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  1. The thread dies are tapered for feed in as per...

    The thread dies are tapered for feed in as per any other die, but if you cut past an inch or so it will produce a parallel thread.

    Also check out the internal thread on a tube or T connector (galv...
  2. Yes. Put a pressure gauge on your mains water...

    Yes.

    Put a pressure gauge on your mains water pipe supply and read it off.

    Up the farm we get 160 psi in some paddocks and run pressure reducers to prevent float valve blow out.

    Water...
  3. You do realize that main water pressure runs in...

    You do realize that main water pressure runs in the region of 140 psi for most households, and can go as high as 160 psi if you're at the bottom of a hill coming off of a main feeder pipe.

    So it...
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    +1

    +1
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    TCMT are good little inserts, and that finish is...

    TCMT are good little inserts, and that finish is about average. Keep the speed up for best results.

    With 1080 or similar good machining steel the finish will be mirror quality, provided you take...
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    It's run of the mill TCMT. The insert in the...

    It's run of the mill TCMT. The insert in the photo is positive rake and has a chip breaker.

    Negative rake TCMT generally don't have a chip breaker and the insert mount is angled down.

    You can...
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    +1

    +1
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    CBC Bearings are Australia wide, have just about...

    CBC Bearings are Australia wide, have just about everything, and do small purchases/value, no problem.

    http://www.conbear.com/files/locations.php?sec=locations&lang=en

    I bought some "O" rings...
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    Look around for a "Delphin" Universal lathe. ...

    Look around for a "Delphin" Universal lathe.

    These can be got cheap (from $250 - 500 on Gumtree) and are a good little portable lathe that's passed by because it's made in Russia.
    ...
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    Good question. I doubt there's any standard on...

    Good question. I doubt there's any standard on this - probably just the manufacturers constituents that determine it.

    I've used water proof grease that's been green, grey, and white.

    Same with...
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    Hi Phil, The Waldown also has angular...

    Hi Phil,

    The Waldown also has angular bearings, and as I adjust them with it running, there probably is a small amount of preload. I've never considered it significant, but you are correct.
    ...
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    Ok. If that's how they do it. I haven't been...

    Ok. If that's how they do it. I haven't been through every post.

    The problem with pre-load is that it creates drag and heat. I would expect any preload to be very light - you need to know what...
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    Ball races don't normally use pre-load, from my...

    Ball races don't normally use pre-load, from my experience.

    Regarding the pulley, the method you are using may work better if you don't cut right to the centre line - ie. leave a flat section and...
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    Close, but no cigar. That crown needs some...

    Close, but no cigar.

    That crown needs some more off of it.

    What makes you think you need to pre-load the bearings?

    On the Waldown you simply adjust it to eliminate the end play (these are...
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    Hi Simon. I never subscribed to the one degree...

    Hi Simon.

    I never subscribed to the one degree theory. I don't know where that came from.

    Certainly the curvature on my C0 Waldown is greater per width, than my old Schaublin.

    Modern thin...
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    I had to sleeve and crown the largest pulley on...

    I had to sleeve and crown the largest pulley on the intermediate shaft for my old Schaublin 102.

    It was in steel, and I did it by eye, free hand.

    I just crowned it until it looked right (same...
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    On my C0 Waldown, only the motor pulleys are...

    On my C0 Waldown, only the motor pulleys are crowned. It is a two diameter stepped pulley.

    The spindle pulleys are flat and have a flange each side.

    Works well. The crowned motor pulley...
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    I don't have any motor vibration issues at all...

    I don't have any motor vibration issues at all with my C0 Waldown. It's many years old, but absolutely silky smooth.

    The motor does scream very loudly, but the bearings are all good and lubed -...
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    I wondered if you were trying to run diamond...

    I wondered if you were trying to run diamond burrs in it - that's the only reason for such a speed.

    I get my bearings cheap because I am cheap. He he. No not really. These are a standard high...
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    Hi Simon. Why are you looking to drive the TPG...

    Hi Simon. Why are you looking to drive the TPG spindle to 38,500 RPM?

    I have a C0 Waldown TPG, and as the safe surface speed of a bonded grind stone is approximately 32 metres/second, that...
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    Try Acetone on a rag. Shifts most oil based...

    Try Acetone on a rag.

    Shifts most oil based residue.

    Have good ventilation or wear respirator with correct cartridge, and wear Nitrite disposable gloves (Blackwoods have them).

    Don't get it...
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    Yes, you're right Stuart. Cold weather has...

    Yes, you're right Stuart. Cold weather has frozen my brain.

    They're too small and facing the wrong way - whatever you want to call them.

    Rob
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    I know for sure that the toolpost on the...

    I know for sure that the toolpost on the Paramount lathe does NOT mount on the T slots (edited/corrected) - it has separate bolt holes. This seems to be the case on some other Chinese lathes this...
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    It looks to be a grinding wheel for carbide...

    It looks to be a grinding wheel for carbide tools.

    Norton make this style of stone with an open/coarse composition.

    I have the exact same stone configuration, plus a regular fine green stone on...
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    Yes, for tool grinding you don't need a lot of...

    Yes, for tool grinding you don't need a lot of power.

