Slider alignment question
开云体育Do you get burning on the off-cut side (to the right of the blade) if the material is clamped down to the slider? ?What blade are you using and do you have a rivving knife installed and properly adjusted?David Best - via mobile phone? On Apr 8, 2025, at 11:09?AM, John Hinman via groups.io <jhinman1911@...> wrote:
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开云体育It could be that the suction of your overhead guard is pulling the off-cut upward and into the blade. ?Or it could be that the throat plate supplied by Felder does not have tight tolerance to the blade, and the off-cut being so small starts to lean over into the blade. ?Both of these situations can cause a small off-cut to get caught by the back of the blade and thrown forward. ?I had this problem on my Kappa 400 and it was all related to the throat plate, so I designed a replacement ZCI throat plate, installed that, and the problem stopped. ?The OEM throat plate on these machines is typically angled on the right to accommodate a tilted saw blade, and that angled section would encourage small off-cuts to tilt over and into the blade causing a kickback. ?You can see my ZCI effort?. ?I believe someone else here on FOG makes a 3D printed version of something very similar to my design for the Kappa 450.If you want to further check toe-out on your slider, I describe two methods in my YouTube video - the link below takes you directly to the section on toe-out: Another test would be as follows.
David Best DBestWorkshop@... https://www.flickr.com/photos/davidpbest/collections/ https://www.youtube.com/@David_Best
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开云体育In addition to David’s thorough response, I’m just confirming that when you perform through cuts you have your saw blade raised enough so that only a minimum of teeth is engaged in the material being cut? David mentioned a blade raised 40mm for
a 3/4” plywood test cut. That’s about right. I run my blades at 40-50mm permanently for 20-25mm material and even higher for thicker stock. I find small offcuts engage with the teeth and “grab” if the blade is adjusted too low.
Warm regards,
Lucky
Dr David Luckensmeyer?
Designer & Maker
@luckensmeyer
M: 0413 013 115
From: [email protected] <[email protected]> on behalf of David P. Best via groups.io <dbestworkshop@...>
Sent: Wednesday, April 9, 2025 6:30:14 AM To: [email protected] <[email protected]> Subject: Re: [FOG] Slider alignment question ?
It could be that the suction of your overhead guard is pulling the off-cut upward and into the blade. ?Or it could be that the throat plate supplied by Felder does not have tight tolerance to the blade, and the off-cut
being so small starts to lean over into the blade. ?Both of these situations can cause a small off-cut to get caught by the back of the blade and thrown forward. ?I had this problem on my Kappa 400 and it was all related to the throat plate, so I designed
a replacement ZCI throat plate, installed that, and the problem stopped. ?The OEM throat plate on these machines is typically angled on the right to accommodate a tilted saw blade, and that angled section would encourage small off-cuts to tilt over and into
the blade causing a kickback. ?You can see my ZCI effort?. ?I believe someone else here on FOG makes a 3D printed version of something very similar to my design
for the Kappa 450.
If you want to further check toe-out on your slider, I describe two methods in my YouTube video - the link below takes you directly to the section on toe-out:
Another test would be as follows.
David Best
DBestWorkshop@... https://www.flickr.com/photos/davidpbest/collections/ https://www.youtube.com/@David_Best
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David P. Best
David Luckensmeyer