MDF vs. Hardwood - Router Forums
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 05-11-2011, 07:41 PM Thread Starter
Registered User
 
Ken Bee's Avatar
 
Join Date: Dec 2010
Country: United States
First Name: Ken
Posts: 483
 
Default MDF vs. Hardwood

I have a plan for a Box Joint Jig that calls for it to be constructed with 3/4 and 1 inch hardwood. I have an extremely small shop and about the only thing I build is boxes, clocks, signs and some scroll work. Thereby about the only hardwood I have on hand is from 1/8 to 1/2 inch thick stock. I do have enough MDF to build a house in 1/2 and 3/4 inch thick pieces, so my question is, would MDF be sufficiently hard enough to build a Box Joint Jig?

Actually my primary concern would be the inability of MDF to hold the screws and fasteners to build the jig. Is there a way around this particular concern or am I being overly cautious?

Thanx

When something is advertised as being foolproof there is always a better class of fool that comes along to prove them wrong.
Ken Bee is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 05-11-2011, 08:01 PM
Forum Contributor
 
Join Date: Jan 2006
Country: United States
First Name: Bj
Posts: 23,786
       
Default

Hi Ken

It will work for most jigs , MDF likes to split if you drive the screw in on the edge side of MDF like you know but you can get around that error by putting in a 1/2" wooden dowel 1st..and than glue it in place and than screw into it..with the right predrilled hole..


=======

Quote:
Originally Posted by Ken Bee View Post
I have a plan for a Box Joint Jig that calls for it to be constructed with 3/4 and 1 inch hardwood. I have an extremely small shop and about the only thing I build is boxes, clocks, signs and some scroll work. Thereby about the only hardwood I have on hand is from 1/8 to 1/2 inch thick stock. I do have enough MDF to build a house in 1/2 and 3/4 inch thick pieces, so my question is, would MDF be sufficiently hard enough to build a Box Joint Jig?

Actually my primary concern would be the inability of MDF to hold the screws and fasteners to build the jig. Is there a way around this particular concern or am I being overly cautious?

Thanx



"It's fine to disagree with other members as long as you respect their opinions"

Marc Sommerfeld Tools ,Videos
http://www.youtube.com/channel/UCT-n...RWaEpMA/videos

Find all threads started by bobj3
http://www.routerforums.com/search.php?searchid=944097


bobj3 is offline  
post #3 of 10 (permalink) Old 05-11-2011, 08:23 PM Thread Starter
Registered User
 
Ken Bee's Avatar
 
Join Date: Dec 2010
Country: United States
First Name: Ken
Posts: 483
 
Default

Quote:
Originally Posted by bobj3 View Post
Hi Ken

It will work for most jigs , MDF likes to split if you drive the screw in on the edge side of MDF like you know but you can get around that error by putting in a 1/2" wooden dowel 1st..and than glue it in place and than screw into it..with the right predrilled hole..


=======
Thanks Bob, That is another item I have an abundance of, Dowels in various sizes. Actually most of the fasteners would be located in the flat side of the material as opposed to the ends so maybe I will be OK with the MDF using your suggested fix.

When something is advertised as being foolproof there is always a better class of fool that comes along to prove them wrong.
Ken Bee is offline  
Sponsored Links
Advertisement
 
post #4 of 10 (permalink) Old 05-11-2011, 08:36 PM
Forum Contributor
 
Join Date: Jan 2006
Country: United States
First Name: Bj
Posts: 23,786
       
Default

Hi Ken

I make a lot of jigs and most of the time I just glue them up,that's one of the neat things about MDF it holds with just glue..


==========

Quote:
Originally Posted by Ken Bee View Post
Thanks Bob, That is another item I have an abundance of, Dowels in various sizes. Actually most of the fasteners would be located in the flat side of the material as opposed to the ends so maybe I will be OK with the MDF using your suggested fix.



