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  1. W

    US State Boiler Code

    Steamchick Around 1993, I built my first steam creation, a Bolton No.7 mill engine. This sat around for years, slowly deteriorating. It had done some steaming using the bulging vertical boiler. After the bulges, steaming stopped, but the engine lives on and has been the subject of a full...
  2. W

    Odd-leg calipers ??

    I used to use my Jennies quite a bit, especially when marking out, for lines parallel to an edge. Now I have two alternatives, one is a marking gauge not unlike the one used by woodworkers, but made from metal, the other is a vernier caliper equipped with a carbide scribing point. It may be...
  3. W

    Odd-leg calipers ??

  4. W

    Odd-leg calipers ??

    I have a couple of pairs of 'odd leg' calipers. They used to be known - and probably still are known - as Jenny calipers: "jennies".
  5. W

    Poor mans slotting head

    I usually use a 3 ton mandrel press, which uses a simple, (about 1-1/2" square rack, and its mating gear is on the handle shaft. i have another 1 tonner for smaller stuff. I often use a piece of pipe over the handle bar to increase leverage if needed. I've not counted, but i think my 'home'...
  6. W

    Poor mans slotting head

    I have to confess an omission, in that I had written about 'my' broaches in 2013! Nothing else has changed, though. i simply didn't look to page 1 of these posts.
  7. W

    Poor mans slotting head

    Attache are pikkies of the homemade broaches. I do not have many 'bought' broaches, as they are so expensive, at least in Australia - where everything is expensive. I have one short commercial broach: any takers? And I do have all the gear for the commercial broaches and I do 'push' them in use...
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    Poor mans slotting head

    Keyway broaching usually implies a nice, expensive - and easily broken - 'push' broach. Industrial convention is that broaches should be 'pulled' and that's OK if you have the wherewithal/space etc. My broaching is 'pushed' and the broaches I make myself. Push broaching is sort of asking for...
  9. W

    Lapping cylinders - compounds

    A set of 1-1/2" bore, cast iron cylinders I had made were inspected by a very experienced fitter, whose specialty was reconditioning hydraulic cylinders. He concluded that 'my' bore was straight and, very importantly, parallel. I was intending to lap them and he answered with a very emphatic...
  10. W

    Wanted 3/8-16 bolts

    Bolts: the 3/8"-16 size is common to both UN series and Whitworth. The thread angles differ: UN series is 60 degrees and Whitworth is 55 degrees (rounded). It may be that Whitworth may be very easily obtainable from the UK. Certainly here in Australia, 3/8" Whitworth bolts are very available...
  11. W

    Using brazing rod for small parts - good idea? ..and what about the flux?

    Yeah, your US/UN form threads aren't as common as they once were and a particularly irritating one use is the 4-40 used on DB25 breakout connectors. Gawd, i frittered hours away trying to find screws to suit. i now have some on order - ex internet. I have, in the past, re-fitted those connectors...
  12. W

    Using brazing rod for small parts - good idea? ..and what about the flux?

    Bentwings has mentioned sources of very small taps and dies and my experience is that the internet is very hard to beat. Of course, you'll be buying stuff from the land of gleat manuflactures, but I don't have an issue with that when the prices are right. Just today, I took delivery of five of...
  13. W

    Using brazing rod for small parts - good idea? ..and what about the flux?

    I've used Tobin bronze as steam chest studs, in 4 and 5mm sizes. TB doesn't usually have flux. In fact, the majority of brazing rods i use do not have flux and in this, i think of the 45% silver I routinely use. I have 45% in both 1.6 and 3.2mm rods. The flux-coated rods have their uses, for...
  14. W

    64DP Steel Gears Suppliers

    Is it possible to re-engineer your setup to suit module system gears? There is any amount of module offerings, in both brass and steel, on the 'net, certainly very many more than the diametral pitch system. And M gears seem to be very much cheaper than DP's. Personally, I have recently sourced...
  15. W

    Money to spend on inserts and holder for lathe

    Like many, i have a collection of boring bars, for both chuck work and between centres. The between centres type shown in other contributors' has the cutter bar hole directly across the diameter. Most bars I've made have had their tool holes at an angle across the bar axis, largely to allow an...
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