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  1. 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...
  2. 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...
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    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...
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    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
  5. 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...
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    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...
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    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...
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    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...
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    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...
  10. 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...
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    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...
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    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...
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    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...
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    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...
  15. 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
  17. 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...
  18. 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...
  19. 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...
  20. 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...
  21. 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...
  22. According to the Harrison manual I have 1 mm...

    According to the Harrison manual I have 1 mm pitch uses 50, 40-60 (pair), 127 as the gear train with the gearbox set to 30 TPI.

    For 1.5 mm pitch the given set up is 50, 40-60, 127 with the gearbox...
  23. I have a PDF copy of the screw cutting data for...

    I have a PDF copy of the screw cutting data for the L5 and L5A lathes out of a manual publication number WH/1MR/10/65/JB. Not sure of the year but as the product list on the back includes Boxford...
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    If the taper turning attachment has sat for many...

    If the taper turning attachment has sat for many years without being used it needs stripping, cleaning, re-lubrication and careful re-assembly with proper attention to setting the gibs correctly. ...
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    I've done the weld-up and re-cut threads thing...

    I've done the weld-up and re-cut threads thing way back on a similar, albeit not lathe, spindle repair. Managed to keep things straight but result was "OK I suppose" at a charitable best with a...
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