"It's fine to disagree with other members as long as you respect their opinions"

Marc Sommerfeld Tools ,Videos
http://www.youtube.com/channel/UCT-n...RWaEpMA/videos

Find all threads started by bobj3
http://www.routerforums.com/search.php?searchid=944097


bobj3 is offline  
post #5 of 10 (permalink) Old 05-11-2011, 09:24 PM
Registered User
 
Join Date: Mar 2011
Country: United States
First Name: John
Posts: 48
 
Default

MDF is perfect for jigs

john
jcr3 is offline  
post #6 of 10 (permalink) Old 05-12-2011, 10:55 AM Thread Starter
Registered User
 
Ken Bee's Avatar
 
Join Date: Dec 2010
Country: United States
First Name: Ken
Posts: 483
 
Default

Quote:
Originally Posted by bobj3 View Post
Hi Ken

I make a lot of jigs and most of the time I just glue them up,that's one of the neat things about MDF it holds with just glue..


==========
Problem solved Bob.

I just ran across a piece of 7/8 thick live edge maple I had bought on the cheap to use for box lids. I cut it a few weeks ago and got 2 lids and the remaining piece is only 1/8 inch shorter than the plan calls for and I doubt that will create a major problem as well as the extra bit of thickness considering it will be the fence. The rest of the jig can be made with the MDF because the fasteners go into the face and all the way through for adjustment slots and hold downs.

Thanks again for all your input.

When something is advertised as being foolproof there is always a better class of fool that comes along to prove them wrong.
Ken Bee is offline  
post #7 of 10 (permalink) Old 05-14-2011, 10:15 AM
Registered User
 
istracpsboss's Avatar
 
Join Date: Sep 2008
Country: Croatia
First Name: Peter
Posts: 1,683
 
Default

Pretty much all my jigs are MDF. If I've got to fix to an edge I simply use barrel nuts.
5 X M6 X 60 FURNITURE BOLTS AND BARREL NUTS BEDS COTS | eBay UK which create exceptionally strong joints, as well as allowing for knock down, which can sometimes be useful.

Cheers

Peter
istracpsboss is offline  
post #8 of 10 (permalink) Old 05-14-2011, 10:31 AM Thread Starter
Registered User
 
Ken Bee's Avatar
 
Join Date: Dec 2010
Country: United States
First Name: Ken
Posts: 483
 
Default

Quote:
Originally Posted by istracpsboss View Post
Pretty much all my jigs are MDF. If I've got to fix to an edge I simply use barrel nuts.
5 X M6 X 60 FURNITURE BOLTS AND BARREL NUTS BEDS COTS | eBay UK which create exceptionally strong joints, as well as allowing for knock down, which can sometimes be useful.

Cheers

Peter
You know, that is a great idea Peter. I will still use the piece of Maple I have for the jig I had questioned about, but there are a couple of others I want to build I can adapt your suggestion to.

Thanks for the info Peter and Cheers to you.

When something is advertised as being foolproof there is always a better class of fool that comes along to prove them wrong.
Ken Bee is offline  
post #9 of 10 (permalink) Old 05-14-2011, 01:51 PM
Retired Moderator
 
Mike's Avatar
 
Join Date: Nov 2004
Country: United States
First Name: Mike
Posts: 11,921
 
Send a message via Skype™ to Mike
Default

Ken, building your own jigs is a great thing. If you produce a lot of boxes it is worth considering the Oak Park box joint jigs. They are built from polyurethane so your projects slide easily and there is no problem with wood warping or MDF falling apart. Since you can buy all 3 for about $50 why reinvent the wheel? You will find many happy users on the forums.

Mike
"Living in the D" (this means Detroit!)
"It's fine to disagree with other members as long as you respect their opinions"
Mike is offline  
post #10 of 10 (permalink) Old 05-15-2011, 05:06 PM
Registered User
 
Join Date: Jul 2010
Country: United States
First Name: Brian
Posts: 13
 
Default

Baltic birch plywood? Works great
bstadtler is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Router Forums 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
flush trimming 3/4" and 1" mdf z399y General Routing 8 05-09-2010 02:09 PM
Hardwood edging on router table build the_nite_owl Table-mounted Routing 22 11-03-2009 01:17 AM
Req. Critique - TS Ext Table: MDF table top and mounting - avoiding splitting BigJimAK Table-mounted Routing 11 06-14-2009 12:38 PM
5 Tips When Choosing Hardwood Flooring John_smith Project Plans and How To 0 10-17-2008 07:19 AM
Trimming mitered hardwood edging Drew Eckhardt General Routing 5 10-11-2008 08:59 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 On
Refbacks are On

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