Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Wed Dec 18, 2024 12:27 am


All times are UTC - 5 hours





Post new topic Reply to topic  [ 8 posts ] 
Author Message
PostPosted: Mon Dec 20, 2010 7:44 pm 
Offline
Cocobolo
Cocobolo

Joined: Tue Jun 15, 2010 4:49 pm
Posts: 365
Focus: Build
Status: Amateur
How many RPM's are your drill presses? Mine has a max of 3100 RPM, but I think I read somewhere the safe-t planers is 4-6000RPM.
Any of you guys using under the recommended RPM's?


Top
 Profile  
 
PostPosted: Mon Dec 20, 2010 8:11 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Oct 21, 2009 7:46 pm
Posts: 950
First name: Francis
Last Name: Richer
City: Montréal
State: Québec
Zip/Postal Code: H4G 2Z2
Country: Canada
Focus: Build
Status: Semi-pro
Most of press drill have a maximum around 3000... you got to get the money out to go higher. I'm pretty sure that at 4-6000 rpm you have a smooth cut, but i'm also pretty sure it could work great at 3100.

_________________
Francis Richer, Montréal
Les Guitares F&M Guitars


Top
 Profile  
 
PostPosted: Mon Dec 20, 2010 8:37 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Sat May 22, 2010 10:32 am
Posts: 2616
First name: alan
Last Name: stassforth
City: Santa Rosa
State: ca
Zip/Postal Code: 95404
Country: usa
Focus: Build
Status: Amateur
I just got one of those.
I don't know what my press speed is,
and I don't know how much runout it has, but that thing sure wanted to chuck some hard
figured walnut I was trying to thickness.
I gave up and used the bench belt sander.
Careful how you hold the wood.
Little bites, and keep the wood flat on the table.


Top
 Profile  
 
PostPosted: Mon Dec 20, 2010 8:39 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Thu Aug 18, 2005 2:21 am
Posts: 2924
Location: Changes when ever I move..Australia
Focus: Build
Status: Amateur
Am sure that faster is better, but if you set your drill press on highest rpm and adjust the feed rate accordingly it will be fine.

The main thing is that the tool must be sharp just like any wood working operation.

Cheers

Kim


Top
 Profile  
 
PostPosted: Tue Dec 21, 2010 9:07 am 
Offline
Koa
Koa
User avatar

Joined: Wed Dec 07, 2005 9:08 am
Posts: 535
First name: Pete
Last Name: Liccardello
City: Eden Prairie
State: Minnesota
Here is a link to a tutorial by Robbie O'Brien in which he talks about spindle speed and use of the Safe-T-Planer:

http://www.youtube.com/user/OBrienGuita ... faLmBGKjJY

_________________
Peter


Top
 Profile  
 
PostPosted: Tue Dec 21, 2010 10:06 am 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat May 17, 2008 1:11 pm
Posts: 2375
Location: Spokane, Washington
First name: Pat
Last Name: Foster
Country: USA
Focus: Build
Your spindle speed is fine, though bear in mind it isn't designed to hog off wood like a real planer.

Make sure the cutters are dead sharp. The table must be perpendicular to the spindle. This can be checked by chucking up a piece of coat hangar, such that you can rotate the spindle by hand and scribe a circle of 8 - 10" dia. on the table with the coat hangar barely touching. Anywhere it doesn't touch are low spots. And take off small amounts per pass, with narrow swipes.

Pat

_________________
formerly known around here as burbank
_________________

http://www.patfosterguitars.com


Top
 Profile  
 
PostPosted: Tue Dec 21, 2010 5:24 pm 
Offline
Koa
Koa
User avatar

Joined: Wed Jan 24, 2007 2:45 pm
Posts: 1337
Location: Calgary, Canada
Status: Amateur
I use mine a lot for tapering necks, headstocks and roughing out carved tops and backs. For each pass until I get to a light final one, I touch the edge of the safety planer disc to the top of the wood ensuring a blade isn't touching and lock the spindle. Each pass then comes out to around a 1/16" or so. You can use feeler gauges to adjust the final pass or two which will give you the best surface possible with a safety planer, at least in my experience. I used to thickness sides etc. with it before I got a thickness sander and it works well for that. As stated above, direction of feed is important to ensure it doesn't grab. My spindle speed is just over 3000 if I recall correctly.


Top
 Profile  
 
PostPosted: Tue Dec 21, 2010 9:25 pm 
Offline
Koa
Koa

Joined: Sat Apr 19, 2008 10:08 pm
Posts: 1958
Location: Missouri
First name: Patrick
Last Name: Hanna
State: Missouri
Country: USA
Yes. Fast RPMs. Slow rate of feed. SMALL depth of cut. Equally important to all this: Nice, sharp cutters. Sharpen them if you have dulled them or loaded them up with burned-on surface loads of residue. Take small cuts at a time, at high speed, and feed gently. Wear protection against a grab. You should be fine. It's a great tool. But, like all other power tools, it'll hurt you if you don't take the proper precautions. Or, it'll hurt your wood if used improperly. For some ideas, see Robbie O'Brien's excellent "Luthier Tips du Jour" on thicknessing backs and sides with a Saf-T-Planer. It's on YouTube.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 6 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