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Type: Posts; User: Billtodd

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  1. Replies
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    As Dave says, the sony uses a relatively long...

    As Dave says, the sony uses a relatively long wave length sine signal and uses quadrature interpolation to produce the accuracy. It is not at all like the typical 'ttl' scales used by most...
  2. That's what the Motorsport division use for the...

    That's what the Motorsport division use for the F1 boys , hours and hours of machining (80 on one part!)

    Bill
  3. I converted a 3 jaw to 6 jaw 8-) Shop Made...

    I converted a 3 jaw to 6 jaw 8-)

    Shop Made Tool pics
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    Uk prices for hlvhs tend to be north of 2000...

    Uk prices for hlvhs tend to be north of 2000 depending on condition. That said , there are bargains out there , I know one guy here picked up a very nice machine for £800 .

    They are all going to...
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    Get well soon Sami. Take care of yourself and...

    Get well soon Sami.

    Take care of yourself and avoid any one with a sniff of cold, still plenty of covid about .

    Bill
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    I designed one, but never got around to building...

    I designed one, but never got around to building it.

    https://www.madmodder.net/index.php?action=dlattach;topic=11436.0;attach=29345;image
    tapping head.jpg - Google Drive
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    About as strong a a spider's web ?... Spiders...

    About as strong a a spider's web ?...

    Spiders Ingest Nanotubes, Then Weave Silk Reinforced with Carbon | MIT Technology Review
  8. If you want a simple friction joint, then make...

    If you want a simple friction joint, then make the pivot out of a number of thin plates that are interleaved one to one side next to the other , each pair of plates will add considerable traction ,...
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    Just download it from my link above and save...

    Just download it from my link above and save someone the work!
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    If the knob shaft is free then the gear must be...

    If the knob shaft is free then the gear must be stuck to the shaft.

    The gear shaft is removable from behind the spindle handwheel .

    Remove the handwheel by removing the coiled circlip -ithe...
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    First determine whether it is the knob shaft or...

    First determine whether it is the knob shaft or the gear/rack that is stuck.

    Does the knob have any small free movement? If so then the gear is stiff on the shaft.

    If the the knob is solid...
  12. I rather suspect Rico had riden off :-) PM...

    I rather suspect Rico had riden off :-)

    PM /email ?
  13. LIBS matrix pattern Patent Report: | US10094782...

    LIBS matrix pattern
    Patent Report: | US10094782 | Method and apparatus for fast quantitative analysis of a material by laser induced breakdown spectroscopy (LIBS)



    US10094782B2 - Method and...
  14. WAG: someone testing material with laser...

    WAG: someone testing material with laser analyser? Guess they're thinking that no one will notice in side a tube?
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    Rather than a conventional pin wrench, how about...

    Rather than a conventional pin wrench, how about a close fitting bush slid over the brass with holes aligned to the pin holes. This would allow the full shear force to be applied to the stopper.
    ...
  16. Optical micrometer will measure diameter , if you...

    Optical micrometer will measure diameter , if you set it correctly to the centre of the disc.

    A depth micrometer will measure the shallow impression. If you need to know the gauge diameter (i.e...
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    If you can operate without the Z axis for a bit...

    If you can operate without the Z axis for a bit then swap the motors, they are all the same.
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    Is the glass disc intact? Is the reader block...

    Is the glass disc intact? Is the reader block and pcb ok?

    I think they are only screwed to the end of the motor shaft so not a big deal to fix , if the bits are ok.

    If not, then it may be...
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    I have witnessed bullying like this at work...

    I have witnessed bullying like this at work recently:

    It started with a female behind a desk, "Stuart ! Make the tea . " . Soon another worker joined in, "Yeah Stu I'm thirsty" , then a third ,...
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    Interesting. I've seen one other lathe with a...

    Interesting. I've seen one other lathe with a bevel gear drive , not exactly like this but tyen it is difficult to make out exactly what's what in the one photo here.

    Any chance of more photos?
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    A 5hp single phase motor will vibrate!

    A 5hp single phase motor will vibrate!
  22. Yes it'd be useful to have a zero position...

    Yes it'd be useful to have a zero position output. I thought about modifying my sony (which has a printer output option).

    I suppose the simplest way to mod a dro with led display, would be to...
  23. Yes, the dials are geared so they display both...

    Yes, the dials are geared so they display both English and metric . For me, i prefer the non gear version and a DRO , the geared dial is not as smooth
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    The spring it trapped between the lever and the...

    The spring it trapped between the lever and the coil cover box. There should be a raised boss on the lever lust behind the solenoid. the spring presses on to the boss.

    The spring is about 25...
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    I made this simple device to cut some pipe...

    I made this simple device to cut some pipe formers :

    just a block that holds a couple of bearings and a right angle bracket . Tool is a broken end mill inserted trough a piece of bar.
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