Jointer problems

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Forum topic by jasonallen posted 02-27-2016 02:36 PM 583 views 0 times favorited 5 replies Add to Favorites Watch
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175 posts in 1041 days

02-27-2016 02:36 PM

Topic tags/keywords: jointer

I bought an older Rockwell 6 inch jointer when I first started woodworking. I didn’t know what to look for at the time and didn’t realize it was missing the part that locks the fence. The knives were totally shot also. I was never able to get them out because they have probably been in there for 40 years. The plan was to take it to my local Rockler dealer to be rebuilt but then they went out of business. That’s not today’s problem though. The problem is this: when I use that jointer as it is it only removes material from the front and back ends of the board leaving a high spot in the middle.
So, after Rockler went out of business I found a good deal on a very lightly used Ridgid 6 inch jointer and bought it. It does the exact same thing. I have the outfeed table set at the same height as the knives and the infeed table set at the desired depth of cut. It doesn’t seem to matter where I apply pressure during the planing. I don’t really think it’s operator error because I can use a friends jointer just fine and he has the same problem using both of mine. Does anyone have some idea of what is going on here? I find it very strange that I have 2 different jointers and both cause me the same problem. The only thing I can think of is a retired cabinet maker once told me that a jointer that is set up improperly is the most worthless tool in the shop and maybe I’m just not getting them set up right. I don’t have a book for either one but I can’t imagine what I could do any differently. Thanks for any ideas.

-- Skill and confidence are an unconquered army.

5 replies so far

View Ger21's profile


1047 posts in 2552 days

#1 posted 02-27-2016 03:10 PM

Sounds like your outfeed table may be a little too high. If the outfeed table isn’t aligned perfectly with the knives, you won’t get flat boards. The table must also be perfectly parallel.

When using a jointer, all the pressure should be applied over the outfeed table.

-- Gerry,

View Aj2's profile


628 posts in 1219 days

#2 posted 02-27-2016 03:28 PM

I agree out feed table is higher than your highest knife.Lower the out feed table till you see snipe on the end of the board.Then raise it up a little bit at a time till the snipe is gone.
Most important is too get all the knives set at the same height.
Keep at it don’t give up.

View AlaskaGuy's profile


2396 posts in 1730 days

#3 posted 02-27-2016 08:29 PM

I set my out feet table 2 thousands below knife height.

Jointer Problems, Causes & Fixes

-- Alaskan's for Global warming!

View cutmantom's profile


388 posts in 2456 days

#4 posted 02-27-2016 08:39 PM

Check with a long straight edge to see if both tables are in line, raise the infeed to a zero cut, you should have a perfectly straight surface one end to the other

View jasonallen's profile


175 posts in 1041 days

#5 posted 02-27-2016 10:14 PM

Playing around more with the outfeed table seems to have helped quite a bit. Thanks all!

-- Skill and confidence are an unconquered army.

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