Bandsaw Tensioning "Socket"

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Project by BobAnderton posted 10-06-2013 08:22 PM 1802 views 4 times favorited 4 comments Add to Favorites Watch

I often haven’t been detensioning my bandsaw blade after using it. I know that I should to prevent deforming the tires or weakening the spring, but it’s a notable pain to turn that little tensioning knob. It’s a real struggle every time. It’s too close to the upper wheel cover and it’s really difficult to turn, especially when tightening. It’s too tempting to leave it tensioned “in case I need to use it again soon”.

The tensioning screw of this Tiawanese import 18” bandsaw had the knob cast onto the end of it, and was a metric thread, so I didn’t really want to replace or ruin the existing screw and knob so I made this interface piece that receives the knob on one side and accepts a 1/2” drive rachet on the other. I made a disc out of a piece of bradford pear on the lathe using a screw chuck. On one face I first drilled the six outer holes spaced 60 degrees apart on a 1.5” circle, and then used a forstner bit to drill the center hole. I squared the hole that had been the screw chuck mounting hole with a 1/2 inch chisel and it works pretty slick. Tensioning and detensioning is a breeze now.

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

4 comments so far

View Tbowen's profile


113 posts in 3035 days

#1 posted 10-06-2013 09:12 PM

very cool !!! i like the work, looks very nice

-- don't out smart your common sense

View jaysuzi's profile


150 posts in 2859 days

#2 posted 10-07-2013 12:46 AM

Great idea. I tend not to detention mine neither. I should give this a try.

-- Jay in Pennsylvania,

View Oldtool's profile


3209 posts in 3250 days

#3 posted 10-07-2013 01:34 AM

Nice one, slick idea.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln

View Fishinbo's profile


11362 posts in 3235 days

#4 posted 10-09-2013 02:10 PM

Brilliant idea! Very innovative and it looks good as well. Great work!


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