开云体育

On Feb 27, 2020, at 9:12 PM, Mark Kessler <mkessler10@...> wrote:

No the Riving knife is not the only evidence, it's the only way I think I
could describe it to others online, all I can say is that I am very
surprised at the amount of vibration, it has more than my 30 year old Inca
saw which had a bad bearing, trunnion cracked and welded twice (not that
that would mean anything except the saw was abused) and multiple users
(again the saw was beat).

-----Original Message-----
From: [email protected] <[email protected]> On Behalf Of
Jonathan Smith
Sent: Friday, February 28, 2020 12:05 AM
To: [email protected]; mkessler10@...
Subject: Re: [FOG] Saw vibration

Is the riving knife the only evidence of vibration? If so, it may just be a
harmonic and can be stopped by changing its mounting position. Try to raise
or lower it or move the mount toward or away from the blade.

Normally spinning machines will hit harmonic speeds, sometimes multiples, as
they coast to a stop. Unfortunately, Felders with vfd brakes stop too fast
to see this. My 3400 rpm bench grinder jumps around at about 1000 rmp as it
coasts down but runs smoothly before and after. Side story, I sold a 400hp,
1200 rpm hammer hog to a chip mill in Port Angeles, WA. This is a big
garbage disposal machine for wood waste like bark and other log yard trash.
It ran smooth as glass except there was a catwalk handrail about 30' away on
the same support structure that vibrated like crazy to the point it cracked
the welds. They fixed the welds and added a 10 lb weight. Changing the
mass solve the problem.

Jon S

-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Mark Kessler
Sent: Thursday, February 27, 2020 8:35 PM
To: Felder Owner Group
Subject: [FOG] Saw vibration

Does anyone else experience this amount of vibration when their saw is
running? This is a 2019 k700. Please post video of same if possible. Thanks!



Regards, Mark





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