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Type: Posts; User: billzweig

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  1. I would use a polycarbonate (lexan) that can be...

    I would use a polycarbonate (lexan) that can be bent and formed just like metal sheet.
  2. Most of my work is R&D in medical and nuclear...

    Most of my work is R&D in medical and nuclear medicine field. In both cases any product or process developed and once approved cannot deviate from the submitted and approved description. It is not...
  3. The nickel plating solution can be electroless...

    The nickel plating solution can be electroless plating or electroplating. In both case the part needs to be totally clean and free from any grease or oil, but electroless is usually more forgiving...
  4. All my chemicals are stored in cabinets and...

    All my chemicals are stored in cabinets and separated according to type; acid with acids, etc. As for keeping the products a long time - yes, I would not keep a a container of milk for years, but...
  5. Dangers of chemical storage plastic containers

    I do quite a lot of chemical process like electroforming, chemical etching and polishing, electroplating in wide range of metals, vapour deposition and so on. In fact I do have a small chemistry lab...
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    I am not a woodworker, but like to work in wood....

    I am not a woodworker, but like to work in wood. Most of the time I use the Stanley bailey No 3 corrugated, the Millers Falls No 85 and the small E.C.E block plane.
    242112
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    I do not remember how expensive those were, but...

    I do not remember how expensive those were, but definitely cheap quality. And yes, the rating on many tools and appliances is ridiculous...but maybe somehow in the peruse of "green" vacuum cleaner...
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    I have no experience with LED fluorescent lights...

    I have no experience with LED fluorescent lights - still using 40W T12 48" 6500K and quite happy with the light and the long life of the tubes (my relatively small shop using only 48 tubes). However...
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    This is a grossly inaccurate statement. I have...

    This is a grossly inaccurate statement. I have worked all my life - and still do - in R&D in medical, optical, nuclear, mechanical, electro-mechanical etc. fields, designing, making and bringing to...
  10. The machine is basically a spindle mounted on a...

    The machine is basically a spindle mounted on a stand. Dumore tool post grinders (many models) are common and rather inexpensive in used condition (just take a look on Ebay or similar). Best for your...
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    I have watched the clip again and thought how...

    I have watched the clip again and thought how lucky are those workers compared to other guys rotting and massacred in the trenches...
  12. As Bill D suggested, putting the tank at the end...

    As Bill D suggested, putting the tank at the end of the run can provide more stable air pressure. Depending on the length and diameter (and the number of elbows)in the air line the pressure at the...
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    The gun loaded on the train is the the 210mm...

    The gun loaded on the train is the the 210mm Morser.
  14. Thread: Toyota KC

    by billzweig
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    769

    Nissan was making army trucks in WW2 as well.

    Nissan was making army trucks in WW2 as well.
  15. While a lot depends on the type of the tube,...

    While a lot depends on the type of the tube, annealing can make a big difference. Under somehow similar circumstances I heat the steel in a muffle furnace to 600C and then leave in the furnace to...
  16. Those little shapers can do a good job. In the...

    Those little shapers can do a good job. In the past I was using the simple Adept No2 hand shaper for cutting keyways in small gears and with a simple jig locating the gear in the vise all it took was...
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    For smaller drills (up to 1/4") the CHRISTEN...

    For smaller drills (up to 1/4") the CHRISTEN LC-21 is a great tool. For larger drills (up to 1.5") the CHRISTEN 2-32 is probably the best machine available. Both are quite expensive new but often...
  18. I was using glued o-rings (very large...

    I was using glued o-rings (very large diameters,from an O-ring cord)and those worked well. Essential to have a good alignment. After gluing I very lightly sanded the joint area surface with 600 paper.
  19. Thread: Azon

    by billzweig
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    In a somehow similar category ware the acoustic...

    In a somehow similar category ware the acoustic torpedo used by the Germans in WW2 and the US VB-6 Felix. While the Frtiz X and Azon were remotely radio guided, the acoustic torpedo and the heat...
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    It is interesting to see there the statement:...

    It is interesting to see there the statement: "...Large guns can therefore be made in France just as well as in Germany..."
    In the 1870 French-Prussian war the Prussian victory was, in large...
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    I often do SW designs with hundreds,sometimes...

    I often do SW designs with hundreds,sometimes more than thousand parts. Fasteners, bearings, retaining clips and other parts are included in the assembly and in order for all to fit without conflicts...
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    One of the simplest way to true diamond wheels...

    One of the simplest way to true diamond wheels (after all is done to centre accurately on the hub) is to run it against mild steel plate until it runs true. Use a soft dressing stone after to open...
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    Some of this seems contrived like the supposed...

    Some of this seems contrived like the supposed surprise at the problems of boring the thin section. As an experienced machinist I am sure he knew well this will happen. And the machining supported by...
  24. This photo - I really like it - seems to be...

    This photo - I really like it - seems to be related to the same subject. The young lady is inspecting some parts on the Pratt & Whitney Electrolimit Gage with Rockwell hardness tester and other...
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    SW toolbox is convenient but very often creates...

    SW toolbox is convenient but very often creates problems when opening an older file in a newer version. I do use the toolbox but save the toolbox files as copy to a new file with a new name (for...
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