View Full Version : Jig for slotted backs.
Stewie Simpson
11-16-2015, 2:39 AM
A newly designed jig for resizing the slot on my backsaw hardbacks.
*Do not attempt this without the correct safe guards in place.*
The jig is 12 inches in length.
Stewie;
http://i1009.photobucket.com/albums/af219/swagman001/slitting%20jig/_DSC0069_zpsd5a8swhu.jpg (http://s1009.photobucket.com/user/swagman001/media/slitting%20jig/_DSC0069_zpsd5a8swhu.jpg.html)
http://i1009.photobucket.com/albums/af219/swagman001/slitting%20jig/_DSC0068_zpskwopx84p.jpg (http://s1009.photobucket.com/user/swagman001/media/slitting%20jig/_DSC0068_zpskwopx84p.jpg.html)
Kees Heiden
11-16-2015, 3:48 AM
You do this freehand, don't you? Scares me! Wouldn't putting a pair of burly handles on top improve the safety?
Stewie Simpson
11-16-2015, 5:17 AM
You do this freehand, don't you? Scares me! Wouldn't putting a pair of burly handles on top improve the safety?
Hi Kees. I have 2 on order.
regards Stewie;
Mike Cherry
11-16-2015, 8:02 AM
325357
Eek power tool!
ken hatch
11-16-2015, 9:04 AM
325357
Eek power tool!
And a big mother as well :p.
Stewie,
It's good to see you working. Someday soon I will have to have one of your saws, hopefully before you reach the magic 16.
ken
Niels Cosman
11-16-2015, 11:05 AM
Is there a bearing for controlling depth or is that just a washer on top?
I would definitely be worried about flying metal and fingers with this one! Be careful!!! :eek:
lowell holmes
11-16-2015, 2:52 PM
I don't do slotting saws. They scare me.
Stewie Simpson
11-16-2015, 6:19 PM
Is there a bearing for controlling depth or is that just a washer on top?
I would definitely be worried about flying metal and fingers with this one! Be careful!!! :eek:
Hi Niels. What is not shown within the photo's is an guide fence that I instal on the outboard side of the slitting saw that I use to control the depth of cut. To reach full slot depth usually takes me 5 to 6 passes. I have a bandsaw I use on occassions to slice timber to rough dimension. That when I really worry about loosing a finger. Every tool we use encompasses a certain level of risk of injury. Power tools especially. You try and identify what those risk factors are, then take the appropriate steps to reduce its potential.
regards Stewie;
Niels Cosman
11-16-2015, 9:06 PM
Gotcha! And roger on the acceptable risk!
lowell holmes
11-17-2015, 10:39 AM
Hi Niels. What is not shown within the photo's is an guide fence that I instal on the outboard side of the slitting saw that I use to control the depth of cut. To reach full slot depth usually takes me 5 to 6 passes. I have a bandsaw I use on occassions to slice timber to rough dimension. That when I really worry about loosing a finger. Every tool we use encompasses a certain level of risk of injury. Power tools especially. You try and identify what those risk factors are, then take the appropriate steps to reduce its potential.
regards Stewie;
That's why I have push sticks at my bandsaw. It is as dangerous as the table saw because the blade is moving slower and not making noise like a table saw.
I also have plywood sleds with sandpaper glued to the top for anti-skid. I can cut small pieces without endangering my fingers. The sled consists of a 6" X 12"x 1/4" plywood with a runner that slides in the ripping slot.
Stewie Simpson
11-17-2015, 11:09 PM
1st run using the new jig assembly. The newly cut slot is for 0.025 saw plate gauge. You will note outboard fence in place that controls the depth of cut. 3 full passes were taken to reach the required depth of slot.
http://i1009.photobucket.com/albums/af219/swagman001/slitting%20jig/_DSC0070_zps3mz7219v.jpg (http://s1009.photobucket.com/user/swagman001/media/slitting%20jig/_DSC0070_zps3mz7219v.jpg.html)
The new slot is parallel in both axis. No apparent heat build up or vibration was observed during the test.
http://i1009.photobucket.com/albums/af219/swagman001/slitting%20jig/_DSC0072_zpsjyouaagw.jpg (http://s1009.photobucket.com/user/swagman001/media/slitting%20jig/_DSC0072_zpsjyouaagw.jpg.html)
I did notice within this 2nd photo a false impression that the front 1 1/2" looks slightly wider than the rest of the slot . That is not the actual case. That slot is perfect in width and depth along the brass backs full length.
Note: I have 2 round handles (currently on order) that will be fitted to the top of the jig when they arrive.
regards Stewie;
Thomas Schneider
11-19-2015, 4:31 PM
Thanks for Sharing Stewie! I love the innovation!
Powered by vBulletin® Version 4.2.5 Copyright © 2024 vBulletin Solutions Inc. All rights reserved.