turned off the saw and lifted the board away. The splitter came with it:
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'm sure it would've kicked back without the splitter. One thing I realized was that I had no idea it was happening (other than it started to take more pressure to push the board through), because I was watching the leading edge of the cut not the trailing edge.
Maybe I can finish the cut by two opposing less than 1/2 thickness cuts and split the last bit apart by hand. Would that work? I don't think I'll be ripping spruce 2x4s their full thickness again any time soon.
With construction-grade wood, you takes your chances.
To finish the cut, I'd consider slipping some wedges into the existing kerf to keep the wood apart and from pinching the blade, then settling the board over the blade, testing, and then starting the saw well back of the uncut porton, and slowly advancing the board through.
After a while this design splitter breaks. I use it also but have upgraded. Microjig also sells this style splitter with a steel core covered in translucent plastic. These don't break, as easily. Oddly I have only seen the steel ones at woodworking shows.
Cute. Actually got me thinking about that Sawstop contractor saw version. Checked the website. Still says Available Spring 2008. And it says Status: Production PLANNING in progress.
I rip 2 x 4's a fair amount. Just watch the cut behind the blade, and if it looks to be closing, stop the saw, and stick a wedge in the cut and finish the cut. Sounds like a wedge works better than a splitter for this cut.
I don't do a lot of green lumber, but my preference is to rip them a bit thick on the bandsaw and then take them to size on the TS..
Yep.. I use mostly "almost dried" pine here in Baja.. hard to get anything else except hardwoods at a hard price.. Seems like the best way here is to buy 1x12's or wider in 10' foot lengths and make my own lumber...
When I need to rip lumber like that, I always use the bandsaw. If I need a smooth surface, I'll dress it on the jointer or the planer afterward.
As ZzYzx said, with construction lumber, you take your chances: you're dealing with species that are more prone to doing this than most hardwoods are to begin with; when you consider the additional factors of incomplete or improper drying, and storage in conditions that don't exactly promote dimensional stability, it adds up to more risk than I'm comfortable with.
Glad you weren't hurt. That new splitter may well have saved you from a significant injury.
Reaction wood. I tangled with a piece of that once.
I was ripping a 1X8 pine board that started to close up and pinch the blade. Like a dummy, I stuck a wedge in the kerf and tried to continue the cut. After about another foot, there was a loud CRACK! and the board split.
Fortunately for me, the grain was fairly straight and it split roughly along the line of the kerf or it might have kicked back.
Now I don't use much pine...preferring poplar instead for most projects. And if a board starts to pinch the blade I generally discard it. The cost of the wood would be MORE than offset by the cost of having my face surgically repaired.
Pine is the main source of wood in my area, so I had to use it for the display cases in the shop and for bookcases and such...
Like you, I've learned to feel the slight resistance when the kerf is closing... been there So many times in the last year.. I just turn the saw off, pick up the board and finish the cut with the band saw...
Honestly, I waffled for a very long time before deciding to buy one of these for just that reason. However I stopped to think that it was probably better than nothing in the meantime, and in spite of the cost (it seems over priced), I went ahead. I'd say a lot of the cost is worth the thought that went into its design, which you see when you read the instructions for installing it.
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