Improper bandsaw use - PSA - Page 2 - Router Forums
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post #11 of 30 (permalink) Old 05-22-2017, 09:43 AM
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David I also want to thank you for sharing this excellent video.

I've been working with power tools for over 50 years and sometimes I didn't take the time to make sure what I was about to do was safe, I just had that "it is only one cut attitude", which is making time for disaster to happen. I had more than one close call before I finally decided it was time to stop and think before I turned on a power tool. I now try to live by the rule that "Your BRAIN Is The Most Important Power Tool In Your Shop. Turn It On Before You Turn On Any Other Power Tool."

This doesn't happen very often on a bandsaw but this shows that proper preparation of the stock and holding devices on jigs being used are important to safety. Also to be noted with each cut the stock changes and should be checked to make sure it is still safe to run through the saw.

Accidents with power tools happen so quickly there is no time to react. Like Herb said "That round went from zero to 60 in less than a second."

Glad you were not hurt and hope this helps others stop and think before they turn on a power tool "IS THIS SAFE?"
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post #12 of 30 (permalink) Old 05-22-2017, 09:46 AM
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Glad that you didn't hurt yourself, David. I'm a new bandsaw owner, so I was watching a few videos on them. In one the guy was showing what can happen cutting a piece of plastic pipe. You had a similar problem. The blade pushes your work down, so when the material is square everything is quite safe. When you're cutting a round part, especially near the beginning or end of the cut, the downward force wants to spin your part. I think a V shaped sled might be better, or at least a block under the front of your work too, but I think I'd rather stay further away from the blade anyway.
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post #13 of 30 (permalink) Old 05-22-2017, 09:48 AM
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See my signature...
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  • Accident free since 10/27/12 at 3:58 pm.
  • Cursing free since 10/27/12 at 3:59 pm.
  • ...it happened in Everett, WA USA
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post #14 of 30 (permalink) Old 05-22-2017, 10:24 AM
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David, I was wondering if the type of blade was not suited for the operation? I had a similar incident years ago on the table saw with crosscutting a flat board with a large tooth ripping blade. I had ripped a board using one of those big toothed hook shaped HSS (before Carbide) 10" blades and had to trim the end off, so used the miter guage and it grabbed that piece with a bang and threw it back at me in pieces.
Maybe a finer tooth BS blade would be safer, but slower cutting. But clamping down the work is necessary too.

I used a chainsaw one time to rip some boards and had to get a special chain for it that was sharpened differently and fewer teeth, filed srraight accross instead of at an angle.
Just some thoughts.
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post #15 of 30 (permalink) Old 05-22-2017, 10:54 AM Thread Starter
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Originally Posted by Herb Stoops View Post
David, I was wondering if the type of blade was not suited for the operation? I had a similar incident years ago on the table saw with crosscutting a flat board with a large tooth ripping blade. I had ripped a board using one of those big toothed hook shaped HSS (before Carbide) 10" blades and had to trim the end off, so used the miter guage and it grabbed that piece with a bang and threw it back at me in pieces.
Maybe a finer tooth BS blade would be safer, but slower cutting. But clamping down the work is necessary too.

I used a chainsaw one time to rip some boards and had to get a special chain for it that was sharpened differently and fewer teeth, filed srraight accross instead of at an angle.
Just some thoughts.
Herb
I think the blade is fine for this and it cut with no problems at all, literally like a hot knife through butter. I could have fed it much faster but I was making sure the gullets had time to clear the chips.

But securing the piece and placing something under the leading edge is essential. I've cut other logs before but they weren't quite so large in diameter and were longer, much easier to hold and control. At some point I may cut this piece again and video the proper way to do it.

David
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post #16 of 30 (permalink) Old 05-22-2017, 12:06 PM
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At some point I may cut this piece again and video the proper way to do it.

David
I'm surprised you won't have WWCCPTSD from the last incident . I know I have a hard time getting back into the groove of things once I've had a close call

(Wood Working Close Call Post Traumatic Stress Disorder )
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post #17 of 30 (permalink) Old 05-22-2017, 12:16 PM
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I'm surprised you won't have WWCCPTSD from the last incident . I know I have a hard time getting back into the groove of things once I've had a close call

(Wood Working Close Call Post Traumatic Stress Disorder )
I've had a few of those myself. Mainly from using inferior equipment. It makes you a little gun shy for a while.
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post #18 of 30 (permalink) Old 05-22-2017, 01:15 PM
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OUTSTANDING video. I understand the pain that went into making it, but this is truly a worthy PSA. Thank you.
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post #19 of 30 (permalink) Old 05-22-2017, 01:23 PM Thread Starter
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I'm surprised you won't have WWCCPTSD from the last incident . I know I have a hard time getting back into the groove of things once I've had a close call

(Wood Working Close Call Post Traumatic Stress Disorder )
I had a replacement blade and have been setting it up since yesterday afternoon. There are a lot of steps to setting one of these up correctly such that everything is square for a 14"+ wide cut. I don't cut woods that wide often but I need my setup to handle that with no issues.

This morning I've been on the saw and have resawn some Honduras Mahogany, Maple, and Alder (cutting slices at 0.100"). The Mahogany was a 10" wide board and I need to know that my setup can cut to within a few thousandths corner to corner. Right now I have it close but I'm getting about 0.006" variance corner to corner and that's more than I want - prefer no more than 0.004". But I have CNC work to do so I'll have to pick this up later to finish the setup; I may have to settle for 0.006" for a while.

David

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Last edited by difalkner; 05-22-2017 at 01:41 PM.
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post #20 of 30 (permalink) Old 05-22-2017, 03:01 PM
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David, when you make a PSA, it definitely gets the viewer's attention and gets the point across. Glad you were not hurt. Whether a machine is turning at 200 RPM or 25,000 RPM, it is always unforgiving and things happen very fast. It seems the more experienced we get, sometimes it is easy to overlook something, particularly when making just one more repetitive cut. A good reminder you can never be too careful when making a cut.
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