84" x 28" desk top glue up question - Woodworking Talk - Woodworkers Forum
 
Thread Tools Display Modes
post #1 of 13 Old 06-11-2013, 11:53 AM Thread Starter
Senior Member
 
Join Date: May 2010
Location: Philly - YO!
Posts: 1,533
View gideon's Photo Album My Photos
84" x 28" desk top glue up question

So, I am about ready to glue this up but there are a few knocks in the boards. I could find any true straight and flat pieces at the length I needed.

The material is milled to needed thickness - can't take any more off.

Would biscuits be ok for alignment or too weak? Should I go with splines? Would they help with lining the glue joints up better?
gideon is offline  
Sponsored Links
Advertisement
 
post #2 of 13 Old 06-11-2013, 12:05 PM
Old School
 
cabinetman's Avatar
 
Join Date: Jul 2007
Location: So. Florida
Posts: 24,027
View cabinetman's Photo Album My Photos
Quote:
Originally Posted by gideon View Post
So, I am about ready to glue this up but there are a few knocks in the boards. I could find any true straight and flat pieces at the length I needed.

The material is milled to needed thickness - can't take any more off.

Would biscuits be ok for alignment or too weak? Should I go with splines? Would they help with lining the glue joints up better?
For a glue up, I would not use biscuits. If anything I would use a well fitted spline. In your glue up, use clamps and cauls to keep the boards flat. This procedure has been covered many times. If you missed it I'll find a link for you.







.
cabinetman is offline  
The Following User Says Thank You to cabinetman For This Useful Post:
gideon (06-11-2013)
post #3 of 13 Old 06-11-2013, 12:22 PM Thread Starter
Senior Member
 
Join Date: May 2010
Location: Philly - YO!
Posts: 1,533
View gideon's Photo Album My Photos
I( use cauls no matter what, just wasn't sure about the splines.

Biscuits, I have mainly found useful for keeping miter joint glue ups nicely aligned but thats about it. kind of useless in most other applications.
gideon is offline  
Sponsored Links
Advertisement
 
post #4 of 13 Old 06-11-2013, 03:00 PM
Senior Member
 
info's Avatar
 
Join Date: Oct 2011
Location: Indiana
Posts: 274
View info's Photo Album My Photos
Thumbs up

Quote:
Originally Posted by gideon View Post
So, I am about ready to glue this up but there are a few knocks in the boards. I could find any true straight and flat pieces at the length I needed.

The material is milled to needed thickness - can't take any more off.

Would biscuits be ok for alignment or too weak? Should I go with splines? Would they help with lining the glue joints up better?
I like your Facebook
info is offline  
The Following User Says Thank You to info For This Useful Post:
gideon (06-11-2013)
post #5 of 13 Old 06-11-2013, 03:56 PM
Senior Member
 
MissionIsMyMission's Avatar
 
Join Date: Apr 2012
Location: Guthrie, OK
Posts: 353
View MissionIsMyMission's Photo Album My Photos
What Wood are you using? Make sure to check for alternating grain patterns to help avoid cupping.

Still Got ALL my Fingers!!!
********* *********
MissionIsMyMission is offline  
The Following 2 Users Say Thank You to MissionIsMyMission For This Useful Post:
gideon (06-11-2013), Grunkle Stan (06-11-2013)
post #6 of 13 Old 06-11-2013, 05:11 PM Thread Starter
Senior Member
 
Join Date: May 2010
Location: Philly - YO!
Posts: 1,533
View gideon's Photo Album My Photos
Quote:
Originally Posted by MissionIsMyMission View Post
What Wood are you using? Make sure to check for alternating grain patterns to help avoid cupping.
Walnut - already did all that. The base is all 8/4 walnut as well and will act as a great stabilizer. I oriented all of what amounts to quartersawn faces up and down to better resist movement.
gideon is offline  
post #7 of 13 Old 06-11-2013, 06:05 PM
Senior Member
 
MissionIsMyMission's Avatar
 
Join Date: Apr 2012
Location: Guthrie, OK
Posts: 353
View MissionIsMyMission's Photo Album My Photos
If it's flat and of uniform thickness then careful clamping and alignment with the use of cauls should be all thats needed. 8/4 material should provide adequate surface area for glueup that the use of splines/biscuits should not be necessary. Just my opinion. When working with walnut I always wipe it down with acetone prior to glue up.

