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  1. Thread: thread chart

    by Clive603
    Replies
    5
    Views
    462

    Andy Glad you are sorted now. Whole thing...

    Andy

    Glad you are sorted now. Whole thing would be a darn sight clearer if they'd put a bit more information on the untabulated lever positions like C (mm pitch), W (tpi) and Y (feeds). If I had...
  2. Replies
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    706

    I think Thunderjet is optimistic. On a skinny...

    I think Thunderjet is optimistic. On a skinny piece like that machine a bit, stick out a bit further and machine more pretty much guarantees that it will climb over the tool and go prestzel before...
  3. Thread: thread chart

    by Clive603
    Replies
    5
    Views
    462

    We really need pictures but, assuming it is what...

    We really need pictures but, assuming it is what it appears to be, knock off of the Colchester Triumph 2000 speed and gearbox controls the system is pretty much as follows. Sorry for any errors...
  4. Pyrex Apologies for confusion. My fault I...

    Pyrex

    Apologies for confusion. My fault I should have dug out a manual rather than relying on memory as to how the thrusts were handled. Was thinking of wrong breed of machine.

    Don't have a...
  5. As I recall matters its a labyrinth seal on the...

    As I recall matters its a labyrinth seal on the spindle. Basically grooves and close fit pull the oil back. Effective when new or not too old. Usual reason for leaks is build up of crud in the...
  6. A closely related gotcha is the pent-up demand...

    A closely related gotcha is the pent-up demand effect which can seriously distort everyones, including a big, experienced distributor, perception of what the real, sustainable market is.

    Suppose...
  7. Replies
    21
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    1,633

    If 40 + year old memory is correct the somewhat...

    If 40 + year old memory is correct the somewhat similar coil winder we had in the electronics lab had a taper shaft and with a variety of carriers to suit different sizes of ferrite and other...
  8. Replies
    6
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    10,764

    I have a PDF version. PM me your E-Mail address...

    I have a PDF version. PM me your E-Mail address if you'd like a copy. Away from home at the moment tho' so won't be before Sunday or Monday at earliest.

    Clive
  9. My experience with high loads on casters suggests...

    My experience with high loads on casters suggests those wheels are on the narrow side.

    The four on my shop made heavy duty dolly are around 2 1/2" diameter and perhaps 3" wide. (Unfortunately I'm...
  10. Replies
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    918

    Far as I can see all the decent modern DRO...

    Far as I can see all the decent modern DRO systems have multiple zero setting memories which will probably do what you want. My old Sino system, a lower end workshop grade device but perfectly...
  11. Replies
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    1,088

    These days its arguable you don't actually have a...

    These days its arguable you don't actually have a proper business if you are running things in "on condition" manner rather than specified life.

    Clive



    Details are going to differ for every...
  12. Replies
    15
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    1,088

    Yup and, like all such items in manufacturing...

    Yup and, like all such items in manufacturing use, should have a specified life and be changed out when they run out of hours. Obviously life depends on application so it may well make sense to...
  13. Replies
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    2,092

    Yup. Operated on by unqualified surgeon. 5/8...

    Yup. Operated on by unqualified surgeon.

    5/8 - 11 thread suggests it started out as an NT 40 series. Which is sensible for a head that size. Turned down depth at the end looks about right for...
  14. Given the relatively lightweight appearance I...

    Given the relatively lightweight appearance I guess its not something that has to be super strong. Have you considered adhesive bonding with suitable sheet strengthening glued'n screwed on...
  15. Replies
    4
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    400

    Further to what Ted says if its a true native...

    Further to what Ted says if its a true native metric machine, whether by conversion or original delivery, the feed screws on cross and top slides will also be metric. If they and the tailstock feed...
  16. Replies
    24
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    1,806

    Big advantage of magnetic scales is that they are...

    Big advantage of magnetic scales is that they are slim and slender. Especially if bought in "tape" form. Read heads are small too although, objectively rather larger than they need be. This lets...
  17. Replies
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    8,310

    Assuming it wasn't made by pure finance theory...

    Assuming it wasn't made by pure finance theory bean counters with no understanding of hardware realities outsource to China decision could have been made because:-

    1) The firm has run into the...
  18. Replies
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    1,806

    Another vote for Allendale / M-DRO. Bought a...

    Another vote for Allendale / M-DRO.

    Bought a Sino SD2MS 3 axis set from them maybe 12 to 15 years ago for the Bridgeport I'd just picked up. Still going strong. Came with a rewritten, English...
  19. Mix of Linley style Jig Borer and Mill. Looks to...

    Mix of Linley style Jig Borer and Mill. Looks to be basically bigger brother to Myford VMB. Short travel quill in housing that can be slid up and down the main column then locked in place.

    Going...
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    Bazukka That is a standard manual Bridgeport. ...

    Bazukka

    That is a standard manual Bridgeport. No power feeds to the table, you have to turn the handles.

    Clicvw
  21. Stepping up will almost certainly kill the...

    Stepping up will almost certainly kill the outside edge of the drill. Especially in a heavy duty cordless drill. Fundamentally its a question of stability. when stepping up only the very end of the...
  22. Useful pictures. Especially no 2. Look to be...

    Useful pictures. Especially no 2.

    Look to be gear teeth on the bottom of the rod and a spindle below it. Hand wheel spindle above. So assume a gear on the hand wheel spindle big enough to reach...
  23. If it simply clamped the apron to the rod the...

    If it simply clamped the apron to the rod the effect would be functionally identical to the trip stops clamped onto the rod. Just under manual control. Given that such trips, especially simple dog...
  24. The small hand wheel at the bottom of the apron...

    The small hand wheel at the bottom of the apron is most likely a quick disengage for both power feed and screw cutting. The trip stops shown in the catalogue pictures move the rod to left or right...
  25. Best practice when wiring a machine is to keep...

    Best practice when wiring a machine is to keep the phase wires exactly as per the diagram and sort the connections on the motors and main plug or connection block if its hard wired in. May be a bit...
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