SS Planer blade question

[Bruce]

I would imagine that's true. But then you could not use the sharpening jig to sharpen them. The table needs to be flat for the operation to be safe, in my opinion.

[charlese]

Just need to tilt the table 2 1/2 degrees to the left. (toward the conical disk)

Edit:
Oh, My Goodness!! This is completely wrong!! Don't do it!

Don't know what I was drinking (or smoking) when I wrote this, but it must have put me in a dangerous condition! I have to wonder if no one read this post - or if you-all have been polite enough to not nail me to the post!

Any tilt toward the left would give a steeper angle on the blade - not a shallower one. I will post a correction!

[easterngray]

Thaks for the tip! Alec

[billmayo]

Can I tilt the 510 table right 7 degrees and use the Planer/Joiner Knife Sharpener to get 38 degree for sharpen planer and joiner knives. I had seen other woodworkers recommend 41 degrees as a compromise over the many past years. The 45 degrees seems to work good for joiner knives I have sharpen. I did find a set of joiner knives that must have been sharpen around 38 degrees cause when I did them at 45 degrees, I could only do about 1/2 of the knive edge without really cutting too much off the knive edges. Thanks.

Bill Mayo

Since you guys have done such a good job of convincing poor Alec that using non-Shopsmith blades in his planer would be tantamount to setting off a stick of dynamite in his shop, I won't add my two cents. You're right. But I want to take this opportunity to pass on a tip to Alec, since he is probably on his way to a sharpening service with the old wedge-shaped blades that he can use: Have your sharpener regrind the blades at 37-1/2 degrees. The blades come to us here at Shopsmith at a standard 45 degrees. Jim Shupert, my sharpener, convinced me to try the 37-1/2-degree angle when I took a set of worn knives to him. He said I'd get a smoother cut with less tear-out -- and I did! Works for the jointer, too. The steeper angle won't stay sharp as long, but I think the increased quality of the cut is worth the hassel of changing blades every four months instead of every six.

With all good wishes,

[charlese]

Earlier, I had posted a note that suggested a tilt of the table toward the left (toward the disk) to lessen the angle of the blade. As this is completely the wrong direction to lessen the sharpening angle - thought it necessary to post this correction.

Sorry about the previous post! (Mirror immage syndrome and bad math) Really! I wasn't smoking any funny stuff!

The standard table position when using the Planer/Joiner Knife Sharpener is FLAT (zero degrees tilt). If one wants to lessen the angle of sharpening such as changing from 45 deg. to 37 1/2 degrees - the table must be tilted to the right.

As for my personal sharpening - I think I'll ease into any lesser angles. Like first trying out an angle of about 40 deg. Don't know if that will make jointer operations smoother, but it's worth a try.