Are collet extenders no longer required? - Router Forums
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 24 (permalink) Old 04-17-2014, 09:41 AM Thread Starter
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 Are collet extenders no longer required?

Please study the photo of a MUSCLECHUCK and you will realize that less than one half inch of the chuck actually locks the bit securely. Now bear in mind that we already obtain at least an extra 1/2" depth of cut, now supposing that you use a quality bit that should have little or no run-out, then we can add a great deal more length to the bit. Whilst this may not give quite as much extra depth of cut as a collet extension it will be sufficient for all the many deep routed projects that I have made over the years and because of the lower mass will give a quieter and better finish than an extension.
I bought the CMT extender in about 2001, it cost about $90.00, far more than others that were available but I have never been happy with the amount of vibration. So, will extenders now become obsolete?
Attached Thumbnails
Click image for larger version

Name:	Musclechuck-grip.jpg
Views:	177
Size:	26.8 KB
ID:	70438  

Click image for larger version

Name:	CMT-extension.jpg
Views:	171
Size:	39.4 KB
ID:	70439  


Harry



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






harrysin is offline  
Sponsored Links
Advertisement
 
post #2 of 24 (permalink) Old 04-17-2014, 10:31 AM
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 15,889
 
Default

I am not a believer in extenders Harry. Even if they are well machined the amount of extra torque on the bottom bearing can not be good for the router. To me it is a case of using the right tool for the job and if you want to make a deep recess, in most cases you could use a lathe with a faceplate to make it.

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 #3 of 24 (permalink) Old 04-17-2014, 11:30 AM
Registered User
 
MikeMa's Avatar
 
Join Date: Jul 2006
Country: United States
First Name: Mike
Posts: 1,041
 
Default

I had looked at and considered collet extenders, but I had always questioned the reliability and safety of them. From a reliability, I would think it would introduce considerable run out or wobble of the bit, as indicated by the vibration you mentioned.

I haven't tried the muscle chuck yet. The few people I know how have them seem to be happy with them. From the picture it looks the compression is a result of a screw on one side pulling the metal together to create the compression needed to hold the bit. As the metal of the chuck is pulled and released over time, I would be curious to hear if it will continue to keep the bit perfectly centered in the router or if it will create some run out overtime as the metal fatigues.

-Mike
Visit my woodworking blog: http://madermadeit.com/
MikeMa is offline  
Sponsored Links
Advertisement
 
post #4 of 24 (permalink) Old 04-18-2014, 12:38 AM Thread Starter
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

Mike, when you insert a bit into a MUSCLECHUCK there is ZERO sideways movement, in fact when even a heavy bit is inserted into a table mounted router, it smoothly glides in, I have never encountered this with any other router/chuck. Also bear in mind that only a half turn of the high tensile Allen screw perfectly locks/unlocks the bit. As I've said so many times, this is precision engineering at it's finest.

Harry



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






harrysin is offline  
post #5 of 24 (permalink) Old 04-18-2014, 01:49 AM
Official Greeter
 
jw2170's Avatar
 
Join Date: Jan 2008
Country: Australia
First Name: James
Posts: 18,529
 
Send a message via Skype™ to jw2170
Default

I feel that a collet extender will still be required to reach deep into a bowl....

James
Sydney, Australia
.

I don't mind if other members disagree with my comments.
I don't profess to know everything, and I may learn something new.

"Never attribute to malice that which is adequately explained by stupidity."




jw2170 is offline  
post #6 of 24 (permalink) Old 04-18-2014, 06:14 AM
Registered User
 
kywoodchopper's Avatar
 
Join Date: Jul 2013
Country: United States
First Name: malcolm
Posts: 472
 
Default

I have found that Triton routers allow for the chuck to be raised high enough that an extender would not be necessary. As pointed out by others, I am a little afraid of extenders. Malcolm / Kentucky USA
kywoodchopper is offline  
post #7 of 24 (permalink) Old 04-18-2014, 06:46 AM
Registered User
 
Join Date: Oct 2013
Country: United States
First Name: PAD3
Posts: 47
 
Default

I have used collet extenders extensively routing bowls of all shapes and depths have not had any problems. No wobble or vibration; I do use 1/2'shafts.
PAD3 is offline  
post #8 of 24 (permalink) Old 04-18-2014, 07:18 AM
Registered User
 
Join Date: Feb 2010
Country: United States
First Name: Richard
Posts: 434
 
Send a message via Skype™ to rwbaker
Default

Harry and I have had a discussion in progress on this very subject. The Musclechuck (a very well made chunk of metal) works for him and others while the MLCS 1/2" is 29.00 USD, is one size fits all 1/2" machines, extends the bit, has zero run-out and if purchased through Amazon is fully returnable. This has worked for me for a number of years and is all I need. Try them both and let us know your experience.

Best wishes - Baker
rwbaker is offline  
post #9 of 24 (permalink) Old 04-18-2014, 07:19 AM Thread Starter
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

Quote:
Originally Posted by jw2170 View Post
I feel that a collet extender will still be required to reach deep into a bowl....
I don't think so James, study these photographs, the first one shows a dish cutter inserted 25mm into the Makita RP2301FC's original chuck whilst in the second shot it is inserted 12.5mm into a MUSCLECHUCK. The third shot shows the deepest box that I've routed from solid wood using a dish cutter and that is only 35mm deep and did require my collet extender. However, if we use a straight bit which in my collection go up to almost 80mm in which case an extender isn't required! The final shot shows deep routing using a straight bit without an extender.
Attached Thumbnails
Click image for larger version

Name:	deep-routing1.jpg
Views:	82
Size:	46.1 KB
ID:	70448  

Click image for larger version

Name:	deep-routing2.jpg
Views:	71
Size:	47.2 KB
ID:	70449  

Click image for larger version

Name:	deep-routing3.jpg
Views:	75
Size:	80.5 KB
ID:	70450  

Click image for larger version

Name:	Dbox33.jpg
Views:	72
Size:	49.8 KB
ID:	70451  


Harry



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






harrysin is offline  
post #10 of 24 (permalink) Old 04-18-2014, 09:52 AM Thread Starter
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

Gentlemen, would you please let me know the brand of your extenders and a photo would really be appreciated. I can't imagine that they look anything like my CMT.

Harry



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






harrysin 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
Router bits no longer fitting inside collet? Sheshu General Routing 5 11-20-2012 10:32 AM
MY PC 7518 collet was junk, I replaced it with a Precision Collet what a difference. Bill Huber General Routing 0 09-25-2012 11:52 PM
Already Problems neuschu New Member Introductions 11 12-15-2009 07:01 AM
On lifts and collet extenders dustmaker Table-mounted Routing 10 07-31-2009 12:00 PM
Collet Extenders Charlie5 Table-mounted Routing 4 09-02-2005 01:29 AM

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