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Help an old man get a craftsman / King Seeley scroll saw running

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Forum topic by 1yeldud1 posted 599 days ago 1403 views 0 times favorited 5 replies Add to Favorites Watch
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1yeldud1

289 posts in 1666 days


599 days ago

I have a old (1950 or so model) King Seeley / Craftsman scroll saw that a co-worker gave me. I spent most of the winter rebuilding the internal workings and assembling replacement parts to make this useable. I have visions of my grand kids learning wood working by “tinkering” with this saw in the next few years. I now have it under power and am having some problems. First off this is the first attempt of ever running a scroll saw. I installed a new motor (1750 rpm) with a 2 1/2 inch pulley and a 6 inch pulley on the saw. I have tried to use very small scroll saw blades with little success. Both efforts resulted in breaking of the blades when trying to cut 3/8 inch and smaller pine boards using light cuts/pressure. The upper head employees a compression spring to make the upper head return to its position. My brother thinks that the spring that I am using is too “soft” and needs to be replaced. Any Ideas as to what is needed to make this useable – is my speeds (pulleys) correct – what style blades should I start with – any idea as to the compression spring (too soft) – thanks for any help that you could give.


5 replies so far

View MedicKen's profile

MedicKen

1599 posts in 2086 days


#1 posted 599 days ago

A real great souce of info can be found at vintagemachinery.com and owwm.org. Do you have a model number? It will help in finding a manual and parts diagram

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

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1yeldud1

289 posts in 1666 days


#2 posted 599 days ago

Thanks for the reply – everything I can find lends me to believe it is a model “103.0404” – I question the pulley sizes and the spring pressure. I am needing someone to suggest what type of scroll saw blades might be successful with this style saw – I have it setup to use non-pin style blades. Thanks !

View johnstoneb's profile

johnstoneb

642 posts in 797 days


#3 posted 599 days ago

I had an old powerkraft that used a spring return. I ended up after experimenting on pulley sizes with what you have, that should give you a speed of about 725 spm which is a fairly good speed. I had the same problem with blades breaking. What I found you have to put the blade in correctly. Put the blade in the bottom holder first and tighten it up. Then turn the blade to the top of its stroke, with one hand push and hold the top blade holder down slightly and tighten the blade holder up on the blade.
This stops the top blade holder from hitting the top of the saw before the blade is at the top of its travel and flexing the blade causing it to break. If you push the top holder down too far it will bottom out at the bottom of the stroke and the blade will pull out or break. You have to find a happy medium.
I used my powerkraft for a couple of years off and on with good results. When I started making wooden geared clocks it worked but I was never happy with it. And finally replaced it with a Skil variable speed scroll saw that does a much better job. If I was getting into very intricate scroll work I would probably replace the Skil with something else.

-- Bruce, Boise, ID

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MedicKen

1599 posts in 2086 days


#4 posted 598 days ago

Here are a couple of listings from OWWM

http://vintagemachinery.org/pubs/detail.aspx?id=2877

http://vintagemachinery.org/pubs/detail.aspx?id=797

-- My job is to give my kids things to discuss with their therapist....medic20447@gmail.com

View Don W's profile

Don W

14821 posts in 1192 days


#5 posted 598 days ago

Read threw this it may be of some help. http://lumberjocks.com/topics/40163

-- Master hand plane hoarder. - http://timetestedtools.com

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