Wondering A Lock Miter Bit - Router Forums
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 36 (permalink) Old 04-09-2014, 08:33 PM Thread Starter
Registered User
 
Join Date: Jun 2011
Country: United States
First Name: Jerry
Posts: 2,645
 
Default Wondering A Lock Miter Bit

it has been suggested to me to acquire a lock miter bit for a certain project as well as other projedts in my woodworking shop.

I read on the web how difficult it is to set these bits up unless the thickness of the workpiece complies almost perfectly to a set up blocks.

I am wondering if members that are familiar with this router bit feel like the bit is really so difficult to set up that I should forget it or not, I think that the challenge of setting it up is one that I want to try and probably will, but I would appreciate some input on the subject.

Jerry
Jerry Bowen is offline  
Sponsored Links
Advertisement
 
post #2 of 36 (permalink) Old 04-09-2014, 08:57 PM
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 15,914
 
Default

I know Harry has posted before on how he sets them up. If you search Google for CMT's downloadable catalog it has instructions in it for how to set one up without the blocks. It's just a matter of getting it close by measuring and then tweaking the adjustments on scrap the same size as what you want to rout until you get it right.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is online now  
post #3 of 36 (permalink) Old 04-09-2014, 09:15 PM Thread Starter
Registered User
 
Join Date: Jun 2011
Country: United States
First Name: Jerry
Posts: 2,645
 
Default

Quote:
Originally Posted by Cherryville Chuck View Post
I know Harry has posted before on how he sets them up. If you search Google for CMT's downloadable catalog it has instructions in it for how to set one up without the blocks. It's just a matter of getting it close by measuring and then tweaking the adjustments on scrap the same size as what you want to rout until you get it right.
Makes perfect sense to me and is why I feel that I'm willing to give it a try. The height adjustment on my rounter in the Mast R lift is so precise that it just seems to me that that one could do exactly what you describe Charles.


Jerry
Jerry Bowen is offline  
Sponsored Links
Advertisement
 
post #4 of 36 (permalink) Old 04-09-2014, 09:58 PM
Registered User
 
GulfcoastGuy's Avatar
 
Join Date: Feb 2012
Country: United States
First Name: Patrick
Posts: 882
 
Default

I right there with you, Jerry. I've got a project in mind that would be a prime candidate for one but the setup fears have kept me from going for it. I found this setup tutorial that seems about as straight forward as I think it could get.

Setting Up a Locking Miter Bit

GCG

___
"I was always afraid of dying. Always. It was my fear that made me learn everything I could about my airplane and my emergency equipment, and kept me flying respectful of my machine and always alert in the cockpit. " - Chuck Yeager
___
http://www.routerforums.com/table-mo...table-saw.html
GulfcoastGuy is offline  
post #5 of 36 (permalink) Old 04-10-2014, 06:49 AM
Registered User
 
PawPawRay's Avatar
 
Join Date: Apr 2009
Country: United States
First Name: Ray
Posts: 54
 
Default

This months Shopnote Mag has step by step instructions for setting up this bit.
PawPawRay is offline  
post #6 of 36 (permalink) Old 04-10-2014, 08:01 AM
RouterForums.com User
 
harrysin's Avatar
 
Join Date: Jan 2007
Country: Australia
First Name: Harry
Posts: 14,812
     
Send a message via Skype™ to harrysin
Default

First of all Jerry there are at least three sizes of lock mitre bits covering; 12-16mm,
14-19mm and 19-28mm wood thicknesses. I sit the wood at the side of the bit, where it would be placed to commence routing, I then "squint" along the table so that I can set the height of the bit and the position of the fence. These settings are of course approximate and it then takes several test cuts on scrap wood in order to achieve a perfect result. After completing a perfect project I then make a test piece for quick set-up next time that I use the same thickness wood and with a thickness planer it is easy to duplicate the thickness. Even using the test piece very slight adjustments may still be necessary.
Like most things, practice makes perfect so, after your first perfect box, make several more and the process will no longer be a worry.
Attached Thumbnails
Click image for larger version

Name:	lock-mitre1.jpg
Views:	78
Size:	21.6 KB
ID:	70288  

Click image for larger version

Name:	lockmitre2.jpg
Views:	99
Size:	24.3 KB
ID:	70289  

Click image for larger version

Name:	lock-mitre1_1.jpg
Views:	78
Size:	63.6 KB
ID:	70290  

Click image for larger version

Name:	lock-mitre2a.jpg
Views:	73
Size:	27.6 KB
ID:	70291  

Click image for larger version

Name:	lock-mitre-test-pieces.jpg
Views:	80
Size:	62.6 KB
ID:	70292  


Harry



Nothing but heaven itself is better than a friend who is really a friend. - Plautus







Last edited by harrysin; 04-10-2014 at 08:25 AM.
harrysin is offline  
post #7 of 36 (permalink) Old 04-10-2014, 03:30 PM
Retired Moderator
 
TwoSkies57's Avatar
 
Join Date: Feb 2009
Country: United States
First Name: Bill
Posts: 6,028
   
Default

Take a look at this Jerry..

