Jig for slotted backs.

[Stewie Simpson]

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]

You do this freehand, don't you? Scares me! Wouldn't putting a pair of burly handles on top improve the safety?

[Stewie Simpson]

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]

325357
Eek power tool!

[ken hatch]

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]

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]

I don't do slotting saws. They scare me.

[Stewie Simpson]

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]

Gotcha! And roger on the acceptable risk!

[lowell holmes]

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]

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]

Thanks for Sharing Stewie! I love the innovation!