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Posted to alt.machines.cnc,rec.crafts.metalworking
Gary H. Lucas
 
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Default Clearing chips off a band saw blade...


"Proctologically Violated©®" wrote in message
...
Awl--

A'ight, I've sorta recovered from burnin up the goddamm powerfeed on
m'Bridgeport, 'n' ahm sure gonna be more careful powering up my bad-assed
Kalamazoo 9x16 hydraulic saw, which is actually the more important machine
right now.

Speaking of which....

The 1" saw blade *really* cuts, bruhs, w/ boucou chip volume. Kalamazoo
actually provides--and strongly recommends--a blade chip cleaner, which is
basically a rotating wire wheel just after the cut/before the drive wheel,
causing the chips to fall down in a mesh basket, rather than all over the
quite substantial coolant tank/pump, or packing into the drive wheel
bay/screwing up the blade.

This is an "ok" method, altho the brush wheel tends to wear, fall off, get
lost, bent, etc.

Note that the Kal has *two* low-pressure coolant jets, integrated into
each set of blade guide arms/bearings, w/ shutoffs--really neat.
One jet hits the blade just prior to the cut, and the other jet sprays the
blade "after the cutting fact"!
Was always puzzled by this second spray--it cain't be to dislodge chips,
cuz it's not really aimed right, and it's pretty weak--mini-giant,
donchaknow. Purpose??

So a cupla idears come to mind, which you all might find useful (or even
already have) in your own applications.:

A separate more powerful mini-giant, dedicated solely to chip dislodging
(ie, focused at one point);
A different type pump altogether, low volume/high pressure--don't know
much about these. Would an old hydraulic pump mebbe work?? I got two!
The spray really need only be a cupla sq. mm, for effective chip
dislodging.
Tapping into my fadal pump, and blast the **** out of those chips,
bruhs... But tank logistics become pretty messy here, not to mention
literal high-volume coolant mess...

OR....drum roll
Compressed air???? mebbe w/ a little mini-giant coolant, and blow the wet
chips straight down! A little noisey, mebbe, but likely really effective.

Comments? Idears?
Would also like to make a pan for my $199 horzl bandsaw special, and put a
mini-giant on it as well. Inyone done this?

TIA.
----------------------------
Mr. P.V.'d
formerly Droll Troll

PV,

Are you using a vari-pitch blade? They really work well, virtually
eliminate blade chatter and allows the same blade to cut a wider variety of
materials.

Gary H. Lucas