[TheForge] Off-topic: ...dynamic balancing, vibration...

[Bruce Freeman]

Probably good advice, but no can do.  Where money is involved, I have
to take a first go myself.  Other folks told me to draw up my parts
and send them out to be made in a professional shop.  Had I done that
I would never have got as far on this project as I have.  The
turn-around delays alone would have done me in.  Not to mention the
lack of opportunity to see for myself which designs were easily
executed and which were bears.

On Wed, Jul 15, 2009 at 12:22 AM, Mike Spencer<mspencer at tallships.ca> wrote:
>
> Bruce wrote:
>
>> So, I've spent the day reading up on dynamic balancing and have
>> learned a fair amount, but nothing I can put to immediate use.
>
> In the mid-70s, I was working in a sports/foreign/performance car
> shop.  I visited a friend in Marblehead, Mass. who built formula Ford
> engines and watched him use his dynamic balancing machine on
> crankshafts that were going into high-performance racing engines.
>
> So when I got home, I started researching dynamic balancing because
> our existing auto racing customers might be happy to pay for the
> service and, as well, there was a lot of off-shore work going on in
> Halifax and balancing engine and turbine parts might have been a cash
> cow.
>
>> As anyone knowledgeable in the field can tell, I'm in over my head
>> here.
>
> Your (mathematical) head may stand higher than mine but that's what I
> found, too.  This isn't something you can cobble together with duct
> tape and a TIG welder unless you're Danny Hillis.
>
> Find a high-end speed shop, racing engine builder, turbine
> maintainance shop or the like in your area and get them to put your
> as-good-as-you-can-get-it piece on their machine.  There are just too
> many vibrational modes and degrees of freedom to hand-hack it.
>
> Or maybe I'm just a wimp, y'know? :-)
>
>
> - Mike
>
> --
> Michael Spencer                  Nova Scotia, Canada       .~.
>                                                           /V\
> mspencer at tallships.ca                                     /( )\
> http://home.tallships.ca/mspencer/                        ^^-^^
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-- 
Bruce
NJ

The total lack of evidence is the surest sign that the conspiracy is working.