD doing R&D during the first Gulf War. There was so much work to be done and everything was needed yesterday, that initially people were working 16-18 hour days 7 days a...
  29. Replies
    28
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    4,215

    Hi All Here are the power constants (Kp) for...

    Hi All
    Here are the power constants (Kp) for different materials, which you probably have anyway, but there is probably a direct comparison since the cutting forces are directly related to the power...
  30. Replies
    28
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    4,215

    Ah ok, I have formulas in a book on calculating...

    Ah ok,
    I have formulas in a book on calculating the power required for given materials, cutters etc, but I’m not sure they would be much help. I can post them if they are any use to you. You can’t...
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