Still Got ALL my Fingers!!!
********* *********
MissionIsMyMission is offline  
post #8 of 13 Old 06-12-2013, 12:47 AM
Senior Member
 
Join Date: Sep 2011
Posts: 25,995
View Steve Neul's Photo Album My Photos
I wouldn't use biscuits for alignment purposes. They will add some strength to the joint but a spline would be better.
Steve Neul is offline  
post #9 of 13 Old 06-12-2013, 09:29 AM Thread Starter
Senior Member
 
Join Date: May 2010
Location: Philly - YO!
Posts: 1,533
View gideon's Photo Album My Photos
Quote:
Originally Posted by MissionIsMyMission View Post
If it's flat and of uniform thickness then careful clamping and alignment with the use of cauls should be all thats needed. 8/4 material should provide adequate surface area for glueup that the use of splines/biscuits should not be necessary. Just my opinion. When working with walnut I always wipe it down with acetone prior to glue up.

the base is 8/4 - the top is 7/8" +
gideon is offline  
post #10 of 13 Old 06-12-2013, 09:30 AM Thread Starter
Senior Member
 
Join Date: May 2010
Location: Philly - YO!
Posts: 1,533
View gideon's Photo Album My Photos
thanks for all the advice. I've used splines and they really helped get the boards aligned properly.

There are still some high and low spots but I'll just plane those down a bit.
gideon is offline  
post #11 of 13 Old 06-12-2013, 11:04 AM
bzguy
 
Join Date: Jul 2011
Location: Caye Caulker, Belize
Posts: 581
View bzguy's Photo Album My Photos
This is unorthodox but I use cope and stick door knives or bits to "tongue and groove" long board glue ups.
If you make sure stock is held flat on shaper or router table, (vertical finger board or better yet stock feeder) they align perfectly making for a much stronger glue joint and eliminate the need for cauls.
bzguy is offline  
The Following User Says Thank You to bzguy For This Useful Post:
gideon (06-12-2013)
post #12 of 13 Old 06-12-2013, 11:41 AM
Senior Member
 
Join Date: May 2013
Posts: 190
View Grunkle Stan's Photo Album My Photos
Question:

Could one use dowels instead of biscuits / splines / tongue and groove for such a table top???

Studies have shown that having a ladder in the home is more dangerous than having a firearm. That's why I own 10 guns... in case some maniac tries to sneak a ladder into my house...
Grunkle Stan is offline  
post #13 of 13 Old 06-12-2013, 10:02 PM
bzguy
 
Join Date: Jul 2011
Location: Caye Caulker, Belize
Posts: 581
View bzguy's Photo Album My Photos
Sure, dowels would work, biscuit machines are just faster than doweling jigs.
There are endless ways to do any project, everyone has there own tried and true favorite.
I have a dedicated router table with 2 routers on opposite sides of a wide fence for cope and stick doors.
That's why i do it the way I do, it works great.
bzguy is offline  
The Following User Says Thank You to bzguy For This Useful Post:
gideon (06-13-2013)
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Oops, used wrong glue, can it be "sealed"? bitshred General Woodworking Discussion 3 04-29-2013 03:17 PM
How to glue and screw in a "+" joint when building shelves WoodWorker916 Design & Plans 6 05-31-2012 05:18 AM
Difference between "Grizzly" and "Polar Bear" Planers? NickSaw76 Power Tools & Machinery 15 02-25-2012 12:20 AM
Dust Collection Question on running 4" to 2" for Lathe set-up BradK12 Dust Collection 8 02-09-2012 10:01 AM
Newb Question - carving 1/4" deep in 3/4" wood? raindog308 General Woodworking Discussion 14 11-17-2011 11:01 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome