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  1. R

    Dremel 732

    Does anyone have one of these Dremel 732 motor flexible drive units? If so is it possible someone could give me the details of the flexible drive inner core. This part is no longer available and is missing totally from my Dremel. I see no reason why I can't make one if I can find the details of...
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    Compound steam engine.

    Just an idle thought about compounds. If I built an engine having 1" and 1.75" cylinders with a 1" stroke I would have a pretty normal compound engine expanding steam about 3 times in each cylinder. What would happen if I built an engine with HP 1" bore x 1" stroke, LP 1" bore x 3" stroke...
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    M2 Tool Steel

    Could anyone suggest where in the UK I could buy short lengths of unhardened half inch or better yet 0.497" diameter M2 tool steel. I probably only need 5 feet of this a year. I am making cylindrical bits for a friend. They need to be 0.910" long and 0.498 +0.001 - 0.002" diameter. In the past...
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    Collets

    Does anyone have the specifications for MA99E collets (Myford) they could let me have? I need to make a couple of odd sized ones and as most of mine are old and battered it would be good to make them to specification rather than measuring mine and averaging out the wear / damage. What grade of...
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    Machining 9 carat gold

    A friend has talked me into making a set of darts for him out of annealed 9 carat gold. This involves taking a piece of 6mm bar 55mm long, turning a dome on one end and drilling it 0.087" turning it round and drilling and tapping the other end 2BA then turning a series of grooves 1/32" wide...
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    Suitable material for nut to run on stainless steel thread

    I need to make some special nuts to screw onto a 3/16 BSF thread that is only 0.275 inches long cut on 316 stainless steel. The material for these nuts need to be machinable and very wear resistant as the typical life cycle would involve the nuts being screwed on and off about 5000 times. I am...
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    Holbrook T13 lathe

    Can anyone tell me where are the bolts that hold the headstock to the bed on a Holbrook T13. I know it sounds stupid but I can't see them in the bottom of the gearbox and there doesn't seem to be anywhere else for them to be. I have a broken leadscrew reverse which is only repairable if I can...
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    Shiny bands on work

    I'm getting shiny bands on work when I am turning under power feed on a Myford Super 7. The bands are I guess about 20 thou wide and at regular 1/8 inch spacing. They are cut into the work by an amount unmeasurable with my equipment but are the last things to vanish when I lap the OD. Because...
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    Module pitch worm

    I have recently acquired a Holbrook T13 lathe, in need of a few minor repairs, lead screw reverse is broken and 6 of the change gears are missing. As you can see from this page of the manual the lathe will cut Diametrical Pitches, Metric Pitches and BA threads just by changing the input to the...
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    Richard's little shop of horrors.

    I think I need some more space. The shop is always messy but it is a lot worse than usual today as we have only just put in the Holbrooke lathe which was as usual a rush job as the man who gave it to me wanted it gone now so everything got pushed out of the way to fit it in. I started with...
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    Cincinnati Taper

    Can someone tell me what the tapers are in the work holder of a No 2 Cincinnati Tool and Cutter Grinder? I thought they were 5 morse and 50 international but my 5 morse adaptors don't fit they are loose at the small end by about 0.020", which means either the socket is strange or someone has...
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    Cyclone

    Has anyone here built a cyclone steam separator for a small boiler. Do they work in our sizes, is it possible? I'm sitting here a thousand miles from the workshop planning my next project when I get home. I am thinking of a vertical boiler about 3 inch diameter as a plumber friend of mine is...
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    Dividing head

    Hi guys, been away from the workshop for 6 months due to a family crisis but this forum when I have had access to a computer has contributed greatly to my sanity. Thank you one and all. Now my problem. I have a very nice spiralling dividing head (make unknown) set up on the Bridgeport and it...
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    Reality Check please

    I have been offered the following band saw but is it likely to be as useful as it looks. I sometimes get over enthusiastic and buy stuff that is nice but really doesn't get used, hence the request for others opinions. It is rather overkill for a model shop but then I think it will never wear out...
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    Die construction

    Can anyone recommend a good book on making press tools. I have Die Design Fundamentals by J.R. Paquin which is fantastic if you want to know how to design dies has all the information you need on clearances, die blocks, blanking, punching the whole lot but I really need a book on how to put it...
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