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Bandsaw Blade Tension Gauge

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Project by GarageWoodworks posted 10-28-2012 01:18 PM 3589 views 30 times favorited 20 comments Add to Favorites Watch

I made a bandsaw blade tension gauge from scrap wood and a dial indicator. Yep; yet another reason to by a dial indicator. Commercial examples can go for over $400.

I filmed the build process and you can watch it here:

http://www.youtube.com/watch?v=9iAkRLvLAvI

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide





20 comments so far

View Ken90712's profile

Ken90712

15304 posts in 1935 days


#1 posted 10-28-2012 02:25 PM

I always like watching your videos and boy do you love Dial Indicators LOL …. Great job as always. Going to have to make one of these…. THX

-- Ken, "Everyday above ground is a good day!"

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#2 posted 10-28-2012 02:36 PM

@Ken – Ha! Yep, I would definitely put the tool in my top three favorites. In my opinion it’s way under utilized by most woodworkers. When I hear that a woodworker owns a table saw but not a dial indicator my jaw drops.

Thanks for commenting!

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View a1Jim's profile (online now)

a1Jim

112836 posts in 2323 days


#3 posted 10-28-2012 02:45 PM

Cool idea

-- http://artisticwoodstudio.com Custom furniture

View Eric in central Florida's profile

Eric in central Florida

3672 posts in 2322 days


#4 posted 10-28-2012 02:53 PM

This is a really cool project and I’m surprised that I missed this video as I watch most of yours.
(They are really cool and I usually learn something too.)
You are the master of dial indicator uses and I think this is one I may have to try, as I have a hard time with the “not so accurate’ tension indicator on my saw.
Thanks and keep up the good work.

-- All glory comes from daring to begin.

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#5 posted 10-28-2012 02:57 PM

@a1Jim -Thank you

@Woodwrecker – You could subscribe to my YouTube channel and never miss a new video. I’m trying to grow my YouTube community and it’s slow going.

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View brevort's profile

brevort

69 posts in 1072 days


#6 posted 10-28-2012 05:43 PM

Some good information there….. I am going to make one for my band saw.

-- Rick

View Roger's profile

Roger

15280 posts in 1550 days


#7 posted 10-28-2012 07:17 PM

Very interesting. Nice way to check the tension

-- Roger from KY. Work/Play/Travel Safe. Kentuk55@bellsouth.net

View Bob817's profile

Bob817

653 posts in 1128 days


#8 posted 10-28-2012 08:12 PM

This is a great gauging system, where are you getting your numbers to set the tension for your blades I’m new at this so please forgive the ignorance I could use all the info. I can get. Thanks

-- ~ Bob ~ Newton, N.H.

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#9 posted 10-28-2012 08:36 PM

The formula for blade stretch is:

(S/D) x 29,000,000 Young's modulus for steel

S = blade stretch in inches
D = length of blade measured in inches

(0.001”/5”) * 29,000,000 = 5,800 psi

“Most blade manufacturers recommend 15,000 psi to 20,000 psi for a common carbon-steel blade.”

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View tinnman65's profile

tinnman65

1176 posts in 2160 days


#10 posted 10-28-2012 10:20 PM

Great video, I will definitely subscribe to your videos on youtube. Is there a reason you used wood for the nuts instead of a regular steel nut on the jig? Is it possible to over tighten?

-- Paul--- Creativity is allowing yourself to make mistakes. Art is knowing which ones to keep. — Scott Adams

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#11 posted 10-28-2012 10:38 PM

@tinman65 – There is a steel nut embedded in the wooden knob. It is inlay-ed in an hexagonal recess. Sorry – I should have mentioned that in the video.

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#12 posted 10-28-2012 10:48 PM

@tinman65 Look at the video at 4:22 and you can see the nut in the second knob in the background. :)

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View rdjack21's profile

rdjack21

265 posts in 1673 days


#13 posted 10-28-2012 11:11 PM

Way cool jig I’m going to have to make one as soon as I get done with working on my table saw.

Oh I’m a subscriber to your YourTube channel as well.

-- --- Richard Jackson

View GarageWoodworks's profile

GarageWoodworks

447 posts in 902 days


#14 posted 10-28-2012 11:15 PM

@rdjack21 – Thanks for the subscription! Hope I don’t disappoint down the road. :)

-- Subscribe on YouTube: http://www.youtube.com/user/GarageWoodworks?feature=guide

View Kindlingmaker's profile

Kindlingmaker

2654 posts in 2272 days


#15 posted 10-29-2012 01:38 AM

GW – You now have another subscriber. Thanks!

-- Never board, always knotty, lots of growth rings

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