Thread: Riving Knife rigidity question

Originally Posted by Hanilein

Thanks, Bobl.

Well, the long slots are not open at the end. To remove or change the riving knife two M8 screws must be removed completely.
Do you have a link to that post?

I had a quick look but cannot find it, perhaps other might remember where it was.

This is the factory riving knife on my Felder BF6-31. Slotted all the way, but fastened securely. I am fairly relaxed about this since I am never aligned with the blade, but I take your point. Since Felder has to comply with rigorous EU safety standards I will check to see if they still do this.

Originally Posted by Greg Q

This is the factory riving knife on my Felder BF6-31. Slotted all the way, but fastened securely. I am fairly relaxed about this since I am never aligned with the blade, but I take your point. Since Felder has to comply with rigorous EU safety standards I will check to see if they still do this.

The locking mechanism (large double hole steel washer/plate) and shorter slots on the Welder looks pretty well impossible to defeat. I was referring to long slots and just a screw head holding a riving knife on. An extra large washer may be all that would be required to ensure safety.

Here's the link to the incident I was referring to
speared with his riving knife

Originally Posted by BobL

The locking mechanism (large double hole steel washer/plate) and shorter slots on the Welder looks pretty well impossible to defeat. I was referring to long slots and just a screw head holding a riving knife on. An extra large washer may be all that would be required to ensure safety.

Here's the link to the incident I was referring to
speared with his riving knife

Thanks a lot, Bobl - a scary video, and not just because of the accident. The saw also does not look really trustworthy to me.
Anyways, you certainly gave me something to think about - I will add a rectangular plate on the side where the screws are, and replace the screws with high-tensile screws.