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 Post subject: New old bandsaw!
PostPosted: April 19, 2019, 12:39 pm 
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Joined: January 31, 2012, 12:49 pm
Posts: 1711
Location: Louisville KY
I just inherited an old (1940's) Craftsman band saw, 12" cut, 1/2 hp motor, tilt table. I moved it in, got the blade (it came with 3 wood blades) to stay on, fired it up, and it runs great! Needs an "off" switch where I can get to it in case of blood spurting from my arm, and something done with the blade guide, but otherwise looks good.

It takes 80 inch blades. Where do y'all get your blades? What do you recommend for cutting 16 ga carbon steel? What do you recommend for fiberglass cuts?

My build continues to take up floor space faster than I can get things done on the car... sigh.

Tim

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Tim Wohlford
Louisville, KY
Hayes front, S10 +2 rear, Lalo body.
Girlfriend thinks I'm nuts for building this....


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 Post subject: Re: New old bandsaw!
PostPosted: April 19, 2019, 12:48 pm 
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Joined: August 31, 2015, 2:24 pm
Posts: 245
Location: Delaware
I've got a old 103 bandsaw that's been speed reduced for cutting metal. One of my most used tools for my build. You can get a nice ball bearing top guide off ebay but I haven't found anything for the lower guide. Carter does make a guide for the 12" hex and 14" round guide post units. Not sure if either can be adapted to fit. I get blades from mcmaster. Both Lenox and Starrett have blade guides available. You'll enjoy it, it's good useful tool for the shop!


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 Post subject: Re: New old bandsaw!
PostPosted: April 19, 2019, 12:53 pm 
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Joined: January 31, 2012, 12:49 pm
Posts: 1711
Location: Louisville KY
hfmaxi wrote:
I've got a old 103 bandsaw....


Craftsman 103.0103? Small world, that's what I have now. Seems robust enough to cut thru most anything... perhaps not in a production environment but should be good for me?

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Tim Wohlford
Louisville, KY
Hayes front, S10 +2 rear, Lalo body.
Girlfriend thinks I'm nuts for building this....


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 Post subject: Re: New old bandsaw!
PostPosted: April 19, 2019, 1:10 pm 
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Joined: August 31, 2015, 2:24 pm
Posts: 245
Location: Delaware
Same thing. You can see the speed reduction panel hanging off the bottom it's just the stock pulley on the motor to a 3/4" shaft 12in dia v belt pulley from HD mounted on a intermediate shaft: https://www.mcmaster.com/5913K62 https://www.mcmaster.com/6213K48 https://www.mcmaster.com/8632T14.
I then have another 12" pulley connected to the lower blade wheel. The reduction stage is hinged on the left side of the pict with a spring an 10lb weight on the right for belt tension.

If you need new bearings I believe these are the right part: https://www.mcmaster.com/5972K357

Attachment:
IMG_20180805_164502248.jpg
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 Post subject: Re: New old bandsaw!
PostPosted: April 19, 2019, 6:47 pm 
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Joined: January 31, 2012, 12:49 pm
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Location: Louisville KY
Taking notes... thanks!

I tried a quick cut on 20 ga steel as it is now, and it really cut nice. But obviously I need to slow the thing wayyyy down to make the blades live.

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Tim Wohlford
Louisville, KY
Hayes front, S10 +2 rear, Lalo body.
Girlfriend thinks I'm nuts for building this....


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 Post subject: Re: New old bandsaw!
PostPosted: April 19, 2019, 9:26 pm 
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Joined: August 31, 2015, 2:24 pm
Posts: 245
Location: Delaware
Here's a couple shot of the reduction stage. By my calcs I get 152, 228 and 305 fpm

Attachment:
bandsawbelt2.jpg
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Attachment:
bandsaw_belt1.jpg
bandsaw_belt1.jpg [ 444.19 KiB | Viewed 3345 times ]


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 Post subject: Re: New old bandsaw!
PostPosted: April 20, 2019, 4:57 am 
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Joined: December 22, 2006, 2:05 pm
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10/14 tpi works great on steel in my handheld bandsaw. The "bi-metal" seem to last much longer. The blade speed should be 200-380 sfpm.

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 Post subject: Re: New old bandsaw!
PostPosted: April 23, 2019, 7:20 am 
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Joined: February 28, 2009, 11:09 pm
Posts: 1310
Location: Connersville, Indiana
I get my blades from bandsawbladesdirect. I do a lot of fabrication, so like narrow blades for their ability to cut tight radii. I get the Lenox Diemaster blades in 1/4" width. As to tooth count, there is a rule of thumb of keeping at least 3 teeth in the material. It works fine.

A decent horizontal bandsaw needs to be in every shop. They have a way of turning daunting jobs into child's play. I cutoff 2" rounds with 1/4" blades and 4 teeth/in, no problem. I usually have to grab the rounds with a "C" clamp to keep them from rotating.

Bill


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