45 lock miter/ Router table setup. help!! - Woodworking Talk - Woodworkers Forum
Thread Tools Display Modes
post #1 of 7 Old 07-09-2013, 05:58 PM Thread Starter
Junior Member
JoshWood's Avatar
Join Date: Jun 2013
Location: Lancaster, Pa
Posts: 16
View JoshWood's Photo Album My Photos
45 lock miter/ Router table setup. help!!

Hello everyone,

I am having trouble setting up my table, so that im able to stand up my board to the fence. The cut that i need to make while the board is on the table, is no problem.. its when i go to make the matching cut that i run into problems.. so far, ive altered my fence so theres minimal gaps in front and behind the bit (see pic).. is there any advice for getting my part/board more steady for a more accurate cut??

It would be easier if i were needing to cut something that is more than 3 inches wide.. however.. im building a small box, and the piece is 3/4 x 2.5 x 5.5.

Thank you

Attached Images
JoshWood is offline  
Sponsored Links
post #2 of 7 Old 07-09-2013, 08:41 PM
Pain in the A$$
Burb's Avatar
Join Date: Nov 2012
Location: Republic, MO
Posts: 1,904
View Burb's Photo Album My Photos
I had this same problem so I abandoned the project, but I still have the bit. I'm curious as to what others suggest.



"Measuring is the enemy of accuracy." Chris Schwartz
Burb is offline  
post #3 of 7 Old 07-09-2013, 09:06 PM
Senior Member
Join Date: Jun 2013
Posts: 291
View bladeburner's Photo Album My Photos
If your fence had a ZCI opening for the bit, you could accomplish the cut on a piece that narrow. If I were using your fence, I'd make the end cuts on at least a 4" piece and rip to size. Or twice what you need (plus kerf), then rip 2 pieces.

A ZCI for a router bit can be made by sawing an opening slightly smaller than the bit's profile. Then loosen the fence and position the opening, centered in front of the bit. Snug the RH side of the fence and with the bit at full speed, slowly pivot the fence through the bit. To avoid tear-out, I clamp a 2 X 4 to the fence while it's being swung .

With your fence, you could also sister clamp some scrap, but since you haven't done this already, I wouldn't recommend it as it's something that I don't believe I'm capable of explaining with words.

Good luck, you'll get it....
bladeburner is offline  
Sponsored Links
post #4 of 7 Old 07-09-2013, 11:07 PM
Senior Member
BZawat's Avatar
Join Date: Sep 2012
Location: Wilkes-Barre, PA
Posts: 1,455
View BZawat's Photo Album My Photos
I'd your table has a miter slot, you could build sort of a tenoning jig.
BZawat is offline  
post #5 of 7 Old 07-10-2013, 01:28 PM
Senior Member
Join Date: Jun 2013
Posts: 291
View bladeburner's Photo Album My Photos
Someone else had the same issue last week and asked for some pix of my setup. I was away and didn't get any pix until today and now, cannot find that thread. Hopefully he is looking at this one too, as the issues are the same.

Here's a pic of a setup block (not necessary, but prevents test cuts), and the bit buried in it's cutout.

Horizontal piece, usually an end, just like a half-blind DT jig, lays flat.
This bit is a 45 degree miter bit with a locking feature added. Look closely here and you will see the top and bottom of the bit is lined up with the workpiece edges. Now note the top of the bit is in-line with the fence.

Cutting the side piece (vertical, like a half blind DT jig), supported against the tall fence and by a riding top clamp. I cut all but the very hardest wood in one pass. For 2 passes, there would be a second 1/4" hardboard fence face clamped to this one. Note the backing scrap on RH side that prevents chip out, and the whole thing is pushed pass the cutter using the rubber faced grout float. Once upon a time, I used an L shaped jig to push the piece and now I use a large carrier jig for very small stock. When the horizontal relationship is correct, the vertical relationship will be too.

The 2 pieces of scrap.

Fence pic. Also used for slot cutters and drawer lock bit (my personal favorite)

Last edited by bladeburner; 07-10-2013 at 02:03 PM. Reason: added narative
bladeburner is offline  
The Following User Says Thank You to bladeburner For This Useful Post:
JoshWood (07-12-2013)
post #6 of 7 Old 07-11-2013, 01:23 AM
Old Methane Gas Cloud
Join Date: Jun 2009
Location: Huntington Beach, California
Posts: 3,500
View rrich's Photo Album My Photos
In the book, "In the Craftsman Style" (Taunton Press), around page 131 or 132 there are very good instructions for setting up and using the bit. (It's all off the top of my head so don't flame me too bad.)

Use the right tool for the job.

Rich (Tilting right)
Huntington Beach, California
Remember that when we have the "BIG ONE" everything east of the Rockies falls into the ocean.
rrich is offline  
post #7 of 7 Old 07-11-2013, 02:52 AM
Senior Member
jharris2's Avatar
Join Date: Jul 2012
Posts: 3,339
View jharris2's Photo Album My Photos

This book is inexpensive and among other useful things contains an article "Mastering Lock Miter Bits"

Use the code on the back of the book to download a free lock miter bit troubleshooting guide.

When I die, I want to go peacefully like my grandfather did ó in his
sleep. Not yelling and screaming like the passengers in his car.

Jack Handey
jharris2 is offline  

Quick Reply

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


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

Email Address:


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
Router table modifications for using a lock miter bit. johnnie52 Tips, Tricks, & Homemade Jigs 16 07-02-2013 08:22 AM
Router Table Setup dtrider Power Tools & Machinery 19 04-21-2010 02:51 PM
Thoughts on lock-miter router bit? Streamwinner Joinery 5 09-30-2009 04:17 PM
miter lock router bit Clutchcargo Joinery 3 10-12-2007 07:27 AM
Best Router Table Setup FarFromTheNorm Power Tools & Machinery 7 06-27-2007 09:26 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