"O" Rings On Router Bits & Reducers - Router Forums
 20Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 05-20-2018, 09:22 PM Thread Starter
Registered User
 
Hypnotoad's Avatar
 
Join Date: Apr 2018
Country: Australia
First Name: Phillip
Posts: 95
 
Default "O" Rings On Router Bits & Reducers

Since using 1/2" to 1/4" and 1/2" to 8mm reducers and also using small diameter 1/4" router bit I have found what I think is a solution to them falling down inside the router spindle when using a router table.

I got some "O" rings that are a tight fit on a 1/2" shaft and put them near the end of the reducers so they don't fall into the router spindle. If I get some 1/2" shank straight bits with diameters 1/2" or less I will try them on them too, this will also make it easy to have them go into the collet the right distance.

I am going to get some even smaller ones and put them on the 1/4" router bits with diameters of 1/4" and smaller so they don't fall in either.

Using them on the reducers they don't fly off or move at all, so I can't see a problem with them on the router bit shanks either, anyone else do this?
Hypnotoad is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 05-20-2018, 09:52 PM
Forum Contributor
 
Stick486's Avatar
 
Join Date: Jan 2013
Country: United States
First Name: Stick
Posts: 25,103
 
Default

why...
just mark the shank at 1'' or use the mark(s) provided by the manufacturer...
and change/install the bits w/ the router on it's side..
roxanne562001 likes this.

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

Stick....
Forget the primal scream, just ROAR!!!
"SNORK Mountain Congressional Library and Taxidermy”
Stick486 is offline  
post #3 of 17 (permalink) Old 05-20-2018, 10:09 PM
Forum Contributor
 
DesertRatTom's Avatar
 
Join Date: Jul 2012
Country: United States
First Name: Tom
Posts: 16,021
 
Default

Following Mark Somerfeld's suggestion, I drop a half inch grommet into the bottom of the collet so all the bits bottom out at the same depth, about an eighth of an inch from the bottom. I just eyeball it on the 1/4 shanks using a mark if I see one, or must bottom it and then pull it up an eighth or so. I guess you could find a small enough slug of rubber for the 1/4 collets, but haven't found such a thing yet. The small O rings might work out OK, but use a couple of them. Stick's suggestion is fine, but I prefer the grommet.
JFPNCM and roxanne562001 like this.

The more I do, the less I accomplish.
DesertRatTom is offline  
Sponsored Links
Advertisement
 
post #4 of 17 (permalink) Old 05-20-2018, 10:14 PM
Registered User
 
JOAT's Avatar
 
Join Date: Apr 2010
Country: United States
First Name: Theo
Posts: 6,102
 
Default

All I have are 1/4" routers. I drop the bit in, raise it about 1/8", tighten, and no problems.

"It ain't what you're told, it's what you know." - Granny Weatherwax
Gather the villagers, pitchforks, torches; we march at dusk!
Some days, the supply of available curse words is insufficient to meet my demands.
.....Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.
JOAT is online now  
post #5 of 17 (permalink) Old 05-20-2018, 10:46 PM
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,961
 
Default

I think putting an o ring on an 8mm or 1/4” bit to keep the reducer from falling off is a great idea. It’s easy enough to see when the reducer is in the collet far enough and the o ring makes sure the bit is all the way in the reducer. For using bits the same size as the collet I just mark the shaft on the bit like Stick said. One inch will always be close to the length of the collet.

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 offline  
post #6 of 17 (permalink) Old 05-21-2018, 08:54 AM
Registered User
 
chessnut2's Avatar
 
Join Date: Sep 2011
Country: United States
First Name: Jim
Posts: 1,506
 
Default

I was doing that a few years ago, but found that the heat rising out the router when it was table mounted was softening them, since they were plain rubber. So they were slipping out of location too easily. A while back, I bought some silicone rings because they're supposed to have higher heat tolerance.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

So far they're working fine. My vision is failing, and it's a lot easier to locate the bit by feel than lining up a mark by sight. But I've been wondering if I should cement them in place. Maybe a tiny drop of super glue?
roxanne562001 likes this.

It seems I never finish what I
chessnut2 is online now  
post #7 of 17 (permalink) Old 05-21-2018, 09:04 AM
Registered User
 
chessnut2's Avatar
 
Join Date: Sep 2011
Country: United States
First Name: Jim
Posts: 1,506
 
Default

Quote:
Originally Posted by chessnut2 View Post
I was doing that a few years ago, but found that the heat rising out the router when it was table mounted was softening them, since they were plain rubber. So they were slipping out of location too easily. A while back, I bought some silicone rings because they're supposed to have higher heat tolerance.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

So far they're working fine. My vision is failing, and it's a lot easier to locate the bit by feel than lining up a mark by sight. But I've been wondering if I should cement them in place. Maybe a tiny drop of super glue?
P.S. It also makes it enormously easier for me to install a bit in a CNC mounted router.
kp91 likes this.

It seems I never finish what I
chessnut2 is online now  
post #8 of 17 (permalink) Old 05-21-2018, 09:55 AM
Honored Member
 
harrysin's Avatar
 
Join Date: Jan 2007
Country: Australia
First Name: Harry
Posts: 14,326
     
Send a message via Skype™ to harrysin
Default

Some time ago I posted the results of an investigation I carried out among many router manufacturers concerning the correct depth to insert router bits into the chuck. The result showed without any doubt that inserting a bit more than 1" into the chuck served no purpose at all. I too thought of the "O" ring idea and made this simple jig which avoids the ring from twisting as it's placed 1" from the end of the bit. This distance is not critical, just a guide.
Attached Thumbnails
Click image for larger version

Name:	O-ring-tool.jpg
Views:	64
Size:	53.0 KB
ID:	353017  


Harry



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






harrysin is offline  
post #9 of 17 (permalink) Old 05-21-2018, 11:31 AM
Registered User
 
Join Date: Dec 2016
Country: Canada
First Name: Mark
Posts: 41
 
Default

That's a great idea Harry. I'm going to make one but it won't look as nice as your block of wood
MYB506 is offline  
post #10 of 17 (permalink) Old 05-21-2018, 12:04 PM
Registered User
 
chessnut2's Avatar
 
Join Date: Sep 2011
Country: United States
First Name: Jim
Posts: 1,506
 
Default

Great idea, Harry. Much better than the Rube Goldberg monstrosity i came up with. Thanks

It seems I never finish what I
chessnut2 is online now  
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
Sommerfeld Router Bits and the Muscle Chuck tomp913 Table-mounted Routing 7 11-15-2017 08:08 PM
Bits for Router Lathe daveywoodturner Router Bits - Types and Usage 1 07-03-2017 07:22 AM
up and down cut spiral bits in hand held router vs table mounted router almost there Router Bits - Types and Usage 17 04-22-2014 12:00 PM
Help on mounting triton guides (TGA001) on a router table dex2008 Table-mounted Routing 9 08-23-2012 07:38 PM
Motorized Router Lift - Eagle Lake Style johnwnixon Table-mounted Routing 14 05-23-2012 05:51 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