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    Welcome. Interesting colour. Sort of a light...

    Welcome.

    Interesting colour. Sort of a light dry powdery rust colour !!!
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    1. Mr GS, I sent you a PM 2. It must be the...

    1. Mr GS, I sent you a PM

    2. It must be the week for broken chucks. Here is a Jacobs No.3 from the USA:
    387263
    with chowdered teeth on both the bottom of the jaws and the (half) nuts
  3. Yes, near me was Premier Fasteners. In March they...

    Yes, near me was Premier Fasteners. In March they auctioned all their heavy machinery, many heading machines and tooling die sets, that probably hadn't had operators for decades. :(

    I visited...
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    Nice slitting blade ! Good idea to use a mirror

    Nice slitting blade !
    Good idea to use a mirror
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    Repairing Jacobs No. 34 chuck.

    Title should actually have a question mark, because I'm not sure it is worth repairing :~


    Grabbed a chuck from the pile of stuff, put it in lathe tailstock, saw it pushing the drill way off...
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    Paul is right, the drill press is only 1/2HP...

    Paul is right, the drill press is only 1/2HP (despite being a large motor casting).
    Not much good on anything but a Hercus :D


    I will look around for a cheap 400W 240V motor.
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    Gidday Wombat! How is your sheetmetal fab? Oxy...

    Gidday Wombat!

    How is your sheetmetal fab? Oxy brazing, or MIG welding?
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    With carbide, I've burnt the edge off, and I've...

    With carbide, I've burnt the edge off, and I've smashed chunks off.

    HSS would be slightly more forgiving on the latter, but a lot worse for the former?
  9. Adult toys. That means woodturning lathes and 3D...

    Adult toys. That means woodturning lathes and 3D printers, right?
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    Valid point. I do have spare DIN...

    Valid point.

    I do have spare DIN mini-contactors, but a 3 pole stop to fit through the front panel will be a challenge.
    Although, if I went the VFD route, not sure if a "soft" emergency stop...
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    "Upgrading" a lathe to 3 phase?

    I have been gifted a Hafco AL336. It has a 2HP 240v motor is working OK. The previous owner wants to swap its motor with a 3 phase motor in a drill press.

    The lathe electronics:
    387038


    will...
  12. ... and he's climbing the ... trayway to ... heaven

    a drop-down channel to the middle of the floor:
    387035 387036 387037


    Bottom edge is a little above head height. I will bolt a bunch of power outlets, and a few air quick connect sockets, in the...
  13. What I ended up using to caltilever tray off an i-beam

    So, to wrap up, I did end up using the flat bar, and several other leftovers. Here is the "design":

    386987386988


    The flat bar is actually 25x6mm and fairly soft steel. Its nowhere near as...
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    Not me, this is John's restoration. Mine was...

    Not me, this is John's restoration.


    Mine was a 1961 Hercus 9C. No videos.
    https://metalworkforums.com/f189/t203763-hercus-lathe-refurb-revesby-week-1-a
    I used "Rust Stop" paint. Black covered...
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    Neevo, I like your bed cover plates!

    Neevo, I like your bed cover plates!
  16. Thread: new guy

    by nigelpearson
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    At the moment, just making a mess :U Have...

    At the moment, just making a mess :U


    Have done a few tiny machining jobs for factory neighbours or random walk-ins, but mainly repairing machines given to me, acquiring tools, trying to store...
  17. Thread: new guy

    by nigelpearson
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    Howdy Mick. Are you still active with metal? ...

    Howdy Mick.

    Are you still active with metal? Welding & Fabrication? Machining?



    I am setting up a large man cave (or smallish factory) at Revesby
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    Repairing the brake on an AL336

    My "new" AL336 had a broken brake. Previous owner stomped hard on it and snapped the pins that hold the shoes in place:

    386761


    I'm sure, for a price, H&F could supply the parts, but I'm cheap...
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    Correct, my deep cuts were TOWARD the chuck. I...

    Correct, my deep cuts were TOWARD the chuck. I try to only do light cuts in the other direction, to be kind to the spindle lock nut+clamp.

    The chuck is a 4" Pratt, but has had a bad life serving...
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    Excellent analogy! Thanks Steve (and all the...

    Excellent analogy!


    Thanks Steve (and all the contributors to my weird little challenge)
  21. Replies
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    Indeed. My favourite way of external threading is...

    Indeed. My favourite way of external threading is to use an internal tool on the outside rear, cutting away from the chuck on a reversible lathe. The only way I trust myself to use automatic feed!
    ...
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    Flat belt, so I have an inbuilt clutch :wink: ...

    Flat belt, so I have an inbuilt clutch :wink:


    I did actually monitor RPM for the deeper cuts. Dropped from 628 to 619. Cadet 1/2HP 3 motor. Is that too much load on the motor? I was more...
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    I was actually machining the correct/conventional...

    I was actually machining the correct/conventional way (towards the chuck).


    But, thanks for the interesting suggestion.

    a) On this lathe (Hercus, screw chuck), not possible.

    b) On the one I...
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    I tried a few different orientations. The...

    I tried a few different orientations. The natural:

    386746

    and turning it 45 to the right (which should clear equally well facing left or right?)


    At 40thou, though, definitely cutting a...
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    Hi Peter. 1. Don't have a 4 jaw for the...

    Hi Peter.

