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measuretwice

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measuretwice last won the day on July 14

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About measuretwice

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  1. measuretwice

    DJMiles

    Us beginners must take extreme measures. I photograph every step. I've a camera with a macro lens set up on a table top tripod with an infra remote. I just keep sliding the movement or parts on a cushion under the camera and snap away. Its saved ,me several times. Of course once a bit of experience comes, you start to understand whats what and where it goes, but I'm on the early part of the curve so photograph like crazy
  2. measuretwice

    A handle for a Levin

    Did you manage to squirrel away some drops :) It would be case hardening, only way to harden a low carbon steel. Basically you soak it at temp in something it can draw carbon from and you get a high carbon outer layer, then quench. Think mild steel with an outer skin of O1 (sort of). It can be really useful as you leave the outside dead hard (no temper) but still have the ductile core so its not brittle. Same idea as the gunsmiths do for colour pack case hardening, You can do this at home with smelly stuff like bone meal, but its hard to get more than a few thou depth; the commercial guys with the nasty bath can get 50 thou with an overnight soak. I can remember doing the cyanide bath in high school 40 years ago on the grade 9 project, a tack hammer. I can't imagine a school allowing it today with the general level of paranoia. Also, you still get mild steel strength, not tool steel's higher tensile strength. Right on with the welding, but it does braze and silver solder well
  3. You said the collection of GST in one post? As much as I hate tax, if they are just collecting the sales tax its not a tariff or barrier to entry, i.e. still a level playing field with local retailers. Presumably there's a value filled out somewhere on the shipping documents. They're hardly going to go after the sender, they'll stick it to you. Likely parcels arriving from a non VBA sender will be subject to the tax, and possibly an admin charge. That's what a lot of carriers do here, worst is UPS. $6 in VAT due and a$27 admin charge from the carrier. don't pay, you don't get the parcel. Feels like extortion with the excessive fees. Grrrrrr, I feel your pain.
  4. measuretwice

    Measuring watch Hands

    I saw that too and notice the OP's shown above also has Wimding. Is this a "thing"?
  5. measuretwice

    Boley D-bed Cross Slide Attachment

    They're German so the answer is yes...whether they ever used an imperial thread is doubtful but its also impossible to say that it never happened. Dollars to to donuts its metric. do you have a caliper? even a good rule. Start as I described by counting crest over a known distance and compare that to the graduated dial, there should be an obvious match
  6. measuretwice

    Boley D-bed Cross Slide Attachment

    you've got the 4mm part, now you need to know pitch. As OH suggests use a thread pitch gauge....or set your caliper for say 20 mm, set one leg at crest and count the thread crest to the next leg...divide that by 20 and you have your pitch Its going to correspond the the markings on the graduated collar , so double check against that, that it makes sense. i.e. if the collar have 50 divisions, and each means an advancement of .01 mm, the thread pitch should be .5. You can get to the pitch directly that way, just that the collars aren't always clearly marked. Having said all, I really question re tapping without a lot of careful consideration. What could have cause this? Is it tight only when assembled, or will nut not smoothly run on the feed screw when apart? If it goes on apart but not assembled, its likely an alignment issue. If won't go on in either case, its likely a damaged male thread. Internal threads wear and get more loose, not tighter....unless its something catastrophic. External threads otoh are easily subject to dings and bruises. If the external is damaged, the last thing you want to do is run it through the nut else you risk damaging the nut....a feed screw is a fine precision element of a machine tool and they must treated with care. i would start by carefully examining the male thread with a loupe for any imperfections. With a very fine watch makers file, remove them or if there is a lot of damage, get a die and chase it. Get a quality adjustable die and do it very carefully - too much and instead of chasing it you remove to much and change the pitch diameter and greatly increase backlash....do any or all of this with the utmost of care
  7. I've a penchant for these small Swiss machine tools. This 3 of 4 Schaublin 70's (one is a basket case in need of reconditioning which will be an interesting project) and I just finished painting this one. #2 has also just finished being painted and #1 didn't need it (will try to ad photos at some point). I'll probably scale back to two, I'm in deep with this old iron disease. I thought you guys would get a kick out of it. I didn't bother painting the drive and motor, getting tired of painting. Paint is PPG line 7 enamel, RAL 7031 applied with an airbrush
  8. measuretwice

    feintaster tool .

