Help
Require Assistance? Read the Beginners Guide to RouterForums.com
RouterForums.com - Router and Woodworking Discussion Community
Register Now!
It appears that you aren't a registered member, click below to instantly register and become a member of the RouterForums.com Community!

Register Now!

** Registration removes majority of the website advertisements **



Go Back   Router Forums > Routers > Table-mounted Routing

Base Plate with 1 1/2" versus 3 1/8" center

This is a discussion on Base Plate with 1 1/2" versus 3 1/8" center within the Table-mounted Routing forums, part of the Routers category; Is there any disadvantages to the 3 1/8" center? ...Or advantages to the 1 1/2"? ...



Replies: 6, Views: 510

New Reply
 
LinkBack Thread Tools Display Modes
Old 11-21-2007, 06:41 PM   #1 (permalink)
Registered User
 
Join Date: Nov 2007
Location: Chambly, Quebec
Posts: 79
tpyke is on a distinguished road

Default Base Plate with 1 1/2" versus 3 1/8" center
Report Post Report This Post!

Is there any disadvantages to the 3 1/8" center?
...Or advantages to the 1 1/2"?
I figure if you can fit all bits in the 3 1/8", whats the point of the 1.5"??
tpyke is offline  
Alt Sponsor Post
Advertising



Remove these advertisements by registering for your free RouterForums.com account today!

Alt Sponsored Links

__________________
This advertisment post is not shown to registered members.
Register your free account today and become a member of Router Forums
   
Old 11-21-2007, 07:04 PM   #2 (permalink)
Forum Contributor
 
AxlMyk's Avatar
 
Join Date: Jun 2006
Location: Hartland, Mi. USA
First Name: Mike
Posts: 2,365
AxlMyk is a name known to allAxlMyk is a name known to all

Default
Report Post Report This Post!

You want the opening as small as possible for safety and control of the operation. If you were to use a 1/2" bit in a 3 1/8" opening, you could wind up with your stock trying to go down the hole. Not a good situation. If you were using a panel raising bit, you want to have the large opening to clear the size of the bit. That's why plates have inserts to adjust the size of the opening.
__________________
.
Never, under any circumstances, combine a sleeping pill and a laxative on the same night.

Mike - Retired FoMoCo Tradesman
My Gallery @ http://www.routerforums.com/axlmyks-stuff/
AxlMyk is offline  
Old 11-21-2007, 07:06 PM   #3 (permalink)
Registered User
 
Join Date: Nov 2007
Posts: 3
Mainewood is on a distinguished road

Default
Report Post Report This Post!

Quote:
Originally Posted by tpyke
Is there any disadvantages to the 3 1/8" center?
...Or advantages to the 1 1/2"?
I figure if you can fit all bits in the 3 1/8", whats the point of the 1.5"??
TPYKE,
For starters, you want to have as much flat surface around your cutter as possible. This helps reduce the chance of your project piece, depending on its size, from dipping into the open space around your cutter and messing up your work and possibly your fingers. Keeping the size of the hole as close to the cutter diameter as possible helps keep dust out of your router motor as well--just a couple of suggestions.

Happy Thanksgiving,
Mainewood (Ray)
Mainewood is offline  
Old 11-21-2007, 07:23 PM   #4 (permalink)
Forum Contributor
 
bobj3's Avatar
 
Join Date: Jan 2006
Location: Colorado U.S.A.
First Name: Bj
Posts: 14,730
bobj3 has much to be proud ofbobj3 has much to be proud ofbobj3 has much to be proud ofbobj3 has much to be proud of

Default
Report Post Report This Post!

Hi tpyke

It's more or less a safety issue ,it's true you can use just about any bit if the hole is 3 1/8" but do you realy want to...

Most of the time you would only see 66% of the hole at one time but that black hole can be dangerous if the part you are routing falls into that hole and jams the bit it can happen so quick...and you will not need to install a TP holder on your router cabinet...as a back up device...

The hole should only be just a bit bigger than the bit you are using,most don't use the brass inserts the norm they just use the 1 1/2" hole that's in the base plate and that's fine most of the time but the brass insert should be in place when you are using less say a 1/4" bit....again it's a safety issue and it's not worth the risk ,it's only some wood your working with...if it's worth doing it must be worth doing it safe..

http://www.leevalley.com/wood/page.a...000,51208&ap=1
http://www.leevalley.com/wood/page.a...000,51208&ap=1
http://www.harborfreight.com/cpi/cta...emnumber=95160

Multi-Sided Glue Joint Router Bits
http://www.mlcswoodworking.com/shops...ed_glue_anchor
http://woodworkersworld.net/router_b...ter_bits.shtml
http://www.sommerfeldtools.com/list.asp?d=47&p=1
http://cgi.ebay.com/1-PC-1-2-Shank-8...QQcmdZViewItem

