JP

John Patmore

09/08/2003 10:34 PM

Grain tearing when planing

I have a problem with the grain tearing on some pine boards I am planing.

I have posted pictures of the problem (same thread subject line) in
<news:alt.binaries.pictures.woodworking>

All assistance appreciated.

--
Regards,
John Patmore - <mailto:[email protected]>
UFAQ: Unofficial Frequently Asked Questions -
<http://www.ufaq.fsnet.co.uk/>


This topic has 7 replies

bB

[email protected] (BUB 209)

in reply to John Patmore on 09/08/2003 10:34 PM

10/08/2003 1:35 AM

This question triggered a memory of
something I haven't thought of for a long
time: I took a community college
woodworking course about 20 years ago
and they had a very large thickness
planer that had helical blades. I've never
seen one before or since. I wonder if they
cut with less tearing.

sS

[email protected] (Sbtypesetter)

in reply to [email protected] (BUB 209) on 10/08/2003 1:35 AM

10/08/2003 4:12 AM

To stop "grain tearing", order the Brian Burns
Double Bevel Sharpening System booklet.
He details how to sharpen a planer and jointer
(along with ckisels and planes) for incredibly
smooth cuts with little to no tear-out on curly
maple. I have the book. very good.

-Rick Buchanan

Cc

"CW"

in reply to John Patmore on 09/08/2003 10:34 PM

10/08/2003 6:16 PM

Yes, they do. The helical blades are a far superior design but more
complicated to make.
"BUB 209" <[email protected]> wrote in message
news:[email protected]...
> This question triggered a memory of
> something I haven't thought of for a long
> time: I took a community college
> woodworking course about 20 years ago
> and they had a very large thickness
> planer that had helical blades. I've never
> seen one before or since. I wonder if they
> cut with less tearing.

JP

John Patmore

in reply to John Patmore on 09/08/2003 10:34 PM

10/08/2003 1:16 AM

In article <[email protected]>, [email protected]
<[email protected]> says...
> Are you working against grain? Is the wood a bit green?

From other comments received, it appears that "grain reversal" may be the
problem. I'll have to try swapping the plane direction. The boards are
dry AFAIK (prepacked from local BORG).

--
Regards,
John Patmore - <mailto:[email protected]>
UFAQ: Unofficial Frequently Asked Questions -
<http://www.ufaq.fsnet.co.uk/>

TV

Tom Veatch

in reply to John Patmore on 09/08/2003 10:34 PM

15/08/2003 6:27 AM

On 10 Aug 2003 01:35:42 GMT, [email protected] (BUB 209) wrote:

=>This question triggered a memory of
=>something I haven't thought of for a long
=>time: I took a community college
=>woodworking course about 20 years ago
=>and they had a very large thickness
=>planer that had helical blades. I've never
=>seen one before or since. I wonder if they
=>cut with less tearing.



http://byrdtool.com/journals.html
Tom Veatch
Wichita, KS

c

in reply to John Patmore on 09/08/2003 10:34 PM

09/08/2003 7:24 PM

John Patmore <[email protected]> wrote:

>I have a problem with the grain tearing on some pine boards I am planing.
>
>I have posted pictures of the problem (same thread subject line) in
><news:alt.binaries.pictures.woodworking>
>
>All assistance appreciated.

Are you working against grain? Is the wood a bit green?

Wes


--
Reply to:
Whiskey Echo Sierra Sierra AT Gee Tee EYE EYE dot COM
Lycos address is a spam trap.

DD

DJ Delorie

in reply to John Patmore on 09/08/2003 10:34 PM

10/08/2003 10:41 AM


[email protected] (BUB 209) writes:
> and they had a very large thickness planer that had helical blades.
> I've never seen one before or since.

Grizzly sells spiral jointers and planers, but they're made with a
zillion square carbide cutters, not an actual single spiral blade, so
they still don't shear cut.


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