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drill/tap in frames



 
 
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Old July 11th 18, 02:33 AM posted to rec.bicycles.tech
Jeff Liebermann
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Posts: 2,875
Default drill/tap in frames

On Mon, 9 Jul 2018 22:58:39 -0400, Frank Krygowski
wrote:

Actually, I mentioned Rivnuts when I posted the very first reply to
Emanuel's original post. That was about eight hours before the post you
quoted.


Sorry, I missed that.

Also note that he indicates that "the chainguard is mounted on the
stays...". Which of the stays, he doesn't mention, but it doesn't
matter. Chain stays and seat stays are both rather small diameter.


The reason I'd like photos is that Emanuel seems to imply that a hole in
the stays is the original method of mounting the chainguard. I think
that's unlikely. I wondered if there are brazed-on tabs or some other
feature that we don't know about.


Photos, from his web site:
http://user.it.uu.se/~embe8573/work-photos/

This might be the bicycle. Notice the chain guard and welded mounting
bracket in the middle of the right chain stay:
http://user.it.uu.se/~embe8573/work-photos/hermes.jpg

Mo
http://user.it.uu.se/~embe8573/work-photos/stand.jpg

ISTM that Emanuel isn't very clear on many bike-related terms in
English, and he seems to be a novice mechanic in general. Some of his
descriptions may be unintentionally misleading.


Yep, probably because he thinks and writes like a programmer. In the
middle of the main program, he services an interrupt and jumps to
different topic. Since the there's no return pointer, he doesn't go
back to the main program. He also tries to service all the interrupts
and topic changes in parallel, when it would be better if they were
handled serially. A general failure to define the parameters and
variables used leave the user wondering what equipment he's working
with. Without initial comments, it's also difficult to know what he's
trying to accomplish. I think his postings would be less buggy if he
masked all interrupts, executed only the main program, added enough
comments to help debug the problem, and only then branch off into
subroutines, which hopefully will eventually return control to the
main program.

Programming Review (poetry)
http://members.cruzio.com/~jeffl/poetry/code.htm


--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 




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