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Delta TP305 Planer Roller Adjustment?



 
 
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  #1  
Old January 9th 06, 03:22 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?

I just purchased my first planer and I am considering returning it.
The first 2.5" and last 2.5" of each board I plane are slightly (1/16")
thinner than the rest of the board. I have made sure that the infeed
and outfeed supports are perfectly level with the bottom plate of the
planer. I even removed the bottom plate and added one layer of masking
tape to the bottom of the plate because it was slightly lower than the
infeed and outfeed supports. The plate, infeed and outfeed are now
perfectly true to each other. I still have the problem.

I placed a piece of trued stock in the planer and lowered the cutting
assembly so that the front roller was just a hair higher than the
stock. I can see that the front roller is about 1/16" lower than the
rear roller. I think this is causing the problem. As far as I can
tell the planer does not have height adjustments on the rollers.

I am pretty sure that the problem is associated with the rollers
because the distance from the the front and rear roller to the cutting
head appears to be exactly the same as the 2.5" of problem area on the
board.

I am considering returning the planer but I wanted to see if anyone has
any recommendations first.

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  #2  
Old January 9th 06, 03:45 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?

If you try to eliminate this condition you may waste more time than it is
worth. The biggest adjustment that you can make to the planer is to NOT
have the in feed and out feed tables parallel with the planer table. You
actually want both in feed and out feed slightly elevated and tweaking will
get you the best results.


wrote in message
oups.com...
I just purchased my first planer and I am considering returning it.
The first 2.5" and last 2.5" of each board I plane are slightly (1/16")
thinner than the rest of the board. I have made sure that the infeed
and outfeed supports are perfectly level with the bottom plate of the
planer. I even removed the bottom plate and added one layer of masking
tape to the bottom of the plate because it was slightly lower than the
infeed and outfeed supports. The plate, infeed and outfeed are now
perfectly true to each other. I still have the problem.

I placed a piece of trued stock in the planer and lowered the cutting
assembly so that the front roller was just a hair higher than the
stock. I can see that the front roller is about 1/16" lower than the
rear roller. I think this is causing the problem. As far as I can
tell the planer does not have height adjustments on the rollers.

I am pretty sure that the problem is associated with the rollers
because the distance from the the front and rear roller to the cutting
head appears to be exactly the same as the 2.5" of problem area on the
board.

I am considering returning the planer but I wanted to see if anyone has
any recommendations first.



  #3  
Old January 9th 06, 03:51 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?

Ok, so my addition of masking tape to the underside of the bottom plate
to raise it exactly in line with the infeed and outfeed supports may
have exacerbated the problem. I'll remove the masking tape shims
tonight and retry.

Should the rollers be at exactly the same height from the bottom plate?
The rear roller is slightly higher than the front roller.

  #4  
Old January 9th 06, 04:18 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?


"Greg" wrote in message
oups.com...
Ok, so my addition of masking tape to the underside of the bottom plate
to raise it exactly in line with the infeed and outfeed supports may
have exacerbated the problem. I'll remove the masking tape shims
tonight and retry.

Should the rollers be at exactly the same height from the bottom plate?
The rear roller is slightly higher than the front roller.


You have 2 options.

Adjust the outer ends of the in feed and out feed tables up higher than
where they connect to the planer. You want to imagine a cross section of a
bowl. The leading end of the board should be pointed slightly down as it
enters the planer and begins to be cut. The trailing end of the board
should be slightly lower than the leading end as it exits the cut and
planer. Keep in mind that these table adjustments should only be a slight
adjustment that may not be apparent from a simple glance of the eye.
Basically the ends of an 8' board should have about 2" height difference
when entering and exiting the planer.

The simplest option is to simply hold the end of the board higher on the
trailing end when beginning to feed the wood into the planer until the
planer begins to cut the wood. As the board passes through the planer and
the trailing end begins to near completion of the cut, lift the lead end up
a bit, about 2 inches.

Basically snipe is caused by a non locking cutter head or out of adjustment
locking cutter head that rocks slightly as the pressure on the in feed and
out feed rollers inside the planer is uneven. Basically as a board starts
to enter and or exit the planer.
Snipe can also be caused on longer boards when only an in feed or out feed
roller inside the planer is in contact with the wood. The longer boards can
slightly pivot on the end of the in feed or out feed tables when it is only
under the in feed or out feed rollers inside the planer.

Snipe happens when the wood is not being pressed down by BOTH in feed and
out feed rollers inside the planer.



  #5  
Old January 9th 06, 04:36 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?

Thanks for taking the time to explain this. After reading your reply I
looked up some other posts about snipe and found this great thread.
Just in case there are any other newbies out there looking for more
info, check out this thread:

http://groups.google.com/group/rec.w... 53fe4d8d225c

Thanks again.

  #6  
Old January 9th 06, 09:51 PM posted to rec.woodworking
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Default Delta TP305 Planer Roller Adjustment?

On my benchtop planer the feed rollers are above the work as part of
the cutterhead.

The bottom rollers are not powered.

I took a piece of 8' melamine shelving and stiffened it up with some
aluminum angle. This was mounted to be the new bed of the planer. This
gives 3' of infeed table and the same outfeed. Most of the material I
plane is 4' or smaller.

I have had no snipe problems since having this support.

In my experiance the snipe is caused when the unsupported end of the
board drops and lifts the other end into the cutter head.

 




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