    1. Don't have a 4 jaw for the Hercus, and this 3 jaw isn't great.
    It could be the jaws need regrinding,
    or it could be what I was gripping wasn't parallel enough,
    but either way; I...
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    Lathe chuck forcing work piece out???

    This is a new weirdness I encountered yesterday.

    Was machining 30mm dia. 4140 down to a 16mm rod, in my Hercus 9C. Fairly heavy cuts between 25 and 40 thou. Got a few nice long blue spirals...
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    Oil leaks...

    One oil leak on the floor from the 3 weeks I have had it. Dropping off the motor, seems to be leak around gearbox input shaft:

    386675386676386677386678
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    Ben, I know what you mean about too many – got...

    Ben, I know what you mean about too many – got given another one on Saturday. My current set (of non-bench vices):

    386673386674
    Note the little silver and blue one. Christmas present from my Dad...
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    I like the design (with the height-setting...

    I like the design (with the height-setting threaded bar on one side).


    As a refinement;


    I would use a larger threaded bar, and grind/mill 6 flats on the end instead of a screwdriver slot....
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    and, just for another data point, I was...

    and, just for another data point, I was loaned/gifted an AL336 this week, built 2008? It has had a busy life, but I think its motor is still the original one.


    Its original owner was sick of the...
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    Odd machining vice

    Was given this quick release, or cam-lock, machining vice:

    386646

    (I'm fabricating, er hacking?, the missing jaw attachment plate there)




    The unusual feature is the steps in the jaw...
  32. How to fix broken retractable air hose reel

    Factory neighbour asked me to try to fix their retractable reel - you know the ones that I can never work out how to lock after you have pulled some hose out?


    After taking the fixed swivel hose...
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    Even better is perforated orb or corri'. The...

    Even better is perforated orb or corri'. The holes let a bit of the sound through. Behind a sealed/rigid steel sheet it is mainly the lower frequencies that get to the insulation. You want all...
  34. Yep, 14 pairs:386371 I think they are...

    Yep, 14 pairs:386371



    I think they are floor grid/mesh clamps. My MacGyver solution was to grind a locating slot in the long one, drill 2 holes in the strap, and bolt up:

    386372
  35. RacingTadpole and JohnQ, here's a challenge for...

    RacingTadpole and JohnQ, here's a challenge for you. What are these for:

    386357

    I thought they were clamps for this trayway, but the M8 set screws only just clear the depth of the clamp.
    The...
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    ...while we are talking about stands, this is...

    ...while we are talking about stands, this is what I made for my scrapped 6x4...


    386348386349386350


    I started with 1.8m of channel, set angle grinder cutoff for roughly 10, halved it and...
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    Simplest solution, just try to use a 25 or 30A...

    Simplest solution, just try to use a 25 or 30A 240v circuit, and run on the highest output setting.




    Rewiring solution...

    I can't quite make out the wiring on the primaries. Blow the dust...
  38. We had a Frank who was a team GA, but I don't...

    We had a Frank who was a team GA, but I don't remember his surname.
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    I'm only just getting time to watch these. ...

    I'm only just getting time to watch these.

    Episode 4, the wiring.



    It looks like you used an external latching relay for stop/start.
    If you didn't have the VFD, you would have to do it...
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    The chuck will seem locked up, because the...

    The chuck will seem locked up, because the gearing is very small to very large (like 100:1).

    Try turning the countershaft pulley by hand, which is geared the other way (like 1:100).

    Or maybe...
  41. :; I was 23 years in "Intelligent Networking...

    :;

    I was 23 years in "Intelligent Networking Development." Software dev. team in Sydney. Hierarchy seemed to change every few years, but we were in NDC a decade or two ago. Was merged with TRL...
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    Replacing parts is the best fix, but here are...

    Replacing parts is the best fix, but here are some crazy ideas (hacks?):





    Thick grease in the feed screw & nut.
    Clamp the cross slide in position.
    (depending on what sort of milling...
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    From the Hercus Spare Parts Manual: 386300

    From the Hercus Spare Parts Manual:

    386300
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    It is a two step operation. 1) Engage the gears,...

    It is a two step operation. 1) Engage the gears, 2) Pull out the pin near the chuck:

    386299
  45. The 25x8 should be strong enough, but drilling an...

    The 25x8 should be strong enough, but drilling an 8mm hole in the middle for one clamp just seemed to create a weak spot. Might have been bending due to the clamp, I'll try some proper cast beam...
  46. Strata industrial unit, about a mile from home....

    Strata industrial unit, about a mile from home. 130m2, plus 30m2 illegal mezzanine:

    386291
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    Your beam is also supported in the middle, so it...

    Your beam is also supported in the middle, so it isn't really spanning? That is cheating! :roll:


    Here is mine (before I loaded it up with drawers and a drip tray):
    386287
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    Congrats on the retirement! (and welcome to...

    Congrats on the retirement!

    (and welcome to the forum)
  49. Used to work for Telstra, so have plenty of...

    Used to work for Telstra, so have plenty of slotted UniStrut offcuts :U


    Upside down directly under the beam was my first thought (many months ago). Then I started looking for simple clips that...
  50. Kryn, thanks for your quick thoughts. ...

    Kryn, thanks for your quick thoughts.


    Trayway is Burndy 150, so roughly 150mm wide. I think RSJs are 250x150 ish
    (probably 256 X 146 - 10.9MM FLANGE & 6.4MM WEB).


    Flat Bar is 25x8ish and...
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