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    N.f.

    From the parts book: WW2 era. The - 2 designation is the class of the thread I think ?
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    more

    This guy at least does some basic comparing of the various brands . He has done many of these videos covering different tools

    https://www.youtube.com/watch?v=v6QCrV4ZOiU
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    Make your own cutting oil

    Interesting home brew

    https://www.youtube.com/watch?v=wdgGy1lTyQk

    https://www.youtube.com/watch?v=2qigHaJkriA&t=20s

    https://www.youtube.com/watch?v=Ex0JeBz4ULM
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    Bolts

    Not much of a project. New leaf spring bolts for my Jeep , material is 4140 alloy and I use HSS tools. Good surface finish even with the roughing tool at 290 rpm , very slow feed and some tap magic...
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    Hi

    You will soon pick up the tips of the trade :U

    This is a good intro to grinding your tools https://www.youtube.com/watch?v=2OzRtY8SVcM&t=1193s
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    Thanks

    Hi BC

    Yes, that web thinning you described and pictured is what I do as a normal part of the sharpening process.
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    more

    This has just been published ...
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    Split point drill grinding

    What are your favoured methods to grind the tips of the grind split point twist drills ? I've seen where some use a dremel and a small wheel.
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    The chrome is only on the surface , I would do a deep enough cut to get underneath it .
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    Chaser

    I think you need a chaser ? These are different to normal cutting taps. You could make a chaser using a BSW bolt of the correct size

    "Taps and dies are designed for creating new threads. If you...
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    yes

    If it was me doing that job on that lathe I would engage the back gear , use a sharp HSS tool with the appropriate angles , slow down the rpm and use the slowest power feed option and lots of coolant...
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    Thanks

    OK. I found this info useful as a general guide http://www.atlassteels.com.au/documents/Atlas%20Engineering%20Bar%20Handbook%20rev%20Jan%202005-Oct%202011.pdf
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    4140 confusion

    I bought A Short length of 4140 which I think is what they call " pre-hard" the seller says it's hardness is RK 32 or therabouts, the surface finish is very smooth and shiny .

    There are various...
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    Differences

    I have one somewhere but it's larger than 1/2" . Found this is helpful https://www.threadtools.com/uploads/pdf/technical-specs/coventry-dieheads-general.pdf

    The manual is online for download
    ...
  15. Thread: Kerry Lathe

    by morrisman
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    Aspendale Tech 1966

    Tech. school in Victoria ..I spy a Kerry lathe , 1966
  16. W. Thornley & Sons Ltd., Sydenham Ironworks, St. Peters, Sydney, N.S.W

    https://nla.gov.au/nla.obj-465317995/view?partId=nla.obj-465337182#page/n0/mode/1up
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    Bren Carrier manual

    https://trove.nla.gov.au/work/18596094?keyword=%22%20machining%22&l-rights=Free&startPos=20
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    Hmmm

    Ah bugger, I have found a few more academic papers . Here is one:
    https://research-repository.uwa.edu.au/en/publications/analytical-modelling-and-experimental-verification-of-facing-and-

    And, I...
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    Lathe tool book

    Free download

    https://babel.hathitrust.org/cgi/pt?id=mdp.39015002877739&view=1up&seq=12
  20. Thread: Kerry Lathe

    by morrisman
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    Kerry Lathe

    Spotted this of Gumtree, This example seems to have a threaded spindle nose ? I thought these Kerry lathes all have a L00 spindle mount but reading the Lathes UK write up, the threaded nose was used...
  21. Cab

    It has the GMH made cab and army divided rims - looks like 900-18 tyres . GMH and Ford Aust
    had a large press to make those 18" rims during the war.
    18" was a oddball size that no other countries...
  22. Penetrol

    Have used Penetrol on a rusty iron roof with good result. It will eventually break down if left exposed to the sunlight. It's ideal for crevices where it soaks into places you can't paint. If the...
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    yes

    https://nla.gov.au/nla.obj-550647091/view?sectionId=nla.obj-552819510&partId=nla.obj-550672309#page/n35/mode/1up
    ...
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    more

    This guy is very good

    https://www.youtube.com/channel/UCCdehjn-R9mM8CdgqO7WZLA/videos
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    Basic manual

    https://www.liberatedmanuals.com/TM-9-3418-200-14-and-P.pdf

    https://www.liberatedmanuals.com/TM-9-3418-201-14-and-P.pdf

    There is a Shaper USB stick somewhere that was being shared by the forum...
  26. Thread: Head studs

    by morrisman
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    Thanks

    Yes, I've see the reduced diameter between the threaded ends on some block studs.