Infinity Cutting Tools Lock Miter setup guage.

2-Pc. Lock Miter Master Jig Set - For 3/8 - 1-1/8 Stock-Carbide Router Bits | Router Bit Sets | Shaper Cutters | Saw Blades | Planer Knives | Jointer Knives | Infinity Cutting Tools

A couple of Youtube video's;

Infinity Cutting Tools Lock Miter Master Jig - YouTube
Infinity Cutting Tools Lock Miter Master Jig - YouTube

PDF instructions on setup and use...

http://www.infinitytools.com/PDF/Loc...r%20Manual.pdf

"..... limited only by imagination"

"Just smile and wave boys, smile and wave"
Skipper the Penguin
TwoSkies57 is offline  
post #8 of 36 (permalink) Old 04-10-2014, 03:41 PM
BCK
Registered User
 
Join Date: Feb 2014
Country: Canada
First Name: BC
Posts: 786
 
Default

been thinking on one of these myself, but setup was an issue in my mind...thanks to all who posted and explained etc...as this did help make my mind up to get one and give it a shot...thx

http://www.natures-lifestyles-digest.com/smf

above [link]site has: outdoors type things from fishing, hunting, boating, hiking, to living off grid, gardening from veggies to flowers etc, recipes from home cooking to smokers, hobbies, home remedies, to making your own soaps etc..live members chat area.. and more...all is welcome to browse or join..
BCK is offline  
post #9 of 36 (permalink) Old 04-11-2014, 07:19 AM
Registered User
 
CharleyL's Avatar
 
Join Date: Feb 2009
Country: United States
First Name: Charley
Posts: 2,137
 
Default

The Lock Miter Master setup jigs from Infinity Tools make setting up these bits very easy and they are well worth the cost. To use them you simply determine the exact center of your stock, place the jig on the lock miter bit (it's held in place by internal magnets), and then adjust the bit height until the line on the jig matches the center of your stock. You then set the position of your fence by using the top line on the lock miter jig to the center line of a piece of your stock held against the fence. When the bit-to-stock positioning is correct you will get perfect lock miter joints. The instructions for the Lock Miter Master jigs will also explain how to make offset joints and other cool tricks that you can do with lock miter bits and the Lock Miter Master setup jigs.

Charley

Central North Carolina
CharleyL is online now  
post #10 of 36 (permalink) Old 04-11-2014, 11:10 AM Thread Starter
Registered User
 
Join Date: Jun 2011
Country: United States
First Name: Jerry
Posts: 2,645
 
Default

Quote:
Originally Posted by harrysin View Post
First of all Jerry there are at least three sizes of lock mitre bits covering; 12-16mm,
14-19mm and 19-28mm wood thicknesses. I sit the wood at the side of the bit, where it would be placed to commence routing, I then "squint" along the table so that I can set the height of the bit and the position of the fence. These settings are of course approximate and it then takes several test cuts on scrap wood in order to achieve a perfect result. After completing a perfect project I then make a test piece for quick set-up next time that I use the same thickness wood and with a thickness planer it is easy to duplicate the thickness. Even using the test piece very slight adjustments may still be necessary.
Like most things, practice makes perfect so, after your first perfect box, make several more and the process will no longer be a worry.
Harry,
In this rare instance we both spot on the same page. You have described exactly what I envisioned having to do to use the bit. Saving the scrap set up and marking is is just what I described to another member before I read your post. Thanks for you confirmation of my thoughts on the matter.

Jerry
Jerry Bowen 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
lock miter bit stripper Router Bits - Types and Usage 6 11-30-2012 01:51 PM
30 degree miter lock bit available? Jlaw Router Bits - Types and Usage 17 04-12-2012 09:16 PM
45 Degree Lock Miter bit mjeisenbaugh Router Bits - Types and Usage 9 02-02-2011 11:53 AM
Lock miter bit for 3/8' pine lpret Router Bits - Types and Usage 8 04-28-2010 09:31 AM
using a 45 Lock Miter Bit allthunbs Table-mounted Routing 3 07-07-2008 04:04 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