    Be aware that second hand bench grinders can look OK, but it's a lottery as to how they've been treated and what condition they are inside. ...
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    Sounds like there is something seriously wrong in...

    Sounds like there is something seriously wrong in the quick change gearbox.

    Two gear ratios meshing at once would lock it up.

    I suggest you look in there for an answer.
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    Sticky: Yes, I've dealt with Boltons and found them to be...

    Yes, I've dealt with Boltons and found them to be very good, and I'm not in the USA.
  28. Use a nylon collar lock nut.

    Use a nylon collar lock nut.
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    The original idea came from Michael at Paramount...

    The original idea came from Michael at Paramount Browns, who used a single very large diameter vertical pipe with ends welded in.

    That is inherently dangerous if your welding is not great, and...
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    Gawd, I can't believe the amount of discussion on...

    Gawd, I can't believe the amount of discussion on what is a very basic concept and application.

    I came up with this idea and put up a YouTube video on it quite a while back, and I suggest you at...
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    Rust usually isn't a big problem with galvanised...

    Rust usually isn't a big problem with galvanised steel pipes in this situation, due to the coating and also the amount of compressor oil/vapour present.

    My compressor is a 1970's model Binks...
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    If headroom is a problem, just run the pipes...

    If headroom is a problem, just run the pipes diagonally across the wall - works the same way.
  33. Why not just fit a spring loaded detent pin/ball...

    Why not just fit a spring loaded detent pin/ball under the handle base, and drill a register hole (s) where needed.

    This is the same method as used for QCGB selection dials/levers.

    Be a lot...
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    Exactly what I expected. I've seen this done...

    Exactly what I expected. I've seen this done before and it usually bends the gear shaft and a few rack teeth.

    Sometimes it even bends/bows the rack, depending on where the crash occured.

    Check...
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    Yes, so do I, but the leadscrew is a very...

    Yes, so do I, but the leadscrew is a very sensitive area, and any amount of grit can cause serious grief throughout the system.

    With the covers in place I only need lube the leadscrew every couple...
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    I've never seen any mention of a "safety" aspect...

    I've never seen any mention of a "safety" aspect - leadscrew turns so slowly it's hard to imagine an issue. Injury in slow motion ?

    I do a lot of grinding on my lathe and I hate to think what...
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    I thought there was a high probability. ...

    I thought there was a high probability. Leadscrew covers are great, BUT, that's their one major down side.

    If it makes you feel any better, I've driven into the leadscrew covers at least 10...
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    Yes, there's many ways to restrict carriage...

    Yes, there's many ways to restrict carriage travel.

    The one I have to watch out for continually, and it applies to many Chinese lathes, is leadscrew cover crash - ie they fully compress into their...
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    When lathes crash, they bind up all the feed...

    When lathes crash, they bind up all the feed mechanism. That's why you should always reverse the spindle, rather than try to break it free.

    There's a huge amount of wind up in the feed system...
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    Bad Karma. When this happens you should stop...

    Bad Karma.

    When this happens you should stop the lathe, leave everything engaged and reverse the chuck rotation to drive it away from the head (either manually turn the chuck, or use reverse...
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    I doubt it Grahame, as the band would jump off...

    I doubt it Grahame, as the band would jump off the pulley first.

    Also the side ball races (guide rollers ) are what keeps the blade centred on the rear pressure bearing/race.

    IF the blade is...
  42. Thread: Large file

    by nearnexus
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    Ask your local saw works where they get theirs to...

    Ask your local saw works where they get theirs to sharpen circulars etc.

    They use lots of files and should be able to point you to a decent supplier.
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    If the controller board is cactus, you can...

    If the controller board is cactus, you can replace it with a generic KBIC-240 unit.

    http://www.kbelectronics.com/DCSelectionGuide.pdf
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    I suppose after pricing a new one, anyone would...

    I suppose after pricing a new one, anyone would get the shakes.

    Toyota, Oh what a feeling - about sums it up :)

    I think a trip to the wreckers is in order. They have to be a lot cheaper than...
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    Yes, from memory they moved to Lonsdale as...

    Yes, from memory they moved to Lonsdale as Futura, changed to Gasweld, and then changed to Total Tools.

    Just another big seller now.

    I have been in their Lonsdale shop a few times, but it's a...
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    I wouldn't expect to see any grease fly out. ...

    I wouldn't expect to see any grease fly out.

    But yes, a light oil spray is always on the cards after a lube job.
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    Yes, Futura Machinery at Wayville was a great...

    Yes, Futura Machinery at Wayville was a great shop.

    I bought my first industrial bench grinder there - it went for over 30 years before puffing out the magic white smoke.

    Once Redwood goes,...
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    Actually, although he is a bit of a solemn sam, I...

    Actually, although he is a bit of a solemn sam, I will miss that shop when it closes.

    He is a no bull kind of a guy, and he had a great range of quality ozzie made button air line connectors -...
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    Sure going miss him cracking all those jokes.

    Sure going miss him cracking all those jokes.
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    Grease is great at trapping swarf/grit etc. ...

    Grease is great at trapping swarf/grit etc.

    Oil won't do that, and it allows you to easily whip off the back and blow out the innards with compressed air when the chuck feels notchy.

    If you...
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