Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Fri Apr 11, 2025 5:33 am


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 11 posts ] 
Author Message
PostPosted: Wed Apr 09, 2025 6:24 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7449
First name: Ed
Last Name: Bond
City: Nanaimo
Country: Canada
Focus: Build
Status: Professional
There’s nothing that I know of that is wrong with it. The blade is relatively new. It was sitting unused in my garage for many years and the table is rusted to heck, but I seem to recall it was doing this when I renovated it out of action. It starts fine, but when I try to cut with it, the blade bogs down and sometimes even to s stop.

Any ideas?

How hard is it to replace a bandsaw motor? KMS tools had a 2hp for 80$…



These users thanked the author meddlingfool for the post: Pat Foster (Wed Apr 09, 2025 7:08 pm)
Top
 Profile  
 
PostPosted: Wed Apr 09, 2025 7:12 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat May 17, 2008 1:11 pm
Posts: 2383
Location: Spokane, Washington
First name: Pat
Last Name: Foster
Country: USA
Focus: Build
You might check your line voltage. When I lived in an old neighborhood, it would vary 15%. I don't know how that would affect a BS, but it wreaked havoc on my work in the darkroom.

_________________
formerly known around here as burbank
_________________

http://www.patfosterguitars.com


Top
 Profile  
 
PostPosted: Wed Apr 09, 2025 7:14 pm 
Offline
Contributing Member
Contributing Member
User avatar

Joined: Sat Dec 05, 2009 3:51 pm
Posts: 1204
First name: Chris
Last Name: Ensor
City: Springfield
State: Missouri
Focus: Build
Status: Professional
I would start by looking at the motor. May be the bearings are starting to seize. If so, the motor may be struggling to turn and the extra resistance of cutting is too much for it. Replacing a motor isn’t a big deal as long as you’re mechanically inclined. Replacing motor bearings is also fairly easy if they aren’t stuck to the shaft or housing.

_________________
ELEVATE || Next Level Lutherie
http://elevatelutherie.com
&
http://ensorguitars.com


Top
 Profile  
 
PostPosted: Wed Apr 09, 2025 7:50 pm 
Offline
Koa
Koa

Joined: Mon Oct 17, 2011 4:10 pm
Posts: 754
First name: Bob
Last Name: Gramann
City: Fredericksburg
State: VA
Zip/Postal Code: 22408
Country: USA
Focus: Build
Status: Professional
All of the above plus check the bearings on the wheels. Almost every city has a bearing shop where you take the old bearing, they measure it, and give you a new one that turns.

I let the smoke out of a motor on a bandsaw I had long ago. Replacing the motor was simply moving the drive pulley to the new motor, bolting it in, and wiring it up. The motor mounts for this type of motor are pretty standard such that a motor fits many different machines. If you put too big of a motor on a bandsaw frame designed for less, the bigger motor may have the ability to distort the frame when the cut gets hard.

Along Pat’s line of reasoning above, make sure you’re not using an inadequate extension cord.


Top
 Profile  
 
PostPosted: Wed Apr 09, 2025 8:02 pm 
Offline
Koa
Koa

Joined: Mon Jul 11, 2005 5:17 am
Posts: 1016
Location: United States
City: Tyler
State: Texas
After running it, feel the temp of the motor. Should be nothing more than warm.


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 12:30 am 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7449
First name: Ed
Last Name: Bond
City: Nanaimo
Country: Canada
Focus: Build
Status: Professional
Thank you I will check all these things…


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 4:07 am 
Offline
Walnut
Walnut

Joined: Sat Jan 04, 2014 12:22 pm
Posts: 36
Location: Mexborough, Doncaster UK
First name: Roy
Last Name: Machin
City: Mexborough
State: South Yorkshire
Zip/Postal Code: S64 0HW
Country: United Kingdom
Focus: Build
Status: Amateur
If the saw has an induction motor I would check the run capacitor. Mine had the same problem as yours and a replacement capacitor cured it, likewise with my bench grinder and disk sander.
If you can`t check it with a meter I suggest that you replace it anyway, they`re cheap from Amazon.


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 8:43 am 
Offline
Contributing Member
Contributing Member

Joined: Tue Sep 25, 2012 6:56 pm
Posts: 496
First name: Aaron
Last Name: Hix
City: Chatsworth
State: Georgia
Zip/Postal Code: 30705
Country: USA
Focus: Build
Status: Professional
Bearings getting hot and sticking, or capacitors.

_________________
Guitar Maker and Purveyor of the World's Finest Tonewoods
http://www.aaronhixguitars.com/
http://stores.ebay.com/A-Hix-Tonewood-a ... r-Supplies


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 9:22 am 
Offline
Cocobolo
Cocobolo

Joined: Thu Oct 27, 2011 11:28 am
Posts: 187
First name: Leonard
Last Name: Duke
City: Kalamazoo
State: MI
Zip/Postal Code: 49001
Country: USA
Focus: Repair
Status: Amateur
Derail the drive belt at one end. Turn the motor by hand. Tension the blade and turn the bandsaw by hand. Don't get distracted and cut yourself. After these tests you might know if the problem is the motor or the saw.
With the blade off, check all the saw bearings for slop or roughness.
Is the blade path through the guides a nice straight line?


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 5:10 pm 
Offline
Koa
Koa

Joined: Sun Apr 25, 2010 4:46 pm
Posts: 538
First name: Mark
Last Name: McLean
City: Sydney
State: New South Wales
Zip/Postal Code: 2145
Country: Australia
Focus: Build
Status: Amateur
When mine started doing that it was the drive belt tension that was to blame. It was slack and slipping when the blade came under resistance. Tightening it up immediately improved things.


Top
 Profile  
 
PostPosted: Thu Apr 10, 2025 5:53 pm 
Offline
Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7449
First name: Ed
Last Name: Bond
City: Nanaimo
Country: Canada
Focus: Build
Status: Professional
I’ll look into that as well, thanks…


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 27 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