Amber Listserv / Bandsaw question

[JOHN FUDALA]

Hi Andy,

I did a little web search and it turns out I was right:
welding the blades is easy and annealing does the trick.
Check it out for yourself:
http://www.stagesmith.com/gallery/shop_projects/bandsaw_blade_weld_jig/index.html

John

On 6/22/08, Andy Ng <andy.ng.aik.hoe at gmail.com> wrote:
>
> Hiya Mitch. I'm afraid you're right...the repair charge is about 3/4 the
> cost of a new blade and no telling how long the weld last. Looks like I'm
> best off using brand-new blades unless I learn how to be a bandsaw doctor.
>
> Hi Johnno. In answer to your question, I cut my amber dry because I found
> out that the stuff just turns to fine dust, no melting even at high cutting
> speeds. My first bandsaw was a wet/dry rig and as it turned out, the extra
> cost for wet-cutting capability was not necessary.
> Since I don't have to use water cooling, there's no drying time before the
> blanks are ground to the desired shapes with tungsten-carbide drums (also
> dry). The savings in time and no messy slurry makes wearing respirators a
> minor inconvenience.
>
> I know it's long overdue, but I'll get around to posting some video clips
> on youtube on bandsaw work as well as acetone's effect (or lack thereof) on
> Borneo amber and Philippine copal.
>
> My thanks to both of you for the input!
>
> Andy
>
>
> On Sat, Jun 21, 2008 at 6:46 PM, mssilver <mssilver at optonline.net> wrote:
>
>>  Hi Andy,
>>
>>
>>
>> I worked in a machine shop many years ago and the master machinist used to
>> weld the blades back together and then regrind the tooth at the weld.  The
>> weld tends to be a bit more rigid than the blade itself so it only worked on
>> saws with a wide wheel or blade pully thing.  Too sharp of a bend and it
>> could possibly snap again.  If the tooth wasn;t ground perfectly then every
>> time that weld came around through the material you would know it and not
>> cut as cleanly.
>>
>>
>>
>> An expert would have to do it and may charge as much as a new blade.  That
>> was many years ago and there must be a machine out there somewhere where you
>> put the blade in and it welds it in seconds and your done.
>>
>>
>>
>> Good luck!
>>
>>
>>
>> Mitch
>>
>>
>>  ------------------------------
>>
>> *From:* amber-bounces at ambericawest.com [mailto:
>> amber-bounces at ambericawest.com] *On Behalf Of *Andy Ng
>> *Sent:* Saturday, June 21, 2008 3:57 AM
>> *To:* amber at ambericawest
>> *Subject:* Amber Listserv / Bandsaw question
>>
>>
>>
>> Hi guys,
>>
>> I'm running 3 bandsaws of various sizes to slice Borneo amber and soon
>> will add a 4th. The blades are of Swedish and German makes and the guide
>> bearings are all precision German ones. Cutting is always done dry, and
>> blade tension as well as guide bearing alignment is checked daily.
>>
>> While the blades do not snap very often and the cost is tolerable, I was
>> wondering if it is feasible to repair the broken ones? Or am I better off
>> just using a fresh blade when the old one gives way?
>>
>> Andy
>>
>
>
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