    Interesting theory re: the loose thread engagement. In my case , I think the cast iron block threads are slightly...
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    LeBlond lathe manual download

    https://www.liberatedmanuals.com/TM-9-3416-221-10.pdf

    One of nearly 5000 manuals available https://www.liberatedmanuals.com/all.mpl

    https://www.liberatedmanuals.com/
  28. Thread: Head studs

    by morrisman
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    Head studs

    I am thinking of making new head studs for my vintage side valve Jeep engine, using 4140 stock . The standard size is 7/16" with UNC threads at the block end and UNF threads at the other end . I...
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    If you can use it for spares your welcome to it...

    If you can use it for spares your welcome to it for what I paid .. $300. You would need a good heavy duty trailer and towing vehicle.
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    yes

    Hi Mark

    I have one but not used it, it is rather in poor shape, been flogged I suspect. . The table is a mess with broken sections of the T slot grooves. I have a Vertical head for it. One gear...
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    Nice

    The thing is, by the time we get hold of one , it has suffered from 40+ years of abuse , lack of maintenance and general wear. :no:
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    Dandenong 1957 truck plant

    https://www.youtube.com/watch?v=-aia0rS-gIA
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    Making a 8" shell in 1917

    https://www.youtube.com/watch?v=0IgHwYkZ91s

    In some WW1 battles, a high percentage of the shells fired were duds, mainly because of faulty fuses. The fuse was a intricate and delicate part and...
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    Bars

    The big enemy of boring bars is flexing. If you are making your own bars don't use something like mild steel unless it's a large bar of solid proportions. Try to use tool geometries that lessen the...
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    Rear Differential Bearing by Timken®. Get optimum vehicle performance with Timken bearings. Timken manufactures ball bearings, cylindrical roller bearings, and tapered roller bearings, and all...
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    two sides

    That's a interesting read . But you could ask yourself the question: Would Dick have become fabulously wealthy if Whitlam had not lowered the import tariff on import electronic goods ? Probably not ....
  37. Thread: Newbie Asks!

    by morrisman
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    Hss

    Hi

    HSS does a great job, but be aware its not all the same. I have collected many used , old pieces of HSS . HSS Comes in many brands , just experiment and see how you go . I have some old...
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    Dick Smith is another patriot entrpreneur who...

    Dick Smith is another patriot entrpreneur who made mllions by importing cheap electronic gadgets from Asia. He sold thousands of CB radios in the late 1970s all made in Asia . What became of AWA can...
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    profile

    It was originally folded or fabricated out of 1.2mm sheet into that shape. GMH , the makers, must have had a fancy set of extrusion dies or something and large hydraulic machines , you can see where...
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    Windscreen frame profile

    Somebody is looking to reproduce this profile, its made from 1.2mm steel or brass stock . It is for a vintage Blitz truck . Any ideas ? Would it be possible to mill this shape out of solid stock ?
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    clearing sale in vic

    https://khre.com.au/online-auctions/?fbclid=IwAR0yQbpa_FIvf4mCvDP6UiHmZt02Mt2nxHiSnripC6fbgB86RUY8YLfXhNY#!/itemDetails/925/163257
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    Manufacturing aircraft in australia

    https://www.awm.gov.au/collection/C188851
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    surviving

    Apparently the Halifax crews had a higher survival rate compared to the Lancaster . The Halifax had easier ways to escape the aircraft , the escape hatches were easier to get at in an emergency. Some...
  44. I have no such known history for my 1941 10"

    I have no such known history for my 1941 10"

    Your 10 might be the one I tried to buy some years back, the chap said he was a Fitter Turner and the 10 came from the munitions factory in Melbourne .
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    load

    Yes definately pre-load the bearings . I've got a Sheraton AR and a Premo both with TRB spindle. I was using a heavy wheel bearing grease but found this was too much of a drag on the motor, effecting...
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    Nice

    That's a great find, it is probably the only example of that shaper in Tasmania !

    Lots of information out there because they were/are very popular in the USA with thousands being made since the...
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    more

    Reviving this old thread: After lots of experimenting , I have gone through different stages , sometimes I gave away the honing as being not so effective . But recently my favourite honing stone is...
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    video

    In many of the utube instructional lathe videos the instructor uses either free machining brass or aluminium as the example job, it all looks very easy :) it would be closer to the real world if...
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    radius

    Noticed he doesn't grind a radius on the tool nose which just about everybody in the lathe world recommends for a decent finish .
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    results

    One observation Ive made with grinding/sharpening HSS blanks or touching up old tools is: the metallurgy in the tools varies , they are not all the same. Seems that different brands have different...
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