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Scalloping with planer
Posted: Mon Jan 25, 2010 4:20 pm
by bdorf
Howdy All,
When planing I get light scalloping. What can I do to eliminate this? Thanks!
Posted: Mon Jan 25, 2010 5:27 pm
by SDSSmith
bdorf wrote:Howdy All,
When planing I get light scalloping. What can I do to eliminate this? Thanks!
Here is a link to the thickness planing section of PTWFE:
http://www.shopsmith.com/academy/planing/index.htm
If the scalloping is at the ends of the board, you might look in the reference for snipe or sniping.
Posted: Mon Jan 25, 2010 5:38 pm
by pennview
You might want to check that all of the knives are set to the same depth.
Art
Posted: Mon Jan 25, 2010 5:42 pm
by 8iowa
Art is correct. a series of mill marks/scallops is an indication that the knives are not set to the same level. This also leads to increased vibration.
This may be an opportunity to sharpen them as well. Do you have the conical disk and sharpening jig?
Posted: Mon Jan 25, 2010 6:19 pm
by shipwright
You will get more planer marks at too slow a cutterhead speed or too fast a feed speed. Cuttermarks are a result of the head speed / feed speed combination. Sniping at the ends is a function of table roller heights. What speeds you use and what roller heights you use are related to what sort of job you are doing. ie: speed vs. quality etc.
Paul M