[AT] OT: Cast iron work on a replica cannon

[Hans Krueger]

don't forget

www.fastenal.com

On 5/4/19 1:40 PM, Stephen Offiler wrote:
> Spencer:  I still question the 15mm fastener.  I originally checked 
> McMaster-Carr before I ever commented; now, I've double-checked there 
> plus MSC and Grainger.  These are THE three "go-to" industrial 
> suppliers online.  None carry 15mm fasteners.  They go straight from 
> 14mm to 16mm.
>
> SO
>
> On Sat, May 4, 2019 at 10:47 AM Spencer Yost <spencer at rdfarms.com 
> <mailto:spencer at rdfarms.com>> wrote:
>
>     I’ve been giving this some more thought, and I am actually now a
>     little more serious about metric if you can tolerate the idea of a
>     metric bolt on a canon.. All you need are:
>
>     15 mm x 1 threads per millimeter tap.
>     14 mm drill for initial boring prior to tapping.
>     A 15 mm x 1 threads per millimeter bolt at the length you need.
>
>     No special tooling, no  excessive drilling diameters, etc.  A
>     single thread per mm is a course pitch so it meets that
>     requirement.  This is all fairly cheap, straightforward, available
>     from major Internet retailers and probably your local fastener
>     store if you have such a beast. I am lucky - I have three.
>
>
>     Anyway you go, best of luck.
>
>     Spencer Yost
>
>     > On May 4, 2019, at 9:58 AM, James Peck <jamesgpeck at hotmail.com
>     <mailto:jamesgpeck at hotmail.com>> wrote:
>     >
>     > About 10 years ago I was on a flight to Kansas. I can't quite
>     remember the sequence of events. I heard large men speaking a
>     language I do not remember hearing before as I got on the flight.
>     One ended up seated next to me. Turned out they were from
>     Dronningsborg and were going to Agco in Hesston for a project
>     meeting.
>     >
>     > I asked what they were doing about metric fasteners. The Dane
>     said that they had been all metric until Agco purchased them. They
>     had been switched to mixed metric and SAE.
>     >
>     > It may be irrelevant. Agco shut down Dronningsborg and bought
>     into Laverda. Are the combines made for Agco by Laverda all
>     metric? Why would they not be?
>     >
>     > https://en.wikipedia.org/wiki/Randers
>     >
>     > [Al Jones] Metric is the work of the devil...…..
>     >
>     > Helicoils are wonderful.  Very easy to do and they WORK!
>     >
>     > My white demonstrator Super A that I have been tinkering off and
>     on forever had four badly stripped holes in the torque tube. 
>     Somebody had tapped the 5/8" holes out about 7/8 or so and it was
>     BAD.  There wasn't any threaded inserts that I could find that
>     would be direct replacements.  A machine shop friend of mine was
>     nice enough to make a set of inserts, kind of like the KeenSerts,
>     and install in the torque tube.  Once it's painted I don't think
>     you'll be able to tell that anything ever happened to it!
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