[TheForge] bolt thread repair tool

[Bruce .]

What they made was chasing tools. Threads were cut by bootstrapping -- till
you could make a die from the first bolt, etc.   We're spoiled
by commercial standardized taps and dies.  Not that I'm complaining ...

Bruce
NJ

On Mon, Feb 23, 2015 at 4:08 PM, Peter Fels & Phoebe Palmer <
artgawk at thegrid.net> wrote:

> Jerry, on the couple of screwed up  post vise vice pivot bolts i’ve
> rescued,
> they were neither standard thread nor diameter.
> I’m a guy who picks up bolts and nuts where ever i saw them abandoned
> for around 50 years, and my misc bolt collection is pretty extensive,
> but after hours of rooting around in my boxes, buckets and bins…no matches.
> Gotta suspect they made their own thread taps and dies pretty commonly
> back then.
> Somewhere in my collection are some very crude, hand made thread dies.
>
> On Feb 23, 2015, at 12:22 PM, jerry Frost <akfrosty at mtaonline.net> wrote:
>
> If you're talking about dressing an Acme thread you're talking about a
> different bread of cat. Square and feed screws are different for a reason,
> they aren't supposed to lock through stretch like nuts and bolts.
>
> Cleaning buggered threads with a thread file literally takes a few seconds
> and it's right when you're finished. Trying to clean them with a triangular
> file is a long difficult process with questionable results.
>
> You needed to straighten the bent screw first, then chase the threads to
> make the repair you mention. It'd probably be almost easier to just cut a
> new one. I never liked cutting threads on a lathe probably because I'm not
> good at it. Dad could do it in his sleep. Maybe I should've practiced more
> eh?
>
> Jer
>
> -----Original Message-----
> From: TheForge [mailto:theforge-bounces at mailman.qth.net] On Behalf Of
> Bruce .
> Sent: Sunday, February 22, 2015 3:09 PM
> To: Blacksmithing List Sponsored by ABANA
> Subject: Re: [TheForge] bolt thread repair tool
>
> Well, two reasons.  Because you can.  And because filing threads can be a
> drag.
>
> The post vise bolt I fixed with a triangular file was bent and miserable.
> I tried chucking it into the lathe, but it was far too bent for that.  I
> did spin it slowly in the lathe while using the triangular file -- that
> worked nicely.
>
>
>
> Bruce
> NJ
>
> On Sun, Feb 22, 2015 at 5:45 PM, Peter Fels & Phoebe Palmer <
> artgawk at thegrid.net> wrote:
>
> > I can imagine that if you have an extra tubing cutter, you could
> > regrind the axle so as you rotate it it would conform to different
> > thread pitches, and you could regrind the blade to the 60*(?) thread
> > angle required, though it doesn’t resolve parallel tracking problems
> entirely.
> > But why?
> >
> > On Feb 22, 2015, at 8:30 AM, Bruce . <freemab222 at gmail.com> wrote:
> >
> > I wonder whether a tubing cutter or pipe cutter would do the same.
> > Might have to re-mount the cutting roller on a smaller pin so it can
> > rotate slightly off-axis.  I'll have to give it a try.
> >
> > I don't have much use for it, but I did have to clean up the pivot
> > bolt on an old leg vise a few months ago and it might have come in handy
> for that.
> > I used a triangular file, which worked.
> >
> > Bruce
> > NJ
> >
> > On Sun, Feb 22, 2015 at 11:02 AM, Rob Fertner <rfertner at cox.net> wrote:
> >
> >>
> >> I've mentioned this website before. They've recently posted about a
> >> tool that may save the threads on a bolt. This may come in handy
> >> with old
> > stuff
> >> you're repairing and you don't want modern looking bolts to spoil
> >> the
> > look.
> >>
> >> http://toolguyd.com/threadmate-tools-repair-just-about-any-threads/
> >>
> >> Rob
> >> Wichita, KS
> >>
> >> ______________________________________________________________
> >> TheForge mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/theforge
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:TheForge at mailman.qth.net
> >>
> >> TheForge mail list group photo site is http://www.shutterfly.com
> >> Login: blacksmithblacksmith at hotmail.com
> >> Password: anvil
> >>
> >> This list hosted by: http://www.qsl.net Please help support this
> >> email list: http://www.qsl.net/donate.html
> >>
> > ______________________________________________________________
> > TheForge mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/theforge
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:TheForge at mailman.qth.net
> >
> > TheForge mail list group photo site is http://www.shutterfly.com
> > Login: blacksmithblacksmith at hotmail.com
> > Password: anvil
> >
> > This list hosted by: http://www.qsl.net Please help support this email
> > list: http://www.qsl.net/donate.html
> >
> > ______________________________________________________________
> > TheForge mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/theforge
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:TheForge at mailman.qth.net
> >
> > TheForge mail list group photo site is http://www.shutterfly.com
> > Login: blacksmithblacksmith at hotmail.com
> > Password: anvil
> >
> > This list hosted by: http://www.qsl.net Please help support this email
> > list: http://www.qsl.net/donate.html
> >
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.shutterfly.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.shutterfly.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
> ______________________________________________________________
> TheForge mailing list
> Home: http://mailman.qth.net/mailman/listinfo/theforge
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:TheForge at mailman.qth.net
>
> TheForge mail list group photo site is
> http://www.shutterfly.com
> Login: blacksmithblacksmith at hotmail.com
> Password: anvil
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>