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-   -   Bandsaw Blade Tension Safety Switch (https://www.routerforums.com/shop-safety/126618-bandsaw-blade-tension-safety-switch.html)

DonkeyHody 01-17-2018 03:56 PM

Bandsaw Blade Tension Safety Switch
 
2 Attachment(s)
Just once, I forgot to tension the blade before turning the bandsaw on. Don't want to do that again.

For less than $10, I bought a push-button limit switch similar to the one on the blade brake. A block of wood acts as a spacer to hold the switch in the proper position. I Drilled and tapped the back of the saw case to hold the block in place. I wired the tension switch in series with the blade brake switch. Now the motor won't start unless the blade is tensioned.

difalkner 01-17-2018 04:38 PM

Nice work, Andy! How's it work? Looks foolproof to me. Laguna should use that and pay you in saw blades!

David

DonkeyHody 01-17-2018 05:24 PM

Quote:

Originally Posted by difalkner (Post 1782690)
Nice work, Andy! How's it work? Looks foolproof to me. Laguna should use that and pay you in saw blades!

David

How's it work?? If you mean does it work well, yes it does. The blade tension lever must be at the limit of its travel or the saw won't start.

If you mean "how" does it work, it interrupts the current to the magnetic coil that keeps the motor switch engaged. This push-button switch has 3 terminals. One is "Common", one is on when the button is pushed, the other is on when the button is released.

difalkner 01-17-2018 07:35 PM

Yes, I meant how well does it work but I didn't phrase that correctly, did I? I understand the electrical part.

But the electrical explanation may help someone who doesn't understand that part so good response on both counts - thanks!

David

Dejure 01-25-2018 02:11 PM

Good solution.

Nickp 01-25-2018 02:44 PM

Nicely done...

Cherryville Chuck 01-25-2018 03:19 PM

I like it. Nice and simple but still very effective.

charlsara 05-21-2018 12:04 PM

Very slick! I may adopt that. I started my Laguna untensioned one time. The blade came of as soon as I started cutting. I thought I had broke the 150.00 Resaw King blade but it was OK, Whew! Now I keep a stick on the table with "blade tension off" wrote on it. I lay it aside when the blade is tensioned.

DesertRatTom 05-21-2018 02:15 PM

Nice idea on the switch. But for my little bandsaw kept in the shop, a simple sign would help. Maybe attach it to a short wire so I can flip it away without losing track of it. I think you should suggest this to Laguna.

DonkeyHody 05-21-2018 07:14 PM

Quote:

Originally Posted by DesertRatTom (Post 1933665)
Nice idea on the switch. But for my little bandsaw kept in the shop, a simple sign would help. Maybe attach it to a short wire so I can flip it away without losing track of it. I think you should suggest this to Laguna.

I went to Laguna's web site and submitted a message to customer service suggesting they add a stop switch on the blade tension lever. No reply.


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