    agree with the other posters, i use it mostly for 'reverse engineering'; measuring up something that i want to make. I'd thought of making one but fortunately ended getting one as part of a lot purchase...At that price its a no-brainer imo
  9. measuretwice

    My Pulrta 10 Lathe

    Very nice, Pultra's are high quality machines, they were a brand of Smart Brown who rank among the finest lathe makers, ever. I'm pretty sure that lathe is 8mm, despite the name. Tony's lathe site explains it all - the 8 and 10 geneva lathes were both 8mm. Can you measure the body dia of a collet and let us know? http://www.lathes.co.uk/pultra-8-and-10/ As for drilling, I don't think its going to happen readily with that tailstock. Few 8mm lathes seem to have that function - tailstock collet mounting. The reason is (afaik) that its not really needed, holes are made by make a making a small centre mark with a graver then drilling with the drill held in a pin vise. The hardest part is make the centre without a pip in the centre of it, but ounce that is figured out its quite easy and being handheld, is very sensitive which is needed for small drills. Pultra definitely made a 10mm lathe - a shot of mine is below. its a treat to use, its a bit bigger than the 8mm collet lathes https://imgur.com/EVGFDOG
  10. measuretwice

    De-tangling the tangled hairspring

    nice work, nice photo's, nice explanation - thanks!
  11. measuretwice

    My First Staking Set Advice

    Those number seem a bit high compared to what I see on the classifieds, they must be pristine. Star are Swiss and seem like good quality. i have or had a set, can't remember, sold some stuff lol. Star is one of the few still in business and making Swiss watchmakers lathes
  12. measuretwice

    My First Staking Set Advice

    that's the "inverto" model isn't it? very nice set. I've got I think the same set but am missing the lever on the jewel setting bit, and the box top. How someone as careful as a watchmaker has to be loses the wood box top is anyone's guess, oh well. Sets are quite common on the classifieds it seems and it does not hurt to have a few. I've had a couple of occasions where one set one will have just the thing as the variety of stakes is not the same between them all Congrats on a great set
  13. measuretwice

    New lathe coming

    for sure, but its still machining. When I started working on watch parts coming from larger lathes, the size at first seems intimidating, i.e. turning a .004" dia pivot. The equalizer is magnification and hand held tools. Hunched over turning with a loupe, that minuscule thing is like working on a 3/4" bar on your Hardinge. Not that I'm super experienced, and it is different, but you don't need the super hero suit . Work by hand is kind of fun, I made 1/8" tall wine goblet out of brass for one the kids - the free had turning reminds of wood turning. I used that same hand technique turning on my DSG recently as shown in the Schaublin parts thread, so the techniques can be used in the macro world as well A .004" thou hole is small, I like the arrangement for hand feeding it....replicates what JD's tailstock will do.
  14. measuretwice

    New lathe coming

    on that size, and with the drawbar, the tailstock quill should be for the same collets as the headstock. A lathe with such a tailstock seems a less common and often expensive feature most watchmakers lathe don't have, so well done JD. I have 10 and 12mm lathes with this feature but my watchmakers lathes don't so its old school drilling - make a centre with a graver and then drill with a hand held pinvise.
  15. measuretwice

    Ebay flooded with Carriage clocks from China

    To me the general proportions and aesthetics of some of the above miss the mark so that may trigger a warning bell, and some just have obvious flaws in fit and finish.....but I'd love to hear more on what you guys are seeing. speaking for myself, I really like the details and reasons (at least the less obvious ones) for the comments, helps us beginners learn
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