[TheForge] brainstorming revisited
Mike McKim
[email protected]
Sat Jan 11 19:19:00 2003
This site has some great photographs.
http://www.americanartifacts.com/smma/advert/ay174.htm
Mike McKim
> Somewhere in my magazine pile I have an article by Mr. R. Underhill on how
> to make a treadle lathe with a scroll saw attachement. Now if only I can
> find it.....
>
> Paul McComb
> Fat Raccoon Forge
> London, Ontario
> [email protected]
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of R.C.Mundt
> Sent: Friday, January 10, 2003 9:50 AM
> To: [email protected]
> Subject: Re: [TheForge] brainstorming revisited
>
>
> On the woodwrights workshop a couple years ago on PBS Roy Underhill used a
> treadle powered scroll saw, might find a picture of one in one of his
books.
> Long before my time my uncle and father built a scroll saw from an old
> sewing machine, don't know a thing about it just remember seeing it up in
> the rafters of my uncle's garage 40 + years ago.
> Randy Mundt
> ----- Original Message -----
> From: "Bruce Freeman" <[email protected]>
> To: <[email protected]>
> Sent: Friday, January 10, 2003 6:55 AM
> Subject: Re: [TheForge] brainstorming revisited
>
>
> Terry,
>
> Are you aware that treadle scroll saws for WOOD were actually manufactured
> and marketed? They might be listed in that reprinted 1800's Sears &
Robuck
> catalog. There's one in the carpenter's shop at historic Allaire Village,
> NJ.
>
> That said, wouldn't an electric scroll saw equipped with a jewelry-saw
> blade, do nicely? It would be like sawing with a jeweler's saw, but
without
> the manual ups-and-downs.
>
> Bruce
> NJ
>
> >>> [email protected] 01/05/03 07:45PM >>>
> hello;
>
> i have been searching the internet and exchanging e-mails with several
> hobbyist jewelers. the idea of a treadle scroll saw has come up several
> times in the past. several ideas have been tried and the one which keeps
> coming up is modifing a treadle sewing machine for use as a treadle
> scroll saw. actual any variable speed sewing machine may work but the
> older the better. the newer computer controlled sewing machines are
> difficult to modify. a treadle sewing machine is preferred since when
> not in use it folds away.
>
> another approach that is far simpler yet does work. this approach uses
> two pulleys, natural fibre rope, 1/4" cold rolled round, lead weights
> and a wood or metal foot treadle. the type of jeweler saw used will
> dictate the available cutting depth.
>
> poor ascii picture:
>
> pulley -> o-------o <- pulley
> | |
> rope -> | | <- rope
> | |
> | /----- <- jeweler saw frame
> | | x
> | | x <- jeweler saw blade
> | | x
> ============================ <- table
> | | x
> | | x
> | \-----
> | | |
> www | |
> www | | <- jeweler saw handle
> www | |
> lead -> www \ /
> weights www |
> www |
> www | <- 1/4 cold rolled steel rod
> |
> |
> |
> eye formed in -> O=========== <- foot treadle (wood or metal)
> 1/4" rod with 1/4" rod O <- 1/8 pipe with 1/4" cold rolled steel
> passing through it. rod passing through it. held to foot
> treadle by conduit clamps.
>
> the jeweler saw frame passes through the table top via cut in slots.
> a modification to the table top would be to have a removable circular
> cut out that would only easy access to the jeweler saw.
>
>
>
> pressing on the foot treadle pulls the saw down and the weights up.
> release the foot treadle the weights pulls the saw up and the foot
> treadle up. jeweler saw blade stays near to 90 degrees and speed is
> controlled by the user's foot.
>
>
> a variant of the above replaces the lead weights with a spring.
>
> this approach has a small footprint. 16inches across and 20 inches
> deep. frame is either pvc pipe, metal, or wood.
>
> --
> Terry L. Ridder ><>
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