Cant hardly get my old 15″ Grizzley planer to pull a board thru without me pushing and pulling with all my might.Its ruff-cut oak which i know sometimes when its cupped real bad wont give enuf surface area for infeed roller to grab..but it still wont self feed when uve skimmed off both sides.The infeed rollers isnt gummed up and the chain drive is revolving.I know the blades are dull but i want to skim the ruff and dirt off a batch before retooling.Does blade sharpness really affect feed rate that much.?Ive increase infeed roller pressure 3/4 turn but with no noticeable effect and dont want to mess with the roller pressure unless thats the real cure. ????
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Replies
Does blade sharpness really affect feed rate that much.?
yes...
So the tips of the knives also act as " drive units"? .So dulls knives skid on the surface and dont pull as hard?
dull knives bounce on the wood, instead of slicing...they work against the feed direction...oak is hard - -
"there's enough for everyone"
After you get sharp knives in your machine you might also check the bed rollers. I have an old model of the Grizzly 15" planer and I played with the bed rollers for a while before I came to the medium setting of .004 above the table.
If you consistently plane rough lumber you may want to set your bed rollers from .004 to .008" above the table. If you have them set too low the roughness in the lumber will drag on the table and give you problems with feed.
Regards,
Mack
"WISH IN ONE HAND, #### IN THE OTHER AND SEE WHICH FILLS UP FIRST"
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