• Beware of Counterfeit Woodturning Tools (click here for details)
  • Johnathan Silwones is starting a new AAW chapter, Southern Alleghenies Woodturners, in Johnstown, PA. (click here for details)
  • Congratulations to Paul May for "Checkerboard (ver 3.0)" being selected as Turning of the Week for March 25, 2024 (click here for details)
  • Welcome new registering member. Your username must be your real First and Last name (for example: John Doe). "Screen names" and "handles" are not allowed and your registration will be deleted if you don't use your real name. Also, do not use all caps nor all lower case.

Mixing grain orientation

Joined
Mar 19, 2016
Messages
1,174
Likes
1,268
Location
Haubstadt, Indiana
I want to do a small hollow form and at the opening I was going to add three pieces about 3/4" ranging from about 3" at the base to 1-1/2 at the opening. The hollow form will be endgrain and I have two pieces of endgrain Blackwood. For contrast between the Blackwood I have holly or yellow heart, but these pieces would be side grain. Is it a "no-no" to mix endgrain and side grain?
 

john lucas

AAW Forum Expert
Joined
Apr 26, 2004
Messages
8,321
Likes
3,576
Location
Cookeville, TN
Well you didn't tell us what the hollow for is. 3" and smaller won't have much movement. If you can make the blackwood overlap the opening and use a flexible glue it should never be a problem. Ideally you should not mix grain directions but a lot of us have gotten away with it mostly due to dumb luck picking woods that didn't have a lot of movement. You can find information on the web about wood movement of each species. So ideally you can simply compare the woods your using and see. Be aware that wood moves differently in 3 different planes so you need to read up on that to better understand what your getting into. Side grain across the grain is the largest movement and endgrain the least so what you are trying to do will have the most problems.
 
Joined
Mar 19, 2016
Messages
1,174
Likes
1,268
Location
Haubstadt, Indiana
John, a bit more description. I was thinking of doing about a 6-7" base hollow form maybe 8" tall with the opening described above if that makes sense. Since the pieces are somewhat small and end up about 1/4" thick after hollowing, I was more concerned about aesthetics than wood movement, although that needs to be considered. I don't have any particular reason for this piece as I just want to make it
 

Bill Boehme

Administrator
Staff member
Beta Tester
TOTW Team
Joined
Jan 27, 2005
Messages
12,886
Likes
5,169
Location
Dalworthington Gardens, TX
Website
pbase.com
I agree with John that it wouldn't be a problem for small items. Cross grain glue joints can be a problem on large projects where wood movement is a more significant factor, but even with furniture that is in constant-temperature constant-humidity air conditioned space, seasonal movement will often be minimal.
 

john lucas

AAW Forum Expert
Joined
Apr 26, 2004
Messages
8,321
Likes
3,576
Location
Cookeville, TN
No I've seen some really cool pieces that had end grain inbetween some side grain. I can't say for sure that they would last a lifetime with cross grain glue joints but the wood movement on each piece would be pretty small. I saw someone do a basket weave kind of look with vertical grain going up and down and horizontal grain going sideways so it looked just like a woven bowl.
 
Back
Top