Need jointer help - Woodworking Talk - Woodworkers Forum
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post #1 of 8 Old 10-20-2017, 08:18 AM Thread Starter
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Need jointer help

Hi everyone, I'm a newbie at woodworking and i just started working with my jointer. I'm trying to joint the side of a 21 in long board by 14 in wide. But my problem is I can pass the board across the blade fine when the jointer is set at zero but if i increase the blade height slightly the board hits the edge of the outfeed table. I've measured across the two tables using a straight edge and they're fine. I'm a bit stumped at to what if anything needs adjusting and how to determine whats wrong. Any help greatly appreciated. Thanks, Bryan
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post #2 of 8 Old 10-20-2017, 09:10 AM
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The jointer's knives are a tad too low. They need to be just slightly higher than the outfeed table at their peak rotation. A few thousandths of an inch is enough. There are videos about that all over the web.

Dave in CT, USA
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post #3 of 8 Old 10-20-2017, 11:48 AM
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For your reference, my Craftsman manual specifies that the knives should be "a paper's thickness" above the outfeed table.

George
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post #4 of 8 Old 10-20-2017, 07:10 PM
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The rear table should be set perfectly level with the cutting edge of the knives. If the rear table is too high the board will hang on the rear table.
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post #5 of 8 Old 10-20-2017, 07:14 PM
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If the outfeed table is not properly adjusted, as Steve stated, you will not get a straight edge. The edge will be either be convex or concave slightly.

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post #6 of 8 Old 10-20-2017, 09:15 PM
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The age old question. Should the blades be level or slightly higher. There probably will never be an answer to that one. Personally, I would do whatever the manual for MY machine called for. Not what the manual for someone else's machine stated. There is a reason that manufacturers write manuals for specific machines and do not just rely on a general manual.
George

Last edited by GeorgeC; 10-20-2017 at 09:18 PM.
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post #7 of 8 Old 10-21-2017, 07:32 AM Thread Starter
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Thanks for all the replies everyone! I'm not seeing any adjustments for the infeed table, nor any adjustments for the spiral blades, before i touch the outfeed table, I'm calling the manufacturer and get their input. I'll repost what happens after that.
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post #8 of 8 Old 10-21-2017, 07:45 AM
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Quote:
Originally Posted by bgreifinger View Post
Thanks for all the replies everyone! I'm not seeing any adjustments for the infeed table, nor any adjustments for the spiral blades, before i touch the outfeed table, I'm calling the manufacturer and get their input. I'll repost what happens after that.
What model jointer do you have? Some jointers don't have a way to adjust the rear table. You have to install the knives level with the table. All of them though have an adjustment for the infeed table.
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