Replies

1. 
   highfigh | Apr 08, 2006 06:34pm | #1

   Why do you want to change the angle? Are you working with difficult grained wood?

   "I cut this piece four times and it's still too short."
1. 
   jeffreysherow | Apr 08, 2006 06:46pm | #2

   I don't, I nicked the knives, need to repair and wanted to get the angle right.

1. 
   highfigh | Apr 08, 2006 06:55pm | #3

   I think you're going to have to use an angle guage or protractor for this. I'm not sure they all use the same angle. You could also use a bevel guage and a very flat surface for this. Otherwise, good lighting and a keen eye will be needed. What are you using as a guide?
   "I cut this piece four times and it's still too short."

2. 
   forestgirl | Apr 08, 2006 06:56pm | #4

   Is there a problem with reading the angle from the knife itself?  Sorry if I (we) are being obtuse, but your reference is in the knife itself.  Take a look at the Veritas Jointer Blade honing guide, for example.  You simply turn the "elevating screw" until the knife's bevel lies flat on the sandpaper, and off you go.

    forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 

1. 
   jeffreysherow | Apr 08, 2006 07:00pm | #5

   In an early attempt to sharpen I believe I have changed the angle to an undesirable/incorrect one and being an engineer, I can't stand it being wrong :-)

1. 
   forestgirl | Apr 08, 2006 07:26pm | #7

   Ahhhhh, OK, now I get it.  Looks like you got your answer up above.forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 

2. 
   BruceS | Apr 08, 2006 07:03pm | #6

   Thanks to our sponsor,  I dug out my copy of Taunton's Complete Illustrated Guide to sharpening, By Thomas Lie-Nielsen.  He states that normal factory bevel is in the  35-40 degree range.  Or if you change the bevel to 30 deg.  which he says is common, also stateing  you may want to add  a 10 to 20 deg back bevel which is 1/32 to 1/16 wide.Work Safe,  Count to 10 when your done for the day !!

   Bruce S.  Counter Sales, Tech Rep.  http://WWW.EAGLEAMERICA.COM

    

    

2. 
   mike4244 | Apr 08, 2006 08:37pm | #8

   40° is the norm.

   mike

3. 
   steven_woodward | Oct 29, 2019 08:52pm | #9

   My Makita 2020 jointer came with new blades sharpened to 40 degrees. My Delta RC-33 thickness planner came with new blades sharpened to 35 degrees but replacement blades by Freud came sharpened to 40 degrees and they work fine. As I now sharpen my own blades with a Makita 98202, I rough sharpen the blades to slightly less that 40 degrees and then sharpen just the edge at 40 degrees. This makes it easier to get a sharp straight edge with an effective cutting angle of 40 degrees.

4. 
   jql | Oct 29, 2019 10:29pm | #10

   I use William Ng's (http://www.wnwoodworkingschool.com) planer blade sharpening jig, which he describes and I built from his video.

   Fast and Easy Way to Sharpen Jointer and Planer Knives
   https://youtu.be/pUoEPgcqUFc