Pins and no needles

Posted by Robert Dodds on 19/06/2015 09:53:01:

Izaak,

As you are using a jewelers saw and seeing that they seem to take blades of almost any length why not try breakikng off the two offending ends of your coping blades so that they can be inserted into the clamps of the saw.
BTW I was amazed at how small real jewelers saw blades can be,.006 x .012 and passing through a No 80 hole. Coping saws are positively HUGE in comparison.

Bob D

Posted by Derek999 on 19/06/2015 08:54:06:

Hello Izack

Last year I purchased a tool used by jewelers to adjust expanding watch straps. It works just like a chain link extractor, and has a small drive pin which should extract those in coping saw blades.

Posted by Derek999 on 19/06/2015 08:54:06:

Hello Izack

Last year I purchased a tool used by jewelers to adjust expanding watch straps. It works just like a chain link extractor, and has a small drive pin which should extract those in coping saw blades.

It cost me less than £5 on ebay and although you might need to modify it slightly to cope with the difference in dimensions between a watch strap and the saw blade, it should easily cope with the task at hand. I cannot find it at present in order to photograph it, but a quick google for 'watch strap pin remover' produced plenty of results from £0.99 upwards.

I hope this helps you.

Best regards

Derek

Posted by Michael Gilligan on 19/06/2015 06:27:14:

.

Well done, Izack ... You have just demonstrated the "Engineering" process

The Craft of making it is one thing; but ingenuity is the Engineering.

... So much more satisfying than either "Painting by Numbers" or just Shopping.

MichaelG.

Posted by Hopper on 19/06/2015 02:11:14:

You might find it helps to grind the pin down flush with the blade before pushing it out with the above device.

This is standard technique for using chain breaker tools on modern heavy duty motorcycle chains. It might do away with the burr on your pins and make the pin easier to pop out that last little bit.

Posted by jason udall on 19/06/2015 16:38:52:
One point.
Critical to any technique is "do you want the pin or the blade? "
Since a technique to save both is generally an order of magnitude harder.

Posted by jason udall on 19/06/2015 16:35:54:
Ok.
Me?
I would get block of scrap wood.
Practically any wood.
Even aluminium.
Place pin upright on block. Using blade to hold.

Drive pin into block. Drive until pin is flush with with blade.
Punch remainder of way with center punch/ sharpened masonry nail
Repeat for as many ends as required.
Pin remains in block to be nailed flush if required.

Posted by mark costello 1 on 19/06/2015 14:39:33:

If You cannot grind it off, You might be able to use a spare small drill chuck on it if one is available.

Posted by Russell Eberhardt on 19/06/2015 11:32:30:

Quick solution: Don't remove the pin, just grind it off flush.

Russell.