===============






Quote:
Originally Posted by tpyke
Is there any disadvantages to the 3 1/8" center?
...Or advantages to the 1 1/2"?
I figure if you can fit all bits in the 3 1/8", whats the point of the 1.5"??
Attached Images
File Type: jpg 6844.jpg (33.1 KB, 33 views)
File Type: jpg 6847.jpg (30.6 KB, 32 views)
File Type: jpg 6943.jpg (42.5 KB, 34 views)
File Type: jpg 6842.jpg (39.1 KB, 33 views)
File Type: jpg 7268.jpg (126.2 KB, 13 views)
__________________
MLCS Instruction Pages & Videos
plus FREE MLCS Project Plans
http://www.mlcswoodworking.com/shops.../instruct.html

Part Finder
find parts for your power tools

http://www.ereplacementparts.com/
Need some help replacing the parts
http://forums.ereplacementparts.com/

Many Router Tips from RWS
http://www.routerworkshop.com/router_tip_glossary.html
http://www.routerforums.com/email-ro...-members-only/

Router Tables ,Ready to use
http://www.rt1000.com/
http://rt1000.com/_wsn/page2.html

Bob J.

Last edited by bobj3; 11-23-2007 at 12:17 PM.
bobj3 is offline  
Old 11-22-2007, 04:28 AM   #5 (permalink)
Registered User
 
Join Date: Nov 2007
Location: Chambly, Quebec
Posts: 79
tpyke is on a distinguished road

Default
Report Post Report This Post!

I'm surprised that no one sells a 3 1/8 insert with a 1 1/2" hole like Bob made....or do they?

Are the Oak park base plates counter bored to accept the brass inserts? If so, is it 3/16 or 3/4?
tpyke is offline  
Old 11-22-2007, 04:47 AM   #6 (permalink)
Registered User
 
RustyW's Avatar
 
Join Date: Dec 2005
Location: Oroville CA, USA
First Name: Rusty
Posts: 600
RustyW will become famous soon enough

Default
Report Post Report This Post!

tpyke, here is one of the cheapest out of many that are available. The smallest hole is recessed to accept Porter Cable style guides.

http://www.harborfreight.com/cpi/cta...emnumber=94331
__________________
Rusty

If You Want It Bad, You Get It Bad The Worse You Want It, The Worse You Get It
RustyW is offline  
Old 11-22-2007, 09:10 AM   #7 (permalink)
Forum Contributor
 
bobj3's Avatar
 
Join Date: Jan 2006
Location: Colorado U.S.A.
First Name: Bj
Posts: 14,730
bobj3 has much to be proud ofbobj3 has much to be proud ofbobj3 has much to be proud ofbobj3 has much to be proud of

Default
Report Post Report This Post!

Hi tpyke

The 3 1/8" hole size is a odd ball size, no one makes a insert that size that I know about and the 3 1/8" is a tapered hole that's why you see the 3 1/4" OD insert ring I made...just took it to the drum sander to get it to 3 1/4" size with true square sides..

I also like the PC type brass guides that Rusty W. talked about but I also like the 1 1/2' brass guides and I have a insert ring to take them on,,,they make it nice when you want to use a 1 1/2" bit with the insert in place unlike the PC type (1 3/16") brass guides that max out at 1" ID...



=========

Quote:
Originally Posted by tpyke
I'm surprised that no one sells a 3 1/8 insert with a 1 1/2" hole like Bob made....or do they?

Are the Oak park base plates counter bored to accept the brass inserts? If so, is it 3/16 or 3/4?
Attached Images
File Type: jpg oak park plate.jpg (20.4 KB, 29 views)
File Type: jpg oak park plate big.jpg (18.0 KB, 27 views)
__________________
MLCS Instruction Pages & Videos
plus FREE MLCS Project Plans
http://www.mlcswoodworking.com/shops.../instruct.html

Part Finder
find parts for your power tools

http://www.ereplacementparts.com/
Need some help replacing the parts
http://forums.ereplacementparts.com/

Many Router Tips from RWS
http://www.routerworkshop.com/router_tip_glossary.html
http://www.routerforums.com/email-ro...-members-only/

Router Tables ,Ready to use
http://www.rt1000.com/
http://rt1000.com/_wsn/page2.html

Bob J.

Last edited by bobj3; 11-22-2007 at 11:23 AM.
bobj3 is offline  
New Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Making your own sub base plate Mike Guide Bushings and Templates 29 02-11-2010 02:44 PM
Inlay Guide Bushing and base plate Doyle Portable Routing 3 06-07-2007 09:25 PM
choosing a base plate ... reikimaster Table-mounted Routing 5 01-13-2006 10:37 PM
Oak Park Phoenolic Base Plate needs 3 1/2" hole pmspirito Table-mounted Routing 5 03-23-2005 08:55 PM
Centering Base Plate -Sam- General Routing 15 01-04-2005 10:15 AM