Jointer Problems . . . Is this "snipe?" - Router Forums
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post #1 of 16 (permalink) Old 02-13-2010, 09:12 PM Thread Starter
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Default Jointer Problems . . . Is this "snipe?"

Photo attached. My planer-jointer pretty much always takes a little "divot" at the end of everything I put through it.

Is this "snipe" and how do I fix it? Seems not to matter how shallow the cut is.
I generally get around it by, rather wastefully, cutting things over length and trim later.
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post #2 of 16 (permalink) Old 02-13-2010, 09:24 PM
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snipe it is. You need to raise the out-feed table the same height as the cutter head. check your user manual for directions, if you don't have one most manufactures have them available for download on their websites.
this might help some read this.
http://www.newwoodworker.com/jntrprobfxs.html

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post #3 of 16 (permalink) Old 02-13-2010, 09:41 PM
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Yes Terry this is indeed snipe and is where the manual comes in. the feed rollers have to be accurately adjusted and the procedure is different for each brand. Additionally, when feeding in the board, slightly raise the far end, and do the same when it leaves the machine, slightly raise the end. Because of the above, I don't get snipe at all. This subject has, in the past been discussed at length, a forum search may prove helpful.

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post #4 of 16 (permalink) Old 02-13-2010, 09:51 PM
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That's a good one Rick, the best one I have seen

========

uote=drasbell;164389]snipe it is. You need to raise the out-feed table the same height as the cutter head. check your user manual for directions, if you don't have one most manufactures have them available for download on their websites.
this might help some read this.
Jointer Problems, Causes & Fixes - NewWoodworker.com LLC[/quote]




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post #5 of 16 (permalink) Old 02-14-2010, 07:40 AM
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The snipe appears to be on the edge, so I assume you were jointing the stock, and not planing it. That makes a difference.
Is it the leading edge, or trailing?

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post #6 of 16 (permalink) Old 02-14-2010, 08:59 AM
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Terry...

As you finish running your board across the jointer, try focusing the downward pressure from your trailing hand a little further forward on the board. I've had pretty good luck doing it this way both edge jointing and flattening out the board. I generally go 12 to 18 inches.

Need to make sure the jointers infeed and outfeed tables are perfectly parallel to one another...

Read the article Rick posted.... very good stuff...

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post #7 of 16 (permalink) Old 02-14-2010, 10:01 AM Thread Starter
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Many thanks for the replies.
I rarely face plane anything but, when I do, I still get the snipe. It only occurs on the trailing end. It seems exactly to match the problem in the link Rick supplied.
I have already tried shifting pressure to the outfeed table well before the end reaches the cutters to no avail. Ditto for raising the end as it leaves the infeed table.

This has been happening for a long time . . . predates the replacement of the knives which I did last year. I had hoped to be able to avoid spending money on alignment aids such as pictured in the attached image. I recall spending some time aligning the knives with a rafter square. I thought I had done a good job but, quite apparently, I did not get it right. The manual is not a problem. I have it. Can't say as I much enjoy fooling about with the cutter head though . . . the wedges and lifter screws. Anyone had success in aligning knives using only a rafter square as a straight edge rather than a jig as pictured? Or are they essential to this task?
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post #8 of 16 (permalink) Old 02-15-2010, 10:14 AM Thread Starter
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Well, in about one hour I eliminated snipe.
Now, of course, I have taper.

I would like to try a magnetic device such as given in the Finewoodworking link: Jointer Knife-Setting Jig - Fine Woodworking Video

Now I see the beauty of an adjustable outfeed table. Sure wish I had one.

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post #9 of 16 (permalink) Old 02-15-2010, 11:08 AM
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I most always get taper. Seems to be a part of jointing. I'll take that out with the planer. It can be reduced by jointing the ends (high points) before making a full length cut.
What jointer do you have? I don't recall any without an adjustable outfeed table.

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post #10 of 16 (permalink) Old 02-15-2010, 12:56 PM Thread Starter
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Quote:
Originally Posted by AxlMyk View Post
What jointer do you have? I don't recall any without an adjustable outfeed table.
You don't spend enough time slumming.
It carries the Sears Craftman name but I understand it is a design marketed under many brands. Says "Made in the USA." Image of it is attached.

I thought it a wondrous machine when I bought it new back in 1976 and, in truth, it has served me rather well although I know now there are far better machines than this old, a little rusty, dingy gray beast. The better ones are bright, with slick, shiny beds and green bodies.
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