***** Guitar Project Jigs, Tools & Techniques Online Resources Archives OLF Video Page Library of plans MP3 Library Inlay Class
Offical Luthiers Forum





And our community proudly sponsored by:

RC Tonewoods | Stewart MacDonald | LuthiersForum
TasmanianTonewoods | OLF | OLF MERCH
Luthier Suppliers | Pacific Coast Woods | ELEVATE
OLF X | Tasmanian Acoustic Tonewood | Luthiers Forum Store!
Luthiers Forum | OLF Facebook | AVAIL SPACE
OLF | Alaska Specialty Woods | A.Hix Tonewood
Duke of Pearl | Birkonium CNC | Space




Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Thu Nov 28, 2024 11:35 am


Board index » Luthiers Forum Rooms » Guitar Building Forum

All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 
  Print view Previous topic | Next topic 
Author Message
Bill Higgs
PostPosted: Mon Mar 09, 2020 10:38 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Mon May 26, 2008 2:31 pm
Posts: 259
Location: Conway, Arkansas
I think I'm going to go ahead and make an elliptical template to cut my future sound ports.
What diameter router bit (downcut spiral I presume) would you recommend to give the least possibility of tearout?
Would it be larger or smaller? Sorry, I am new as far as router bit knowledge.
I am using a laminate trimmer with 1/4" shank compatibility, so it couldn't be any larger diameter than 1/4".
Thanks

_________________
Formerly know as Mandodiddle.
Top
 Profile  
 
Colin North
PostPosted: Tue Mar 10, 2020 2:13 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Fri Jul 10, 2009 4:44 am
Posts: 5498
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
FWIW I use a 1/4" downcut spiral bit (CMT) with a 1/4" laminate trimmer for my soundports, no problems for tear-out.

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.
Top
 Profile  
 
bcombs510
PostPosted: Tue Mar 10, 2020 6:32 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Mon Jul 27, 2015 8:21 am
Posts: 3605
First name: Brad
Last Name: Combs
Focus: Build
Status: Amateur
Same, 1/4”. I also made the templates for the port using an oval template from hobby lobby. They sell a set of plastic templates that I transferred onto 1/4” thick ply and cut close with the jigsaw and finished off with the spindle sander.

If you can find it the article from Jay Lichty in AL shows his clamping method. It works quite well to keep the whole setup stable.


Sent from my iPhone using Tapatalk Pro

_________________
Insta - https://www.instagram.com/cbcguitars/
Facebook - https://www.facebook.com/cbcguitars
Top
 Profile  
 
Barry Daniels
PostPosted: Tue Mar 10, 2020 10:28 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Fri Aug 19, 2005 4:02 am
Posts: 3263
Location: The Woodlands, Texas
First name: Barry
Last Name: Daniels
Router bits with 1/4" shanks certainly can have a larger diameter cutter. Not that you need that for a soundport. I use a 1/4" bit for that. Also, it does not have to be a downcut unless you are using especially chippy wood.
Top
 Profile  
 
Bill Higgs
PostPosted: Tue Mar 10, 2020 6:15 pm 
Offline
Cocobolo
Cocobolo
User avatar

Joined: Mon May 26, 2008 2:31 pm
Posts: 259
Location: Conway, Arkansas
Thanks guys. 1/4" sounds like the plan.

_________________
Formerly know as Mandodiddle.
Top
 Profile  
 
DannyV
PostPosted: Fri Mar 13, 2020 11:51 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Dec 30, 2006 3:20 am
Posts: 2593
Location: Powell River BC Canada
First name: Danny
Last Name: Vincent
1/8 with a 1/4 shank would be my personal preference. And fairly fresh ; )
Top
 Profile  
 
bluescreek
PostPosted: Tue Mar 17, 2020 8:01 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Mon Jan 28, 2008 5:21 am
Posts: 4905
Location: Central PA
First name: john
Last Name: hall
City: Hegins
State: pa
Zip/Postal Code: 17938
Country: usa
Focus: Build
Status: Professional
never use down cuts just be sure to use a sharp one

_________________
John Hall
blues creek guitars
Authorized CF Martin Repair
Co President of ASIA
You Don't know what you don't know until you know it
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 7 posts ] 

Board index » Luthiers Forum Rooms » Guitar Building Forum

All times are UTC - 5 hours


Who is online

Users browsing this forum: doncaparker and 69 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com