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    Myford lathe

    It should have read:- In the past I needed to replace a spur gear with a broken tooth on my lathe, my old but very sevicable slant bed Wilson. The solution was to find a gear of the correct form turn down the O/D of the old one, bore the new one to suit and weld together. Its still going strong.
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    Home-made collet chuck and collets - some Q's

    Going back to 1968 Mitutoyo came into the UK and were treated with great skepticism, but as they were a third of the price of all the known brands were very popular with apprentices and quickly became the tool of choice, they were also the first to have carbide anvils on the mics, so basically...
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    Myford lathe

    In the past for my lathe, an old Wilson was to find a gear of the correct form etc turn down the O/D of the old one, bore the new one to suit and weld together.
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    Mitutoyo or Starrett?

    Something that has not been mentioned is repeatability, please if checking an instrument for calibration check it repeats as well. Another issue which is just a suspicion of cheaper digital instruments is drift in the readings, please check zero before measuring. And a personal gripe why do they...
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    Home-made collet chuck and collets - some Q's

    My comment refers to the original subject of collets and the desire to be able to hold long lengths of bar if the thread had been followed this would be apparent. It is common for post to wander a bit and then come back to the original main topic.
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    Home-made collet chuck and collets - some Q's

    With regards to holding long lengths in a collet Smart & Brown lathes used a system that had a tubular draw bar to close the collet via a hand wheel on the end of it, I seem to remember it having about a 1" bore but I don't recall the taper. (it was 50 years ago).
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    Drafting linen

    I apologize for going off topic slightly, I started my apprenticeship at CAV's (lucas) which occupied the old Shorts seaplane works, I had a job that required ally sheet and was told to go and get some from the "tunnels" which were used as storage ( napolionic tunnels connecting the river with...
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    Part support while milling

    There is a sight called clickspring.com this guy makes clocks and the like, he uses a sacrificial support usually ally and super glues the component to it no clamps, you can then machine the whole profile in one go which is very handy at times, the component is released with a little heat and...
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    How to use a Conical Edge Finder

    Before the advent of wobblers etc we were taught to pu a knob of putty or similar on the ebd of the chuck and stick a pin in it vertically, run the machine and move the pin with a pencil/finger whatever so that it runs true, and with young eyes you can center a job very accurately (I was 16 at...
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    Werowance attempts Upshur Vertical Single

    We were taught how to grind a drill for flat bottom holes, as the hole acts as a drill guide no pilot is required and chatter should not be a problem, this was a perfectly acceptable method then and I see no reason why it should not be used now.
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    Silver soldering.......a newbe to boilers

    With regards to soldering boilers I believe you can get silver solder with different melting temperatures or you used to be able to a few years ago, start at the highest temp and work down, still a lot of skill to get the subsequent temps just right, never tried it myself so best of luck.
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    Trouble with cut off operations

    I understood the unscrewing bi,t it was the tool post and direction that was making me think I was more daft than I actually am. As an aside on the subject of screwed chucks I have seen some Chinese type machines with set screws to lock the chuck on the nose which I think is a suspect method if...
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    Trouble with cut off operations

    tomitor45 I have just re-read your post several times to find out where we are at odds, I now think I understand your method. Are you using the front tool post, rotation in reverse and tool inverted which I agree will cut, good bad or indifferent on which I can't comment, however at the end of...
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    Trouble with cut off operations

    Tomitor45 says to reverse the spindle and turn tool upside down, this will result in the tool just rubbing, if the tool is to be turned upside down the rotation is not changed. We used this method on short runs of components using form tools on a centre lathe, set so the saddle did not have to...
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    Feasibility of small 4-cycles in practical usage?

    Cox produced a Peewee and a Teedee at .020 & .010 not sure which is which, we used to convert rubber powered models into glow power in my youth (to long ago to admit to), surprising the height you can get on a short motor run, invariably resulting in running after the model whilst looking up...
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    Complete Model Engineering Shop

    Hi I will meet your price of £1500 please contact me on the number or email details sent separately.
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    pre drilling for holes

    on the contrary to a reamers are not parallel but very slightly tapered for some of its length and they do cut on the flutes or you would struggle to get a finish, this is especially so for hand reamers as you would have difficulty starting them, that's why you are able to enter the reamer into...
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    pre drilling for holes

    Contrary to a previous post reamers are not parallel but very slightly tapered for some of its length and does cut on the flutes or you would struggle to get a finish, this is especially so for hand reamers as you would have difficulty starting them, that's why you are able to enter the reamer...
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    pre drilling for holes

    If the knee of the machine is to be used as a method of feed as suggested previously, lock the quill as it can still pull it through. I think this method is a terrible and potentially dangerous idea, as it can bring your face nearer the work piece if you have to bend to do the feeding. I have...
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    Centring in a 4-Jaw Chuck

    In reply to Cogsy you are quoting two different opinions mine is the one in bold type the other is from Noel Gordon, however I completely agree with his comment regarding chuck safety, even for a small machine it is bad practice which will eventually become normal. The potential for serious...
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