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Type: Posts; User: Wlodek

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  1. Replies
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    Devices like this this have been around for...

    Devices like this this have been around for decades in the form of a remote readout and transducer. I have one from the 40s, but those are still made in many forms and sizes. A popular one is the...
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    382

    Sealed bearings need no extra lubrication....

    Sealed bearings need no extra lubrication. However your photos show shielded bearings which are not the same. The shields are not leak tight and only meant to prevent dirt ingress.
    I am not sure...
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    949

    The burnisher is producing a fine finish, though...

    The burnisher is producing a fine finish, though I do not think it is the same as diamond turned parts on a tool-room lathe with a precision spindle that gives almost optical quality. One think I...
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    I hope not to digress too much from the main...

    I hope not to digress too much from the main topic. The French built Russian battleship Tsesarevich shown in the last photo was a very advanced for the time design with electricity operated turrets...
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    The Obukhov State Plant is also known for it...

    The Obukhov State Plant is also known for it production of other military equipment and tanks starting with the T-18; a light tank based on the popular design of Renault.
    During the siege of...
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    1,496

    No,I shall call you in vain.... Thank you! Most...

    No,I shall call you in vain....
    Thank you! Most generous. I will be away for a few weeks (and possibly absent on the forum), but shall contact you when back. And following the above advise, will...
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    654

    In fact I seem to have one of those switches....

    In fact I seem to have one of those switches. Here it is already wired for reversing. Made by A-H&H, though I am not sure if still in production.

    255442
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    919

    Both above suggestion are the correct answer. In...

    Both above suggestion are the correct answer. In any case, a punch mark is not deep enough to secure a set screw, the cone of the screw should be fully engaged in the shaft. When making a similar...
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    654

    I have seen DT switches that would mechanically...

    I have seen DT switches that would mechanically lock when moved from one side to the central, off, position and needed to be pushed a touch back again to unlock and the move to the other side - in...
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    1,496

    Thank you, Marcus, for the generous offer. I...

    Thank you, Marcus, for the generous offer. I shall certainly would like to take you on it when on the mainland (I am near Courtenay) and maybe will send you a PM when planning this. I would like to...
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    1,496

    One can actually sharpen the face quite a number...

    One can actually sharpen the face quite a number of times without loosing much. Here is a typical 3 degree 0.25" square broach as new and sharpened by removing 10 microns (about 0.0004") - typical...
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    I recently bought a 5.5KW 220V (single phase in)...

    I recently bought a 5.5KW 220V (single phase in) variable frequency drive for my surface grinder motor. Ebay, for about US$220.00 and free shipping. Works very well. I have one on just about every...
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    I agree with you that there is quite a lot of...

    I agree with you that there is quite a lot of hype regarding 3D metal printing for the medical market...as indeed in the whole area of 3D printing in general. But despite the hype and the many...
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    Yes, this is exactly what I do have in mind now....

    Yes, this is exactly what I do have in mind now. I am looking into making this setup on my Cincinnati No2. I do not have the internal grinding attachment, but can make a holder for a micro die...
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    949

    You are completely right and I am aware of the...

    You are completely right and I am aware of the fact that a regular ball bearing is not designed to work in this way. Shown is just a first test and used with light force on non-ferrous materials. I...
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    In all the internal broaches I have seen the...

    In all the internal broaches I have seen the front is a spherical concave form. Suppliers do offer sharpening service, but I do all may cutter sharpener myself as I find it much more cost effective -...
  17. Great job! Hard to believe when one sees the...

    Great job! Hard to believe when one sees the starting stage and the finished restoration. How accurate is the machine now? What sort of flatness you get on the full travel area?
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    Sharpening rotary broaches

    Is there a simple way to sharpen the concave tip of internal rotary broach? The tip is a concave spherical surface (attached an exaggerated picture) and the radius is different for different broach...
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    Casting metal was done for the last few thousand...

    Casting metal was done for the last few thousand years and is not going to disappear. But like any business pattern making shop can do well or poorly and the success depends on many factors. For...
  20. Certainly a very nice work (including making own...

    Certainly a very nice work (including making own cutters and other tools) that requires a lot of skill - especially with the relatively small and simple machine tools he is using. The chuck looks...
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    I've arranged to see the system at the plant next...

    I've arranged to see the system at the plant next week and will go to Vancouver (over three hour trip each way)to get more info and, hopefully, to see the operation and results. From the short phone...
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    Roller burnishing tool

    Roller burnishing is mostly found in production, but can be a useful process in any shop. Production tools like this are expensive, and the cheap one are...cheap. Accurate and constant pressure force...
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    As Larry indicates, more information will be...

    As Larry indicates, more information will be necessary to get a clear picture. If you want the reduce the wall thickness of 1/16 ID tube to 0.002"...and over a reasonable length let say no more than...
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    3D metal printing

    I am following this topic for the last few years and could use a system in my shop...if the price, size and operating cost (all preferably on the smaller scale :)) and specifications are right. This...
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    Rivett 608 Wooden Stand...

    Rivett 608 Wooden Stand
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