WWA Info Exchange

For Woodworkers By Woodworkers
It is currently Thu Nov 23, 2017 7:49 am

All times are UTC - 5 hours




Post new topic Reply to topic  [ 9 posts ] 
Author Message
 Post subject: They say,…
PostPosted: Fri Oct 20, 2017 6:33 pm 
Offline
Veteran
User avatar

Joined: Mon Apr 11, 2005 12:01 am
Posts: 4737
Location: Seattle, WA, USA
…that when properly used, the bandsaw is the safest machine in the wood shop. Mostly, this is because the blade is almost completely encased in steel. Only as much blade is exposed as needed for cutting the stock on the table. But I wonder how many heart attacks they have caused?

When the blade on a bandsaw fails, it breaks under tension, catastrophically. It really sounds like a rifle shot, right in front of you. Oddly enough, it’s the narrower blades that startle me the most. The larger ones tend to give some notice that things aren’t right, they start tick, tick, ticking as they propagate a crack in anticipation of failure. The narrow ones, BANG! without warning. I swear my heart needs to restart itself after each time one of those things breaks.

I think it may be time to pour a drink and call it a day.

Cheers,
Tom

_________________
"There is no path to peace, peace is the path."
Mohandas K. Ghandi
Image


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Fri Oct 20, 2017 7:34 pm 
Offline
Veteran

Joined: Sun Feb 21, 1999 1:01 am
Posts: 2423
Location: Rochester MN USA
TMS: The spirits, gremlins, genies, djinns, goblins that inhabit our mind/life seem always to know when to restore your attention to them, they are implacable associates in the journey.

_________________
Everything was new once.
newtooth 311
Rochester, MN


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Sat Oct 21, 2017 2:39 am 
Offline
Veteran

Joined: Tue Dec 15, 2015 1:08 am
Posts: 91
tms wrote:
…that when properly used, the bandsaw is the safest machine in the wood shop. Mostly, this is because the blade is almost completely encased in steel. Only as much blade is exposed as needed for cutting the stock on the table. But I wonder how many heart attacks they have caused?

When the blade on a bandsaw fails, it breaks under tension, catastrophically. It really sounds like a rifle shot, right in front of you. Oddly enough, it’s the narrower blades that startle me the most. The larger ones tend to give some notice that things aren’t right, they start tick, tick, ticking as they propagate a crack in anticipation of failure. The narrow ones, BANG! without warning. I swear my heart needs to restart itself after each time one of those things breaks.

I think it may be time to pour a drink and call it a day.

Cheers,
Tom


heheheh, cheers Tom! Thanks for the story, and I'm glad you're alright!

I can't even remember the last time I used a bandsaw, but I remember hearing about the blade breaking back in woodshop days in high school.. but Mr G didn't go into the details of the different size blades getting ready to break... "tick tick tick" as opposed to "bang"... Thanks for sharing the story :thumbup: !

The only real detail I remember about using a bandsaw, is that sometimes you have to set the rip fence "crooked" to allow for the flex in the blade.... start off making the cut freehand, and then set the fence according to how it wants to feed, if that makes any sense...


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Sat Oct 21, 2017 11:49 am 
Offline
Veteran
User avatar

Joined: Sat Jan 14, 2006 10:44 am
Posts: 3843
Location: Skagit Co WA
There are ways to really really hurt yourself on a band saw. Nothing like a blade grabbing a piece of improperly secured timber. Crosscutting a round timber can lead to a real interesting conclusion.

Glad you're OK, Tom.

_________________
Nullum Gratuitum Prandium

Cheers - Dennis


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Sun Oct 22, 2017 7:23 pm 
Offline
Veteran

Joined: Thu Sep 20, 2007 4:55 pm
Posts: 2139
Location: ridley park, PA
Good to hear you came out unhurt. One time while using a 20" old school Delta Band Saw the thick rubber tire exploded.............That rocked my socks!

Ron

_________________
"To all those who work come moments of beauty unseen by the rest of the world." Norman Maclean


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Mon Oct 23, 2017 9:13 am 
Offline
Veteran
User avatar

Joined: Thu May 29, 2003 12:01 am
Posts: 3468
Location: Sacramento, CA
Quote:
When the blade on a bandsaw fails, it breaks under tension, catastrophically.


Oh man, isn't that the truth!

Had one break at the weld this summer ... caught the lower wheel and wrapped itself all around it scratching the inside of the lower cabinet before I could gather my senses and shut off the machine. My heart is racing a bit just thinking about it again. ;)

_________________
~Dan.


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Mon Oct 23, 2017 4:41 pm 
Offline
Veteran

Joined: Thu Dec 31, 2009 2:48 pm
Posts: 714
Location: Cypress, TX
This is interesting.
I have always worried about a blade breaking but so far, have never experienced it.
I have a Craftsman 14" saw and use mostly 1/2" X 93 1/2" blades on heavy wood.
Lots of 4" thick cuts.

No blade breaks in 19 years I have had the saw.

It is certainly not anything I have done. I put on a blade and tighten it until the tensioner won't turn any tighter.

I use it a whole lot!!!
Zulu

_________________
Zulu's website
http://www.jmelledge.com


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Mon Oct 23, 2017 6:40 pm 
Offline
Veteran
User avatar

Joined: Fri Jan 02, 2004 1:01 am
Posts: 11212
Location: Hamilton, MS
Feed, blade speed, lube, and proper tooth. Many folks tend to feed the stock too fast with the wrong blade, which will often cause a kink, and eventually breakage. I've popped a couple 1/4" blades.

_________________
Gene


Top
 Profile  
 
 Post subject: Re: They say,…
PostPosted: Mon Oct 23, 2017 8:46 pm 
Offline
Veteran
User avatar

Joined: Mon Apr 11, 2005 12:01 am
Posts: 4737
Location: Seattle, WA, USA
Hey Guys,

While we're still on the subject, it was a 5/32" blade that I have been using for too long. It had grown dull from cutting so many of last year's Christmas reindeer. I pushed it as far as it would go, and then some.

Most of my blades are carbide toothed, so breakage due to metal fatigue of the back is my most common failure mode. This narrow blade was not carbide, but I'm one of those guys that likes to get the last bit out of the toothpaste tube as well. So I squeezed everything I could out of that blade, then got out the silver solder and repaired it. I probably won't use it again, but I like to have a back up, even if it's worn out, in case I need to finish up a project after a broken blade.

Cheers,
Tom

_________________
"There is no path to peace, peace is the path."
Mohandas K. Ghandi
Image


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group